false2025FY0001493225http://fasb.org/us-gaap/2025#AccruedInvestmentIncomeReceivableP5Yhttp://fasb.org/us-gaap/2025#AccruedInvestmentIncomeReceivablehttp://fasb.org/us-gaap/2025#AccruedInvestmentIncomeReceivable0http://fasb.org/us-gaap/2025#AccountsPayableAndOtherAccruedLiabilitiesP5Yiso4217:USDxbrli:sharesiso4217:USDxbrli:sharesnfbk:segmentxbrli:purenfbk:securitynfbk:loannfbk:instrument00014932252025-01-012025-12-3100014932252025-06-3000014932252026-02-2700014932252025-12-3100014932252024-12-3100014932252024-01-012024-12-3100014932252023-01-012023-12-310001493225us-gaap:CommonStockMember2022-12-310001493225us-gaap:AdditionalPaidInCapitalMember2022-12-310001493225nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember2022-12-310001493225us-gaap:RetainedEarningsMember2022-12-310001493225us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-12-310001493225us-gaap:TreasuryStockCommonMember2022-12-3100014932252022-12-310001493225us-gaap:RetainedEarningsMember2023-01-012023-12-310001493225us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310001493225us-gaap:AdditionalPaidInCapitalMember2023-01-012023-12-310001493225nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember2023-01-012023-12-310001493225us-gaap:CommonStockMember2023-01-012023-12-310001493225us-gaap:TreasuryStockCommonMember2023-01-012023-12-310001493225us-gaap:CommonStockMember2023-12-310001493225us-gaap:AdditionalPaidInCapitalMember2023-12-310001493225nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember2023-12-310001493225us-gaap:RetainedEarningsMember2023-12-310001493225us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-12-310001493225us-gaap:TreasuryStockCommonMember2023-12-3100014932252023-12-310001493225us-gaap:RetainedEarningsMember2024-01-012024-12-310001493225us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-01-012024-12-310001493225us-gaap:AdditionalPaidInCapitalMember2024-01-012024-12-310001493225nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember2024-01-012024-12-310001493225us-gaap:CommonStockMember2024-01-012024-12-310001493225us-gaap:TreasuryStockCommonMember2024-01-012024-12-310001493225us-gaap:CommonStockMember2024-12-310001493225us-gaap:AdditionalPaidInCapitalMember2024-12-310001493225nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember2024-12-310001493225us-gaap:RetainedEarningsMember2024-12-310001493225us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-12-310001493225us-gaap:TreasuryStockCommonMember2024-12-310001493225us-gaap:RetainedEarningsMember2025-01-012025-12-310001493225us-gaap:AccumulatedOtherComprehensiveIncomeMember2025-01-012025-12-310001493225us-gaap:AdditionalPaidInCapitalMember2025-01-012025-12-310001493225nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember2025-01-012025-12-310001493225us-gaap:CommonStockMember2025-01-012025-12-310001493225us-gaap:TreasuryStockCommonMember2025-01-012025-12-310001493225us-gaap:CommonStockMember2025-12-310001493225us-gaap:AdditionalPaidInCapitalMember2025-12-310001493225nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember2025-12-310001493225us-gaap:RetainedEarningsMember2025-12-310001493225us-gaap:AccumulatedOtherComprehensiveIncomeMember2025-12-310001493225us-gaap:TreasuryStockCommonMember2025-12-3100014932252023-11-012023-11-300001493225srt:MinimumMember2025-12-310001493225us-gaap:BuildingMember2025-12-310001493225srt:MinimumMembernfbk:FurnitureAndEquipmentMember2025-12-310001493225srt:MaximumMembernfbk:FurnitureAndEquipmentMember2025-12-310001493225us-gaap:SoftwareAndSoftwareDevelopmentCostsMember2025-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMember2025-12-310001493225nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember2025-12-310001493225nfbk:GovernmentSponsoredEnterprisesDebtSecuritiesRealEstateMortgageInvestmentsConduitsMember2025-12-310001493225nfbk:RealEstateMortgageInvestmentsConduitsMember2025-12-310001493225nfbk:MunicipalBondsOtherDebtObligationsMember2025-12-310001493225nfbk:CorporateBondSecuritiesOtherDebtObligationsMember2025-12-310001493225us-gaap:OtherDebtSecuritiesMember2025-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMember2024-12-310001493225nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember2024-12-310001493225nfbk:GovernmentSponsoredEnterprisesDebtSecuritiesRealEstateMortgageInvestmentsConduitsMember2024-12-310001493225nfbk:RealEstateMortgageInvestmentsConduitsMember2024-12-310001493225nfbk:MunicipalBondsOtherDebtObligationsMember2024-12-310001493225nfbk:CorporateBondSecuritiesOtherDebtObligationsMember2024-12-310001493225us-gaap:OtherDebtSecuritiesMember2024-12-310001493225nfbk:OtherThanMortgageBackedSecuritiesMember2025-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMember2025-12-310001493225us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMembernfbk:PassThroughCertificatesMember2025-12-310001493225us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMembernfbk:RealEstateMortgageInvestmentsConduitsMember2025-12-310001493225us-gaap:MunicipalBondsMemberus-gaap:OtherDebtSecuritiesMember2025-12-310001493225us-gaap:CorporateBondSecuritiesMemberus-gaap:OtherDebtSecuritiesMember2025-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMember2024-12-310001493225us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMembernfbk:PassThroughCertificatesMember2024-12-310001493225us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMembernfbk:RealEstateMortgageInvestmentsConduitsMember2024-12-310001493225us-gaap:MunicipalBondsMemberus-gaap:OtherDebtSecuritiesMember2024-12-310001493225us-gaap:CorporateBondSecuritiesMemberus-gaap:OtherDebtSecuritiesMember2024-12-310001493225us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMembernfbk:PassThroughMember2025-12-310001493225nfbk:RealEstateMortgageInvestmentsConduitsMembernfbk:NonPassThroughMember2025-12-310001493225us-gaap:CorporateBondSecuritiesMember2025-12-310001493225us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2025-12-310001493225us-gaap:MunicipalBondsMember2025-12-310001493225nfbk:SmallBusinessAdministrationLoanFundMember2025-12-310001493225nfbk:SmallBusinessAdministrationLoanFundMember2024-12-310001493225us-gaap:MoneyMarketFundsMember2025-12-310001493225us-gaap:MoneyMarketFundsMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2024-12-310001493225nfbk:CommercialAndIndustrialAndOtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2025-12-310001493225nfbk:CommercialAndIndustrialAndOtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2024-12-310001493225us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember2025-12-310001493225us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember2024-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMember2025-01-012025-12-310001493225us-gaap:CommercialRealEstateMember2025-01-012025-12-310001493225nfbk:CommercialAndIndustrialLoansMember2025-01-012025-12-310001493225us-gaap:HomeEquityLoanMember2025-01-012025-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMember2024-01-012024-12-310001493225us-gaap:CommercialRealEstateMember2024-01-012024-12-310001493225nfbk:CommercialAndIndustrialLoansMember2024-01-012024-12-310001493225us-gaap:HomeEquityLoanMember2024-01-012024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:PassMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SpecialMentionMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:PassMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SpecialMentionMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:PassMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SpecialMentionMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:PassMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:PassMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:SpecialMentionMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2025-01-012025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:PassMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:SubstandardMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2025-01-012025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:PassMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SpecialMentionMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMember2024-01-012024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:PassMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SpecialMentionMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:PassMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SpecialMentionMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:PassMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:PassMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:SpecialMentionMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2024-01-012024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:PassMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:SubstandardMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2024-01-012024-12-310001493225srt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225srt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225srt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembersrt:MultifamilyMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembersrt:MultifamilyMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembersrt:MultifamilyMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembersrt:MultifamilyMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembersrt:MultifamilyMember2025-12-310001493225us-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:CommercialLoanMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:CommercialLoanMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:CommercialLoanMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:CommercialLoanMember2025-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMember2025-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMember2025-12-310001493225us-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMemberus-gaap:PassMember2025-12-310001493225us-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMember2025-12-310001493225us-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:NonperformingFinancingReceivableMember2025-12-310001493225srt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225srt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225srt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembersrt:MultifamilyMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembersrt:MultifamilyMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembersrt:MultifamilyMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembersrt:MultifamilyMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembersrt:MultifamilyMember2024-12-310001493225us-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:CommercialLoanMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:CommercialLoanMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:CommercialLoanMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:CommercialLoanMember2024-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMember2024-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:OneToFourFamilyResidentialMortgageMember2024-12-310001493225us-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:NonperformingFinancingReceivableMember2024-12-310001493225us-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:NonperformingFinancingReceivableMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:NonperformingFinancingReceivableMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:NonperformingFinancingReceivableMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:PassMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:PassMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMemberus-gaap:PassMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:PassMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:SpecialMentionMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:SpecialMentionMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMemberus-gaap:SpecialMentionMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:SpecialMentionMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:PassMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:PassMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMemberus-gaap:PassMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:PassMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:SubstandardMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembersrt:MultifamilyMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:CommercialLoanMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SpecialMentionMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:SubstandardMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:PassMembernfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:PassMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:PassMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMemberus-gaap:PassMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:PassMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:SpecialMentionMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:SpecialMentionMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMemberus-gaap:SpecialMentionMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:SpecialMentionMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:PassMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:PassMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMemberus-gaap:PassMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:PassMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:SubstandardMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMembersrt:MultifamilyMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:CommercialLoanMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:HomeEquityMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMembersrt:MultifamilyMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:CommercialLoanMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:HomeEquityMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMembersrt:MultifamilyMember2025-01-012025-12-310001493225nfbk:RealEstatePortfolioSegmentMembersrt:MultifamilyMember2024-01-012024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:CommercialLoanMember2025-01-012025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:CommercialLoanMember2024-01-012024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:HomeEquityMember2025-01-012025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:HomeEquityMember2024-01-012024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMember2025-01-012025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMember2024-01-012024-12-310001493225nfbk:RealEstatePortfolioSegmentMembernfbk:OneToFourFamilyResidentialMortgageMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMembernfbk:OneToFourFamilyResidentialMortgageMember2024-12-310001493225us-gaap:CommercialLoanMemberus-gaap:PaymentDeferralMember2025-01-012025-12-310001493225us-gaap:CommercialLoanMembernfbk:TermExtensionMember2025-01-012025-12-310001493225us-gaap:CommercialLoanMembernfbk:PaymentDelayTermExtensionAndInterestRateReductionsMember2025-01-012025-12-310001493225us-gaap:CommercialLoanMember2025-01-012025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:PaymentDeferralMember2025-01-012025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMembernfbk:TermExtensionMember2025-01-012025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMembernfbk:PaymentDelayTermExtensionAndInterestRateReductionsMember2025-01-012025-12-310001493225us-gaap:PaymentDeferralMember2025-01-012025-12-310001493225nfbk:TermExtensionMember2025-01-012025-12-310001493225nfbk:PaymentDelayTermExtensionAndInterestRateReductionsMember2025-01-012025-12-310001493225us-gaap:CommercialLoanMembernfbk:PrincipalForgivenessInterestRateReductionAndTermExtensionMember2024-01-012024-12-310001493225us-gaap:CommercialLoanMemberus-gaap:PaymentDeferralMember2024-01-012024-12-310001493225us-gaap:CommercialLoanMembernfbk:TermExtensionMember2024-01-012024-12-310001493225us-gaap:CommercialLoanMembernfbk:InterestRateReductionMember2024-01-012024-12-310001493225us-gaap:CommercialLoanMembernfbk:PaymentDelayTermExtensionAndInterestRateReductionsMember2024-01-012024-12-310001493225us-gaap:CommercialLoanMember2024-01-012024-12-310001493225us-gaap:HomeEquityMembernfbk:PrincipalForgivenessInterestRateReductionAndTermExtensionMember2024-01-012024-12-310001493225us-gaap:HomeEquityMemberus-gaap:PaymentDeferralMember2024-01-012024-12-310001493225us-gaap:HomeEquityMembernfbk:TermExtensionMember2024-01-012024-12-310001493225us-gaap:HomeEquityMembernfbk:InterestRateReductionMember2024-01-012024-12-310001493225us-gaap:HomeEquityMembernfbk:PaymentDelayTermExtensionAndInterestRateReductionsMember2024-01-012024-12-310001493225us-gaap:HomeEquityMember2024-01-012024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMembernfbk:PrincipalForgivenessInterestRateReductionAndTermExtensionMember2024-01-012024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:PaymentDeferralMember2024-01-012024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMembernfbk:TermExtensionMember2024-01-012024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMembernfbk:InterestRateReductionMember2024-01-012024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMembernfbk:PaymentDelayTermExtensionAndInterestRateReductionsMember2024-01-012024-12-310001493225nfbk:PrincipalForgivenessInterestRateReductionAndTermExtensionMember2024-01-012024-12-310001493225us-gaap:PaymentDeferralMember2024-01-012024-12-310001493225nfbk:TermExtensionMember2024-01-012024-12-310001493225nfbk:InterestRateReductionMember2024-01-012024-12-310001493225nfbk:PaymentDelayTermExtensionAndInterestRateReductionsMember2024-01-012024-12-310001493225us-gaap:CommercialLoanMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225us-gaap:CommercialLoanMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:CommercialLoanMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:CommercialLoanMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:CommercialLoanMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:FinancialAssetNotPastDueMember2025-12-310001493225nfbk:FinancialAsset30To89DaysPastDueMember2025-12-310001493225us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2025-12-310001493225us-gaap:FinancialAssetPastDueMember2025-12-310001493225us-gaap:CommercialLoanMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:CommercialLoanMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:CommercialLoanMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:CommercialLoanMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:CommercialLoanMember2024-12-310001493225us-gaap:HomeEquityMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225us-gaap:HomeEquityMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:HomeEquityMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:HomeEquityMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:HomeEquityMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMembernfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:FinancialAssetNotPastDueMember2024-12-310001493225nfbk:FinancialAsset30To89DaysPastDueMember2024-12-310001493225us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310001493225us-gaap:FinancialAssetPastDueMember2024-12-310001493225us-gaap:HomeEquityMember2025-01-012025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:CommercialAndMultifamilyLoanMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:CommercialAndMultifamilyLoanMember2025-01-012025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMember2025-01-012025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMember2025-01-012025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMember2025-01-012025-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2025-01-012025-12-310001493225us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember2025-01-012025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:CommercialAndMultifamilyLoanMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:CommercialAndMultifamilyLoanMember2023-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMember2023-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMember2023-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMember2023-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2023-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2023-12-310001493225us-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2023-12-310001493225us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember2023-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:CommercialAndMultifamilyLoanMember2024-01-012024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:OneToFourFamilyResidentialMortgageMember2024-01-012024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMemberus-gaap:HomeEquityMember2024-01-012024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMembernfbk:ConstructionAndLandLoansMember2024-01-012024-12-310001493225nfbk:OtherPortfolioSegmentMemberus-gaap:FinancialAssetOtherThanFinancialAssetAcquiredWithCreditDeteriorationMember2024-01-012024-12-310001493225us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember2024-01-012024-12-310001493225us-gaap:LandMember2025-12-310001493225us-gaap:LandMember2024-12-310001493225us-gaap:BuildingAndBuildingImprovementsMember2025-12-310001493225us-gaap:BuildingAndBuildingImprovementsMember2024-12-310001493225us-gaap:LeaseholdsAndLeaseholdImprovementsMember2025-12-310001493225us-gaap:LeaseholdsAndLeaseholdImprovementsMember2024-12-310001493225us-gaap:FurnitureAndFixturesMember2025-12-310001493225us-gaap:FurnitureAndFixturesMember2024-12-310001493225us-gaap:LeaseholdImprovementsMember2025-12-310001493225us-gaap:LeaseholdImprovementsMember2024-12-310001493225us-gaap:CertificatesOfDepositMember2025-12-310001493225us-gaap:CertificatesOfDepositMember2024-12-310001493225srt:MaximumMember2025-12-310001493225srt:MinimumMember2024-12-310001493225srt:MaximumMember2024-12-310001493225us-gaap:FederalHomeLoanBankAdvancesMember2025-12-310001493225us-gaap:FederalHomeLoanBankAdvancesMember2024-12-310001493225us-gaap:FederalHomeLoanBankAdvancesMember2025-01-012025-12-310001493225us-gaap:FederalHomeLoanBankAdvancesMember2024-01-012024-12-310001493225us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember2025-01-012025-12-310001493225us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember2024-01-012024-12-310001493225nfbk:BankTermFundingProgramBorrowingsMember2025-01-012025-12-310001493225nfbk:BankTermFundingProgramBorrowingsMember2024-01-012024-12-310001493225us-gaap:FederalHomeLoanBankAdvancesMember2025-12-310001493225us-gaap:FederalHomeLoanBankAdvancesMember2024-12-310001493225us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember2025-12-310001493225us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseMember2024-12-310001493225nfbk:BankTermFundingProgramBorrowingsMember2025-12-310001493225nfbk:BankTermFundingProgramBorrowingsMember2024-12-310001493225nfbk:BankTermFundingProgramBorrowingsMember2024-01-012024-01-310001493225us-gaap:SubordinatedDebtMember2022-06-170001493225us-gaap:SubordinatedDebtMember2022-06-172022-06-170001493225us-gaap:SubordinatedDebtMember2023-01-012023-12-310001493225us-gaap:SubordinatedDebtMember2025-01-012025-12-310001493225us-gaap:SubordinatedDebtMember2024-01-012024-12-310001493225stpr:NY2025-01-012025-12-310001493225stpr:NY2024-01-012024-12-310001493225stpr:NY2023-01-012023-12-310001493225stpr:NJ2025-01-012025-12-310001493225stpr:NJ2024-01-012024-12-310001493225stpr:NJ2023-01-012023-12-310001493225nfbk:NewYorkCityMember2025-01-012025-12-310001493225nfbk:NewYorkCityMember2024-01-012024-12-310001493225nfbk:NewYorkCityMember2023-01-012023-12-310001493225stpr:DE2025-01-012025-12-310001493225stpr:DE2024-01-012024-12-310001493225stpr:DE2023-01-012023-12-310001493225srt:MinimumMember2025-01-012025-12-310001493225srt:MaximumMember2025-01-012025-12-310001493225nfbk:FirstEsopMember2025-12-310001493225nfbk:FirstEsopMember2025-01-012025-12-310001493225nfbk:FirstEsopMember2024-12-310001493225nfbk:SecondEsopMember2025-12-310001493225nfbk:SecondEsopMember2025-01-012025-12-310001493225nfbk:SecondEsopMember2024-12-310001493225nfbk:SupplementalEsopMember2025-01-012025-12-310001493225nfbk:SupplementalEsopMember2024-01-012024-12-310001493225nfbk:SupplementalEsopMember2023-01-012023-12-310001493225us-gaap:OtherPensionPlansDefinedBenefitMember2024-12-310001493225us-gaap:OtherPensionPlansDefinedBenefitMember2023-12-310001493225us-gaap:OtherPensionPlansDefinedBenefitMember2022-12-310001493225us-gaap:OtherPensionPlansDefinedBenefitMember2025-01-012025-12-310001493225us-gaap:OtherPensionPlansDefinedBenefitMember2024-01-012024-12-310001493225us-gaap:OtherPensionPlansDefinedBenefitMember2023-01-012023-12-310001493225us-gaap:OtherPensionPlansDefinedBenefitMember2025-12-310001493225us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember2025-12-310001493225us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember2024-12-310001493225us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember2025-01-012025-12-310001493225us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember2024-01-012024-12-310001493225us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember2023-01-012023-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMember2019-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMembernfbk:RestrictedStockAndRestrictedStockUnitsRSUsMember2019-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMember2025-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMembernfbk:RestrictedStockAndRestrictedStockUnitsRSUsMember2025-12-310001493225nfbk:TwoThousandFourteenEquityIncentivePlanMember2024-12-310001493225nfbk:TwoThousandFourteenEquityIncentivePlanMemberus-gaap:RestrictedStockMember2024-12-310001493225nfbk:TwoThousandFourteenEquityIncentivePlanMemberus-gaap:EmployeeStockOptionMember2024-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMemberus-gaap:RestrictedStockUnitsRSUMember2025-01-012025-12-310001493225us-gaap:RestrictedStockUnitsRSUMemberus-gaap:ShareBasedCompensationAwardTrancheOneMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2025-01-012025-12-310001493225us-gaap:RestrictedStockUnitsRSUMemberus-gaap:ShareBasedCompensationAwardTrancheTwoMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2025-01-012025-12-310001493225us-gaap:RestrictedStockUnitsRSUMemberus-gaap:ShareBasedCompensationAwardTrancheThreeMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2025-01-012025-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMemberus-gaap:PerformanceSharesMember2025-01-012025-12-310001493225us-gaap:PerformanceSharesMembersrt:MinimumMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2025-01-012025-12-310001493225us-gaap:PerformanceSharesMembersrt:MaximumMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2025-01-012025-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMemberus-gaap:RestrictedStockUnitsRSUMember2024-01-012024-12-310001493225us-gaap:RestrictedStockUnitsRSUMemberus-gaap:ShareBasedCompensationAwardTrancheOneMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2024-01-012024-12-310001493225us-gaap:RestrictedStockUnitsRSUMemberus-gaap:ShareBasedCompensationAwardTrancheTwoMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2024-01-012024-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMemberus-gaap:PerformanceSharesMember2024-01-012024-12-310001493225us-gaap:PerformanceSharesMembersrt:MinimumMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2024-01-012024-12-310001493225us-gaap:PerformanceSharesMembersrt:MaximumMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2024-01-012024-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMemberus-gaap:RestrictedStockUnitsRSUMember2023-01-012023-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMemberus-gaap:RestrictedStockUnitsRSUMember2023-08-012023-08-310001493225us-gaap:RestrictedStockUnitsRSUMemberus-gaap:ShareBasedCompensationAwardTrancheOneMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2023-01-012023-12-310001493225us-gaap:RestrictedStockUnitsRSUMemberus-gaap:ShareBasedCompensationAwardTrancheTwoMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2023-01-012023-12-310001493225nfbk:TwoThousandNineteenEquityIncentivePlanMemberus-gaap:PerformanceSharesMember2023-01-012023-12-310001493225us-gaap:PerformanceSharesMembersrt:MinimumMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2023-01-012023-12-310001493225us-gaap:PerformanceSharesMembersrt:MaximumMembernfbk:TwoThousandNineteenEquityIncentivePlanMember2023-01-012023-12-310001493225us-gaap:RestrictedStockUnitsRSUMember2023-12-310001493225us-gaap:PerformanceSharesMember2023-12-310001493225us-gaap:RestrictedStockUnitsRSUMember2024-01-012024-12-310001493225us-gaap:PerformanceSharesMember2024-01-012024-12-310001493225us-gaap:RestrictedStockUnitsRSUMember2024-12-310001493225us-gaap:PerformanceSharesMember2024-12-310001493225us-gaap:RestrictedStockUnitsRSUMember2025-01-012025-12-310001493225us-gaap:PerformanceSharesMember2025-01-012025-12-310001493225us-gaap:RestrictedStockUnitsRSUMember2025-12-310001493225us-gaap:PerformanceSharesMember2025-12-310001493225us-gaap:RestrictedStockMember2025-12-310001493225us-gaap:RestrictedStockMember2025-01-012025-12-310001493225us-gaap:CommitmentsToExtendCreditMember2025-12-310001493225us-gaap:CommitmentsToExtendCreditMember2024-12-310001493225us-gaap:UnusedLinesOfCreditMember2025-12-310001493225us-gaap:UnusedLinesOfCreditMember2024-12-310001493225us-gaap:StandbyLettersOfCreditMember2025-12-310001493225us-gaap:StandbyLettersOfCreditMember2024-12-310001493225srt:SubsidiariesMember2025-12-310001493225srt:SubsidiariesMember2024-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2025-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMemberus-gaap:FairValueMeasurementsRecurringMember2025-12-310001493225nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMemberus-gaap:FairValueMeasurementsRecurringMember2025-12-310001493225nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225us-gaap:MortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2025-12-310001493225us-gaap:MortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225us-gaap:MortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225us-gaap:MortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2025-12-310001493225us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225us-gaap:CorporateBondSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2025-12-310001493225us-gaap:CorporateBondSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225us-gaap:CorporateBondSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225us-gaap:CorporateBondSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225us-gaap:OtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2025-12-310001493225us-gaap:OtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225us-gaap:OtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225us-gaap:OtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225us-gaap:FairValueMeasurementsRecurringMember2025-12-310001493225us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:CommercialLoanMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:CommercialLoanMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:CommercialLoanMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:CommercialLoanMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMembersrt:MultifamilyMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Membersrt:MultifamilyMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Membersrt:MultifamilyMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Membersrt:MultifamilyMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225us-gaap:FairValueMeasurementsNonrecurringMember2025-12-310001493225us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2024-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMemberus-gaap:FairValueMeasurementsRecurringMember2024-12-310001493225nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMemberus-gaap:FairValueMeasurementsRecurringMember2024-12-310001493225nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225us-gaap:MortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2024-12-310001493225us-gaap:MortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225us-gaap:MortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225us-gaap:MortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2024-12-310001493225us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225us-gaap:CorporateBondSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2024-12-310001493225us-gaap:CorporateBondSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225us-gaap:CorporateBondSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225us-gaap:CorporateBondSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225us-gaap:OtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2024-12-310001493225us-gaap:OtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225us-gaap:OtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225us-gaap:OtherDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225us-gaap:FairValueMeasurementsRecurringMember2024-12-310001493225us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:CommercialLoanMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:CommercialLoanMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:CommercialLoanMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:CommercialLoanMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMembersrt:MultifamilyMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Membersrt:MultifamilyMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Membersrt:MultifamilyMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Membersrt:MultifamilyMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:HomeEquityMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:HomeEquityMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:HomeEquityMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:HomeEquityMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225nfbk:RealEstatePortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMember2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225nfbk:CommercialAndIndustrialPortfolioSegmentMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225us-gaap:FairValueMeasurementsNonrecurringMember2024-12-310001493225us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225us-gaap:CommercialLoanMember2025-12-310001493225us-gaap:CommercialLoanMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MinimumMembernfbk:MeasurementInputAdjustmentsToSellingCostMember2025-12-310001493225us-gaap:CommercialLoanMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MaximumMembernfbk:MeasurementInputAdjustmentsToSellingCostMember2025-12-310001493225srt:MultifamilyMember2025-12-310001493225srt:MultifamilyMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MinimumMembernfbk:MeasurementInputAdjustmentsToSellingCostMember2025-12-310001493225srt:MultifamilyMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MaximumMembernfbk:MeasurementInputAdjustmentsToSellingCostMember2025-12-310001493225nfbk:CommercialAndIndustrialLoansMember2025-12-310001493225nfbk:CommercialAndIndustrialLoansMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:MeasurementInputDiscountRateMember2025-12-310001493225us-gaap:CommercialLoanMember2024-12-310001493225us-gaap:CommercialLoanMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MinimumMembernfbk:MeasurementInputAdjustmentsToSellingCostMember2024-12-310001493225us-gaap:CommercialLoanMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MaximumMembernfbk:MeasurementInputAdjustmentsToSellingCostMember2024-12-310001493225srt:MultifamilyMember2024-12-310001493225srt:MultifamilyMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MinimumMembernfbk:MeasurementInputAdjustmentsToSellingCostMember2024-12-310001493225srt:MultifamilyMemberus-gaap:MarketApproachValuationTechniqueMembersrt:MaximumMembernfbk:MeasurementInputAdjustmentsToSellingCostMember2024-12-310001493225us-gaap:HomeEquityMember2024-12-310001493225us-gaap:HomeEquityMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:MeasurementInputDiscountRateMember2024-12-310001493225nfbk:CommercialAndIndustrialLoansMember2024-12-310001493225nfbk:CommercialAndIndustrialLoansMemberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MinimumMemberus-gaap:MeasurementInputDiscountRateMember2024-12-310001493225nfbk:CommercialAndIndustrialLoansMemberus-gaap:ValuationTechniqueDiscountedCashFlowMembersrt:MaximumMemberus-gaap:MeasurementInputDiscountRateMember2024-12-310001493225us-gaap:CarryingReportedAmountFairValueDisclosureMember2025-12-310001493225us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel1Member2025-12-310001493225us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2025-12-310001493225us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel3Member2025-12-310001493225us-gaap:EstimateOfFairValueFairValueDisclosureMember2025-12-310001493225us-gaap:CarryingReportedAmountFairValueDisclosureMember2024-12-310001493225us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel1Member2024-12-310001493225us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2024-12-310001493225us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel3Member2024-12-310001493225us-gaap:EstimateOfFairValueFairValueDisclosureMember2024-12-3100014932252023-06-0100014932252023-11-0700014932252024-04-2400014932252024-06-1400014932252025-02-2600014932252025-04-230001493225nfbk:StockRepurchasesRelatedToEmployeeStockPlansMember2025-12-310001493225nfbk:A2024StockRepurchaseProgramMember2025-01-012025-12-310001493225nfbk:A2024StockRepurchaseProgramMember2024-01-012024-12-310001493225nfbk:A2023StockRepurchaseProgramMember2023-01-012023-12-310001493225nfbk:StockRepurchasesRelatedToEmployeeStockPlansMember2025-01-012025-12-310001493225nfbk:StockRepurchasesRelatedToEmployeeStockPlansMember2024-01-012024-12-310001493225nfbk:StockRepurchasesRelatedToEmployeeStockPlansMember2023-01-012023-12-310001493225us-gaap:BankServicingMember2025-01-012025-12-310001493225us-gaap:BankServicingMember2024-01-012024-12-310001493225us-gaap:BankServicingMember2023-01-012023-12-310001493225us-gaap:DebitCardMember2025-01-012025-12-310001493225us-gaap:DebitCardMember2024-01-012024-12-310001493225us-gaap:DebitCardMember2023-01-012023-12-310001493225us-gaap:InvestmentAdviceMember2025-01-012025-12-310001493225us-gaap:InvestmentAdviceMember2024-01-012024-12-310001493225us-gaap:InvestmentAdviceMember2023-01-012023-12-310001493225us-gaap:InterestRateSwapMember2025-12-310001493225us-gaap:InterestRateSwapMember2024-12-310001493225us-gaap:InterestRateSwapMember2025-01-012025-12-310001493225us-gaap:InterestRateSwapMember2024-01-012024-12-310001493225us-gaap:OtherAssetsMember2025-12-310001493225us-gaap:OtherAssetsMember2024-12-310001493225us-gaap:OtherLiabilitiesMember2025-12-310001493225us-gaap:OtherLiabilitiesMember2024-12-310001493225srt:ParentCompanyMember2025-01-012025-12-310001493225srt:ParentCompanyMember2025-12-310001493225srt:ParentCompanyMember2024-12-310001493225srt:ParentCompanyMember2024-01-012024-12-310001493225srt:ParentCompanyMember2023-01-012023-12-310001493225srt:ParentCompanyMember2023-12-310001493225srt:ParentCompanyMember2022-12-310001493225nfbk:ReportableSegmentMember2025-01-012025-12-310001493225nfbk:ReportableSegmentMember2024-01-012024-12-310001493225nfbk:ReportableSegmentMember2023-01-012023-12-310001493225nfbk:ReportableSegmentMember2025-12-310001493225nfbk:ReportableSegmentMember2024-12-310001493225nfbk:ReportableSegmentMember2023-12-310001493225nfbk:ColumbiaFinancialInc.MergerMembernfbk:ColumbiaFinancialInc.Memberus-gaap:SubsequentEventMember2026-01-310001493225nfbk:ColumbiaFinancialInc.MergerMembernfbk:LessThanTwoPointThreeBillionValuationMembernfbk:ColumbiaFinancialInc.Memberus-gaap:SubsequentEventMember2026-01-310001493225nfbk:ColumbiaFinancialInc.MergerMemberus-gaap:SubsequentEventMembernfbk:GreaterThanOrEqualToTwoPointThreeBillionAndLessThanTwoPointSixBillionValuationMembersrt:MinimumMembernfbk:ColumbiaFinancialInc.Member2026-01-310001493225nfbk:ColumbiaFinancialInc.MergerMemberus-gaap:SubsequentEventMembernfbk:GreaterThanOrEqualToTwoPointThreeBillionAndLessThanTwoPointSixBillionValuationMembersrt:MaximumMembernfbk:ColumbiaFinancialInc.Member2026-01-310001493225nfbk:ColumbiaFinancialInc.MergerMembernfbk:GreaterThanOrEqualToTwoPointThreeBillionAndLessThanTwoPointSixBillionValuationMembernfbk:ColumbiaFinancialInc.Memberus-gaap:SubsequentEventMember2026-01-310001493225nfbk:ColumbiaFinancialInc.MergerMembernfbk:GreaterThanTwoPointSixBillionValuationMembernfbk:ColumbiaFinancialInc.Memberus-gaap:SubsequentEventMember2026-01-3100014932252025-10-012025-12-31

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K


☒			Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
			For the Fiscal Year Ended December 31, 2025


☐			Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
			For the transition period from _______________ to _________________

Commission File No. 001-35791

Northfield Bancorp, Inc.

(Exact name of registrant as specified in its charter)


Delaware						80-0882592
(State or other jurisdiction of						(I.R.S. Employer
incorporation or organization)						Identification No.)

581 Main Street,

Woodbridge,

New Jersey

07095

(Address of principal executive offices)

(Zip Code)

(732) 499-7200

(Registrant’s telephone number, including area code)

Securities Registered Pursuant to Section 12(b) of the Act:


Title of Each Class	Trading Symbol	Name of Each Exchange on Which Registered
Common Stock, par value $0.01 per share	NFBK	The NASDAQ Stock Market, LLC

Securities Registered Pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐ No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer

☐

Accelerated filer

☒

Non-accelerated filer

☐

Smaller reporting company

☐

Emerging growth company

☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ¨

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No ☒

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant, computed by reference to price at which the common equity was last sold on June 30, 2025 was $437.7 million.

As of February 27, 2026, there were 41,763,997 outstanding shares of the registrant’s common stock.

DOCUMENTS INCORPORATED BY REFERENCE

Certain portions of the registrant’s Definitive Proxy Statement for the 2026 Annual Meeting of the Stockholders to be held May 27, 2026, will be incorporated by reference in Part III. The registrant's 2026 Definitive Proxy Statement will be filed within 120 days of December 31, 2025.

NORTHFIELD BANCORP, INC.

ANNUAL REPORT ON FORM 10-K

TABLE OF CONTENTS


	Part I.	Page

Item 1.	Business	1
Item 1A.	Risk Factors	31
Item 1B.	Unresolved Staff Comments	45
Item 1C.	Cybersecurity	45
Item 2.	Properties	47
Item 3.	Legal Proceedings	47
Item 4.	Mine Safety Disclosures	47

	Part II.

Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	48
Item 6.	[Reserved]	50
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	50
Item 7A.	Quantitative and Qualitative Disclosures about Market Risk	69
Item 8.	Financial Statements and Supplementary Data	69
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	131
Item 9A.	Controls and Procedures	131
Item 9B.	Other Information	131
Item 9C.	Disclosure Regarding Foreign Jurisdictions that Prevent Inspections	131

	Part III.

Item 10.	Directors, Executive Officers and Corporate Governance	132
Item 11.	Executive Compensation	132
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	132
Item 13.	Certain Relationships and Related Transactions, and Director Independence	132
Item 14.	Principal Accountant Fees and Services	132

	Part IV.

Item 15.	Exhibits and Financial Statement Schedules	133
Item 16.	Form 10-K Summary	135
Signatures		136

PART I

ITEM 1. BUSINESS

Forward-Looking Statements

This Annual Report may contain certain “forward-looking statements,” which can be identified by the use of such words as “estimate,” “project,” “believe,” “intend,” “anticipate,” “plan,” “seek,” “expect,” “could,” “may,” “should,” “will,” and words of similar meaning. These forward-looking statements include, but are not limited to:

•statements of our goals, intentions, and expectations;

•statements regarding our business plans, prospects, growth and operating strategies;

•statements regarding the quality of our loan and investment portfolios;

•statements about our performance, financial condition and liquidity; and

•estimates of our risks and future costs and benefits.

These forward-looking statements are based on current beliefs and expectations of our management and are subject to significant business, economic and competitive uncertainties, and contingencies, many of which are beyond our control. In addition, these forward-looking statements are subject to assumptions with respect to future business strategies and decisions that are subject to change.

The following factors, among others, could cause actual results to differ materially from the anticipated results or other expectations expressed in the forward-looking statements:

•general economic conditions, internationally, nationally, or in our market areas, including inflationary pressures and/or recessionary conditions, employment prospects, supply chain issues, fluctuations in residential and commercial real estate values and market conditions, military conflict, geopolitical risks, and downgrades of the U.S. credit rating;

•competition among depository and other financial institutions, including with respect to fees and interest rates;

•changes in the interest rate environment that reduce our margins and yields, or reduce the market value of our assets, including the fair value of financial instruments, or reduce our ability to originate loans;

•adverse changes in the securities or credit markets, and changes in investor sentiment;

•changes in laws, tax policies, government regulations or policies affecting financial institutions;

•changes in regulatory fees, assessments, and capital requirements;

•the imposition of tariffs or other domestic or international governmental policies and retaliatory responses;

•changes in the quality and/or composition of our loan and securities portfolios, changes in prepayment speeds, charge-offs and in the estimates or methodology used to determine our allowance for credit losses;

•changes in the size and composition of our deposit portfolio and the percentage of uninsured deposits in the portfolio;

•our ability to manage our liquidity, including unanticipated changes in our liquidity position, changes in our access to or the cost of funding, and our ability to secure alternate funding sources;

•our ability to enter new markets successfully and capitalize on growth opportunities;

•our ability to successfully integrate acquired entities;

•changes in consumer demand, spending, borrowing and savings habits;

•changes in accounting policies and practices, as may be adopted by the bank regulatory agencies, the Financial Accounting Standards Board (the “FASB”), the Securities and Exchange Commission (the “SEC”), or the Public Company Accounting Oversight Board;

•cyber-attacks and fraud risks, computer viruses and other technological risks that may breach the security of our website or other systems (including critical third-parties) to obtain unauthorized access to confidential information and destroy data or disable our systems;

•the failure to maintain current technologies and to successfully implement future technological enhancements;

•changes in investor sentiment with respect to financial institutions and their holding companies;

•changes in our organization, compensation structure, and benefit plans;

•our ability to attract and/or retain key employees;

•changes in the value of our goodwill or other intangible assets;

•changes in the level of government support for housing finance;

•changes in monetary or fiscal policies of the U.S. Government, including policies of the U.S. Treasury and the Federal Reserve Board (the “FRB”);

•the effect of any extended U.S. government shutdown;

•the ability of third-party providers to perform their obligations to us;

•the effects of natural or man-made disasters, climate change, severe weather conditions, or other extraordinary events beyond our control, and our ability to effectively respond to and manage these disruptions;

•changes in our ability to continue to pay dividends, either at current rates or at all;

•operational or risk management failures by us or critical third parties;

•increased operational risks resulting from remote work;

•negative outcomes from claims or litigation;

•our ability to manage our reputation risks;

•our ability to timely and effectively implement our strategic initiatives;

•the disruption to local, regional, national and global economic activity caused by the spread of infectious disease, epidemics, pandemics, or other extraordinary events that are beyond our control and could impact our growth, operations, earnings and asset quality;

•changes in the financial condition, results of operations, or future prospects of issuers of securities that we own;

•any unexpected delay in closing the merger with Columbia Financial, Inc.;

•the possibility that the merger does not close when expected or at all because required regulatory, stockholder or other approvals and other conditions to closing are not received or satisfied on a timely basis or at all (including the risk that such approvals may result in the imposition of conditions that could adversely affect the combined company or the expected benefits of the proposed merger);

•the risk that the benefits from the merger may not be fully realized or may take longer to realize than expected;

•disruption to our business as a result of the announcement and pendency of the merger;

•the costs associated with the anticipated length of time of the pendency of the merger, including the restrictions contained in the definitive merger agreement on our ability to operate its business outside the ordinary course during the pendency of the merger;

•reputational risk and potential adverse reactions of the merger by our customers, employees, vendors, contractors or other business partners; and

•the other factors set forth in “Item 1A. Risk Factors” contained in this Annual Report on Form 10-K for the year ended December 31, 2025 and in our subsequent filings with the SEC.

Because of these and other uncertainties, our actual future results may be materially different from the results indicated by these forward-looking statements. Accordingly, you should not place undue reliance on such statements. Except as required by law, we disclaim any intention or obligation to update or revise any forward-looking statements after the date of this Form 10-K, whether as a result of new information, future events or otherwise.

Northfield Bancorp, Inc.

Northfield Bancorp, Inc., a Delaware corporation (“Northfield Bancorp” or the “Company”), was organized in 2010 and is the holding company for Northfield Bank (the “Bank”). Northfield Bancorp uses the support staff and offices of the Bank and reimburses Northfield Bank for these services. If Northfield Bancorp expands or changes its business, it may hire its own employees. In the future, we may pursue other business activities, including mergers and acquisitions, investment alternatives and diversification of operations.

Northfield Bancorp is subject to comprehensive regulation and examination by the Board of Governors of the Federal Reserve System.

Northfield Bancorp’s main office is located at 581 Main Street, Suite 810, Woodbridge, New Jersey 07095, and its telephone number at this address is (732) 499-7200. The Company's filings with the SEC, including copies of annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to these filings, if any, are available, free of charge, as soon as practicable after they are filed with the SEC under the Investor Relations section of the Company's website, www.eNorthfield.com and on the SEC website, www.sec.gov. Information on these websites is not and should not be considered to be a part of this Annual Report on Form 10-K.

Northfield Bank

Northfield Bank was organized in 1887 and is a federally chartered savings bank. Northfield Bank conducts business from its operations center located in Woodbridge, New Jersey, its home office located at a branch in Staten Island, New York, and its 36 additional branch offices located in Staten Island, Brooklyn, and in Hunterdon, Mercer, Middlesex, and Union counties in New Jersey. Northfield Bank also offers select loan and deposit products through the internet.

Northfield Bank’s principal business consists of originating multifamily and commercial real estate loans, construction and land loans, commercial and industrial loans, one-to-four family residential loans and home equity loans and lines of credit. From time to time Northfield Bank will also purchase loan participations and pools of loans. Northfield Bank also purchases investment securities, including mortgage-backed securities and corporate bonds, and, to a lesser extent, deposit funds in other financial institutions, including the Federal Reserve Bank of New York (the “Federal Reserve Bank”) and the Federal Home Loan Bank (“FHLB”) of New York (“FHLBNY”). Northfield Bank offers a variety of deposit accounts, including transaction, money market savings, certificates of deposit, passbook and statement savings deposit accounts, which are Northfield Bank’s primary source of funds for its lending and investing activities. Northfield Bank also borrows funds, principally through FHLBNY advances and repurchase agreements with brokers. Northfield Bank owns 100% of NSB Services Corp., which, in turn, owns 100% of the voting common stock of a real estate investment trust, NSB Realty Trust, which holds primarily mortgage loans.

Northfield Bank is subject to comprehensive regulation and examination by the Office of the Comptroller of the Currency (the “OCC”).

Northfield Bank’s main office is located at 4142 Hylan Boulevard, Staten Island, New York 10308, and its telephone number at this address is (718) 448-1000. Its website address is www.eNorthfield.com. Information on this website is not and should not be considered to be a part of this Annual Report on Form 10-K.

Merger

On January 31, 2026, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Columbia Financial, Inc., a Delaware corporation (“Columbia Financial”), Columbia Financial, Inc., a newly-formed Maryland corporation (the “Holding Company”), and Columbia Bank MHC, the parent mutual holding company of Columbia Financial (the “MHC”). Pursuant to the terms of the Merger Agreement and subject to the conditions set forth therein, immediately following the completion of the mutual-to-stock conversion of the MHC (the “Conversion”), the Company will merge with and into the Holding Company (the “Merger”), with the Holding Company continuing as the surviving corporation. Immediately following the completion of the Merger, the Holding Company will cause Northfield Bank to merge with and into Columbia Bank, the subsidiary of Columbia Financial, with Columbia Bank continuing as the surviving institution.

Upon the terms and subject to the conditions set forth in the Merger Agreement, at the effective time of the Merger (the “Effective Time”), each share of the Company’s common stock, issued and outstanding immediately before the Effective Time, other than certain shares held by Columbia Financial, the Holding Company, the MHC or the Company, will be converted, at the election of the holder, into the right to receive either shares of Holding Company common stock or cash (the “Cash Consideration”), as follows: (i) if the final appraised pro forma market value of the Holding Company, after giving effect to the merger with the Company, as determined by an independent appraiser (such appraisal, the “Independent Valuation”), immediately prior to the completion of the Conversion (the “Final Independent Appraisal”) is less than $2.3 billion, 1.425 shares of Holding Company common stock (the “Merger Exchange Ratio”) or $14.25 in cash (the “Per Share Cash Consideration”); (ii) if the Final Independent Valuation is equal to or greater than $2.3 billion and less than $2.6 billion, the Merger Exchange Ratio will be increased to 1.450 shares of Holding Company common stock and the Per Share Cash Consideration will be increased to $14.50; or (iii) if the Final Independent Valuation is greater than $2.6 billion, the Merger Exchange Ratio will be increased to 1.465 shares of Holding Company common stock and the Per Share Cash Consideration will be increased to $14.65. No more than 30% of the shares of the Company’s common stock issued and outstanding as of the Effective Time (excluding shares of common stock to be canceled as provided the Merger Agreement) will be converted into the aggregate Cash Consideration.

The Merger remains subject to the receipt of certain depositor, stockholder and regulatory approvals and the satisfaction of other customary closing conditions. The Merger is expected to close early in the third quarter of 2026.

The foregoing description of the proposed Merger and the Merger Agreement is not complete and is qualified in its entirety by reference to the full text of the Merger Agreement, which was filed as Exhibit 2.1 to the Company's Current Report on Form 8-K, dated January 31, 2026, filed with the Securities and Exchange Commission on February 2, 2026.

Market Area and Competition

Northfield Bank has been in business since 1887, offering a variety of financial products and services to meet the needs of the communities we serve. Our commercial and retail banking network consists of multiple delivery channels, including full-service banking offices, automated teller machines, telephone and internet banking capabilities, mobile banking and remote deposit capture. In addition, Northfield Bank offers ACH and wire transfers, cash management, positive pay, and remote deposit capture services for our commercial customers. We consider our competitive products and pricing, branch network, customer service, local decision making and financial position, as our major strengths in attracting and retaining customers in our market areas.

We face intense competition in our market areas both in making loans and attracting deposits. Our market areas have a high concentration of financial institutions, including large money center and regional banks, non-traditional banks and lenders, community banks, and credit unions. We face additional competition for deposits from money market funds, brokerage firms, mutual funds, and insurance companies. Some of our competitors offer products and services that we do not offer, such as trust services and private banking. In addition, competition has further intensified as a result of advances in technology and product delivery systems, and we face strong competition from financial technology (“Fintech”) companies that provide web-based solutions in lieu of traditional retail banking services and products. Fintech companies tend to have stronger operating efficiencies and less regulatory burdens than traditional banks.

Our deposit sources are primarily concentrated in the communities surrounding our branch offices in Richmond (Staten Island) and Kings (Brooklyn) counties in New York, and Hunterdon, Mercer, Middlesex and Union counties in New Jersey. As of June 30, 2025 (the latest date for which information is publicly available), we ranked sixth in deposit market share out of 16 institutions for Federal Deposit Insurance Corporation (the “FDIC”) insured institutions in Staten Island, New York with a 9.64% market share. As of that date, we ranked 17th in deposit market share out of 40 institutions with a 0.65% deposit market share in Brooklyn, New York, and we ranked 12th in deposit market share out of 50 financial institutions with a deposit market share of 1.75% in Hunterdon, Mercer, Middlesex and Union counties in New Jersey.

The following table sets forth the unemployment rates for the communities we serve and the national average for the last five years, as published by the U.S. Bureau of Labor Statistics:


	Unemployment Rate at December 31,
	2025		2024		2023		2022		2021
Hunterdon County, NJ	3.6	%	3.2	%	3.5	%	2.3	%	3.5	%
Middlesex County, NJ	4.4		3.9		4.1		2.7		4.3
Mercer County, NJ	4.5		3.7		3.7		2.5		3.8
Union County, NJ	4.7		4.5		4.7		3.3		5.3
Richmond County, NY	4.8		4.6		4.6		5.0		7.1
Kings County, NY	5.5		5.5		5.4		5.5		8.1
National Average	4.4		4.1		3.7		3.5		3.9

The following table sets forth median household income at December 31, 2025 and 2024, for the communities we serve and the national average, as published by the U.S. Census Bureau:


	Median Household Income
	at December 31,
	2025		2024
Hunterdon County, NJ	$	145,344	$	129,123
Middlesex County, NJ	116,859		106,162
Mercer County, NJ	101,310		92,531
Union County, NJ	113,069		96,357
Richmond County, NY	101,853		92,376
Kings County, NY	85,915		74,085
National Average	86,867		75,874

Lending Activities

Our principal lending activity was historically the origination of multifamily real estate loans, but is now the origination of commercial and industrial and owner-occupied commercial real estate loans, and, to a lesser extent, multifamily and other commercial real estate loans (typically on office, retail, and industrial properties), in New York, New Jersey, and eastern Pennsylvania. We also originate one-to-four family residential real estate loans, construction and land loans, and home equity loans and lines of credit.

Loan Originations, Purchases and Sales, Participations, and Servicing. All loans we originate are underwritten pursuant to our policies and procedures or are approved as exceptions to our policies and procedures. Our ability to originate fixed- or adjustable-rate loans is dependent on the relative demand for such loans, which is affected by various factors, including current and anticipated future market interest rates. A significant portion of our multifamily real estate loans and other commercial real estate loans are generated with the use of third-party loan brokers. Our home equity loans and lines of credit typically are generated through digital and social media advertising, referrals from branch personnel, direct mail advertisements and online applications through our website. Our commercial and industrial loans typically are generated through our loan and business development officers and referrals from other professional contacts including accountants, attorneys and investment advisors. We typically retain in our portfolio all loans we originate and generally only sell non-performing loans, the Small Business Administration (“SBA”) guaranteed portion of loans and one-to-four family residential loans. We also offer interest rate swap contracts to qualified commercial borrowers.

From time-to-time, we may sell or purchase participation interests in individual loans (in addition to loans we acquire in assisted transactions, mergers or acquisitions, and pool purchases). We underwrite our participation interest in the loans that we purchase according to our underwriting criteria and procedures. At December 31, 2025, we had $68.8 million of loan participations that we purchased (where we are not the primary lender). Additionally, there were $100.2 million of loan participations that we sold (where we are the primary lender). All loan participations are secured by real estate and adhere to our loan policies. At December 31, 2025, all participation loans were performing in accordance with their terms.

Loan Approval Procedures and Authority. Our lending activities follow written, non-discriminatory, underwriting standards approved by our Board of Directors. The loan approval process is intended to assess the borrower’s ability to repay the loan and the value of the collateral that will secure the loan, if any. To assess the borrower’s ability to repay, we review the borrower’s income and credit history, and information on the historical and projected income and expenses of the borrower.

In underwriting a loan secured by real property, we require an appraisal of the property by an independent licensed or certified appraiser approved by our Board of Directors. For commercial real estate loans of $500,000 or less, we generally obtain an evaluation from an independent firm. The appraisals and evaluations of multifamily and other commercial real estate properties are also reviewed by an independent appraisal management firm. We, along with the assistance of a third-party inspector, review and inspect properties before disbursement of funds during the term of a construction loan. Generally, management obtains updated appraisals when a loan is deemed impaired. These appraisals may be more limited than those prepared for the underwriting of a new loan. In addition, when we acquire other real estate owned, we generally obtain a current appraisal to substantiate the net carrying value of the asset.

The Board of Directors maintains a Loan Committee consisting of bank directors to: periodically review and recommend for approval our policies related to lending as prepared by management; approve or reject loan applicants meeting certain criteria; and monitor loan quality, including concentrations and certain other aspects of our lending functions, as applicable. Certain Northfield Bank officers, at levels beginning with vice president, have individual lending authority that is approved by the Board of Directors.

Loan Portfolio Composition. The following table sets forth the composition of our loan portfolio, by type of loan, at the dates indicated.


	At December 31,
	2025				2024				2023
	Amount		Percent		Amount		Percent		Amount		Percent
	(Dollars in thousands)
Total loans:
Real estate loans:
Multifamily	$	2,361,365	61.23	%	$	2,597,484	64.59	%	$	2,750,996	65.44	%
Commercial mortgage	911,390		23.63		889,801		22.12		929,595		22.11
One-to-four family residential	165,100		4.28		150,217		3.73		160,824		3.83
Home equity and lines of credit	198,557		5.15		174,062		4.33		163,520		3.89
Construction and land	44,522		1.15		35,897		0.89		30,967		0.74
Commercial and industrial loans	166,167		4.31		163,425		4.06		155,268		3.69
Other loans	1,409		0.04		2,165		0.05		2,585		0.06
Total loans originated	3,848,510		99.79		4,013,051		99.77		4,193,755		99.76
Purchased credit-deteriorated (“PCD”) loans	8,263		0.21		9,173		0.23		9,899		0.24
Total loans	$	3,856,773	100.00	%	$	4,022,224	100.00	%	$	4,203,654	100.00	%
Other items:

Allowance for credit losses	(38,144)				(35,183)				(37,535)
Net loans held-for-investment	$	3,818,629			$	3,987,041			$	4,166,119

Loan Portfolio Maturities. The following tables summarize the scheduled repayments of our loan portfolio and weighted average contractual rate by loan type at December 31, 2025. Demand loans (loans having no stated repayment schedule or maturity) and overdraft loans are reported as being due in the year ending December 31, 2026. Maturities are based on the final contractual payment date and do not reflect the effect of prepayments, repricing and scheduled principal amortization.


	Loans Held-For-Investment
	Multifamily				Commercial Real Estate				One-to-Four Family Residential				Home Equity and Lines of Credit
	Amount		Weighted Average Rate		Amount		Weighted Average Rate		Amount		Weighted Average Rate		Amount		Weighted Average Rate
	(Dollars in thousands)
Due:
One year or less	$	1,588	4.94	%	$	13,454	5.89	%	$	523	6.79	%	$	791	5.82	%
After one year through five years	38,372		6.05	%	82,074		5.84	%	6,297		4.88	%	7,037		5.34	%
After five years through fifteen years	157,159		5.44	%	227,054		5.69	%	20,728		5.61	%	45,729		5.13	%
After fifteen years	2,164,246		4.13	%	588,808		4.99	%	137,552		5.40	%	145,000		6.39	%
Total	$	2,361,365	4.25	%	$	911,390	5.25	%	$	165,100	5.41	%	$	198,557	6.06	%

	Construction and Land				Commercial and Industrial				Other				PCD
	Amount		Weighted Average Rate		Amount		Weighted Average Rate		Amount (1)		Weighted Average Rate		Amount		Weighted Average Rate (2)
	(Dollars in thousands)
Due:
One year or less	$	18,284	6.86	%	$	70,292	7.71	%	$	1,406	0.33	%	$	2,543	17.20	%
After one year through five years	20,843		7.80	%	70,884		7.31	%	3		5.87	%	1,186		9.14	%
After five years through fifteen years	4,141		3.83	%	24,145		5.67	%	—		—	%	4,313		16.05	%
After fifteen years	1,254		4.25	%	846		6.43	%	—		—	%	221		4.74	%
Total	$	44,522	6.94	%	$	166,167	7.24	%	$	1,409	0.34	%	$	8,263	15.11	%

(1) Other loans of $1.4 million due within one year includes $1.2 million of negative escrow and $174,000 of overdraft adjustments.

(2) Represents estimated accretable yield.


	Total Loans
	Amount		Weighted Average Rate

Due:
One year or less	$	108,881	7.41	%
After one year through five years	226,696		6.49	%
After five years through fifteen years	483,269		5.63	%
After fifteen years	3,037,927		4.46	%
Total	$	3,856,773	4.81	%

The following table summarizes fixed and adjustable-rate loans at December 31, 2025, that are contractually due after December 31, 2026:


	Due After December 31, 2026
	Fixed Rate		Adjustable Rate		Total
	(Dollars in thousands)
Real estate loans:
Multifamily	$	51,157	$	2,308,620	$	2,359,777
Commercial mortgage	28,043		869,893		897,936
One-to-four family residential	94,927		69,650		164,577
Construction and land	—		26,238		26,238
Home equity and lines of credit	91,560		106,206		197,766
Commercial and industrial loans	48,100		47,775		95,875
Other loans	3		—		3
PCD loans	2,436		3,284		5,720
Total loans	$	316,226	$	3,431,666	$	3,747,892

At December 31, 2025, the Company had $3.04 billion in loans due to mature in 2041 and beyond, of which $125.9 million, or 4.14%, are fixed-rate loans.

Multifamily Real Estate Loans. Loans secured by multifamily properties totaled approximately $2.36 billion, or 61.2% of our total loan portfolio, at December 31, 2025. We include in this category properties having more than four residential units and a business or businesses where the majority of space is utilized for residential purposes, which we refer to as mixed-use. At December 31, 2025, we had 1,075 multifamily real estate loans, with an average loan balance of approximately $2.2 million, although there are a large number of loans with balances substantially greater than this average. At December 31, 2025, our largest multifamily real estate loan had a principal balance of $29.0 million, was secured by a garden-style apartment complex located in Essex County, New Jersey, and was performing in accordance with its original contractual terms. Substantially all of our multifamily real estate loans are secured by properties located in our primary market areas and eastern Pennsylvania.

Our multifamily real estate loans typically amortize over 30 years with negotiated interest rates that adjust after an initial five-, seven-, or 10-year period, and every five years thereafter. Adjustable-rate loan originations are generally tied to a specifically identified market rate index. We also originate, to a lesser extent, 10- to 15-year fixed-rate, fully amortizing loans. In general, our multifamily real estate loans have interest rate floors equal to the interest rate on the date the loan is originated, and have prepayment penalties should the loan be prepaid during the initial five-, seven-, or 10-year term. In addition, our multifamily loans may contain an initial interest-only period which typically does not exceed two years; however, these loans are underwritten on a fully amortizing basis.

In underwriting multifamily real estate loans, we consider a number of factors, including the ratio of the projected net cash flows to the loan’s debt service requirement (generally requiring a minimum ratio of 120%, computed after deduction for a vacancy factor and property expenses we deem appropriate), the age and condition of the collateral, the financial resources and income of the sponsor, and the sponsor’s experience in owning or managing similar properties. Multifamily real estate loans generally are originated in amounts up to the lesser of 75% of the appraised value or the purchase price of the property securing the loan. Although a significant portion of our multifamily real estate loans are referred to us by third-party loan brokers, we underwrite all multifamily real estate loans in accordance with our underwriting standards. Due to competitor considerations, as is customary in our marketplace, we typically do not obtain personal guarantees of the principals on multifamily real estate loans, except when warranted.

In 2019, the New York State legislature passed the Housing Stability and Tenant Protection Act, impacting approximately one million rent-regulated apartment units. Among other things, the legislation: (i) curtails rent increases from material capital improvements and individual apartment improvements; (ii) all but eliminates the ability for apartments to exit rent regulation; (iii) does away with vacancy decontrol and high-income deregulation; and (iv) repealed the 20% vacancy bonus. At December 31, 2025, the Company has approximately $418.8 million in multifamily loans in New York with tenants that have some form of rent stabilization or rent control.

The following table summarizes our variable-interest multifamily loans by year of repricing (excluding PCD loans) at December 31, 2025:


	Amount		Weighted Average Rate
	(Dollars in thousands)


One year or less	$	347,847	3.55	%
After one year through five years	1,867,530		4.34	%
After five years through ten years	93,243		4.94	%

	$	2,308,620	4.25	%

Commercial Real Estate Loans. Commercial real estate loans (other than multifamily real estate loans) totaled $911.4 million, or 23.6% of our loan portfolio, as of December 31, 2025. At December 31, 2025, our commercial real estate loan portfolio consisted of 642 loans with an average loan balance of approximately $1.4 million, although there are a large number of loans with balances substantially greater than this average. At December 31, 2025, our largest commercial real estate loan had a principal balance of $86.4 million (net active principal balance of $28.8 million as we have a 33.3% participation interest), was secured by an office facility located in Staten Island, New York, and was performing in accordance with its original contractual terms. Substantially all of our commercial real estate loans are secured by properties located in our primary market areas.

Our commercial real estate loans typically amortize over 20 to 25 years with negotiated interest rates that adjust after an initial five-, seven-, or 10-year period, and every five years thereafter. Adjustable-rate loan originations are generally tied to a specifically identified market rate index. We also originate, to a lesser extent, 10- to 15-year fixed-rate, fully amortizing loans. In general, our commercial real estate loans have interest rate floors equal to the interest rate on the date the loan is originated, and generally have prepayment penalties if the loan is repaid in the initial five-, seven-, or 10-year term.

In underwriting commercial real estate loans, we generally lend up to the lesser of 75% of either the property’s appraised value or purchase price. We base our decision to lend primarily on the economic viability of the property and the creditworthiness of the borrower. In evaluating a proposed commercial real estate loan, we emphasize the ratio of the property’s projected net cash flows to the loan’s debt service requirement (generally requiring a minimum ratio of 125%, computed after deduction for a vacancy factor and property expenses we deem appropriate). Personal guarantees of the principals are typically obtained. Although a significant portion of our commercial real estate loans were referred to us by third-party loan brokers, we underwrite all commercial real estate loans in accordance with our underwriting standards.

The following table summarizes commercial mortgage real estate loans by property type and owner-occupied and non-owner occupied status as a percentage of the total commercial mortgage real estate portfolio as of December 31, 2025:


	December 31, 2025
	Concentration by Property Type				Percentage of Total
	Amount		Percent		Owner-Occupied		Non-Owner Occupied

Office buildings	$	174,694	19.2	%	7.3	%	11.9	%
Mixed use (majority of space is non-residential)	155,341		17.0		2.5		14.5
Retail	137,182		15.1		2.3		12.8
Warehousing	132,154		14.5		12.1		2.4
Healthcare facilities	74,800		8.2		5.4		2.8
Manufacturing	72,059		7.9		5.7		2.2
Accommodations (hotel/motel)	46,858		5.1		0.1		5.0
Services	44,757		4.9		3.6		1.3
Schools/daycare	15,247		1.7		1.6		0.1
Recreational	11,053		1.2		1.1		0.1
Restaurants	3,682		0.4		0.2		0.2
Other	43,563		4.8		2.3		2.5
	$	911,390	100.0	%	44.2	%	55.8	%

The Company obtains an appraisal of the real estate collateral securing a commercial real estate loan prior to originating the loan. The appraised value is used to calculate the ratio of the outstanding loan balance to the value of the real estate collateral, or loan-to-value ratio (“LTV”). The original appraisal is used to monitor the LTVs within the commercial real estate portfolio unless an updated appraisal is received, which may happen for a variety of reasons, including but not limited to payment delinquency, additional loan requests using the same collateral, and loan modifications.

The following table presents the ranges in the LTVs of our commercial mortgage loans at December 31, 2025:


LTV Range %	Number of Loans	Amount
		(Dollars in thousands)
0 - 25	189	$	70,760
>25 - 50	249	368,110
>50 - 60	102	197,733
>60 - 70	75	222,470
>70 - 80	22	46,683
>80 - 90	1	165
>90	4	5,469
Total commercial real estate loans	642	$	911,390

The following table summarizes the commercial real estate portfolio by geographic region in which the real estate collateral is located as a percentage of total commercial real estate loans as of December 31, 2025:


Geographic Region	Amount		Percent
	(Dollars in thousands)
New York	$	484,192	53	%
New Jersey	400,188		44	%
Pennsylvania and Other	27,010		3	%
Total commercial real estate loans	$	911,390	100	%

New York City Local Law 97 (“Local Law 97”) became effective on November 15, 2019. The law sets limits on the greenhouse gas emissions of both newly built and existing covered buildings. The law, which went into effect at the beginning of 2024, applies to both commercial and residential buildings over 25,000 square feet (or two more buildings on the same tax lot or governed by the same board of managers that together exceed 50,000 square feet). The buildings covered by Local Law 97 were required to file a report with the Department of Buildings by May 1, 2025 detailing their annual greenhouse gas emissions and then by May 1 of every year thereafter. An owner of a covered building who submits a report indicating that their building exceeded its annual building emissions limit will be liable for a civil penalty. Based on management’s assessment of our loan portfolio as of December 31, 2025, we believe that 30 loans will be considered covered buildings and will be affected by the ruling regarding Local Law 97 during the first stage of implementation, and we expect to be compliant in the first compliance period with no material financial impact on our covered portfolio. At December 31, 2025, the weighted average LTV ratio of these 30 loans was 55.2%. These loans had an aggregate book balance of $106.9 million and were all performing in accordance with their original contractual terms at that date.

Construction and Land Loans. At December 31, 2025, construction and land loans totaled $44.5 million, or 1.2% of total loans receivable, and the additional unadvanced portion of these construction loans totaled $19.4 million. At December 31, 2025, we had 18 construction and land loans with an average balance of approximately $2.5 million. Our largest construction and land loan had a principal balance of $9.5 million, and is secured by a proposed 280-unit rental multifamily project in Marlboro, New Jersey, where we have a 35% participation interest. At December 31, 2025, this loan was performing in accordance with its original contractual terms.

Our construction and land loans typically are interest-only loans with interest rates that are tied to the Prime Rate as published in The Wall Street Journal. Margins generally range from zero to 200 basis points above the Prime Rate. We also originate, to a lesser extent, 10- to 15-year fixed-rate, fully amortizing land loans. In general, our construction and land loans have interest rate floors equal to the interest rate on the date the loan is originated, and we do not typically charge prepayment penalties.

Land loans also help finance the purchase of land intended for future development, including single-family housing, multifamily housing, and commercial property. In general, the maximum loan-to-value ratio for land acquisition loans is 50% of the appraised value of the property, and the maximum term of these loans is three years.

Construction and land loans generally carry higher interest rates and have shorter terms than multifamily and commercial real estate loans. Construction and land loans have greater credit risk than long-term financing on improved, income-producing real estate. Risk of loss on a construction loan depends largely upon the accuracy of the initial estimate of the project at completion of construction as compared to the estimated cost (including interest) of construction and other assumptions. If the estimate of construction costs is inaccurate, we may decide to advance additional funds beyond the amount originally committed in order to protect our security interest in the underlying property. However, if the estimated value of the completed project is inaccurate, the borrower may hold real estate with a value that is insufficient to assure full repayment of the construction loan upon its sale. In the event we make a land acquisition loan on real estate that is not yet approved for the planned development, there is a risk that approvals will not be granted or will be delayed. Construction loans also expose us to a risk that improvements will not be completed on time in accordance with specifications and projected costs. In addition, the ultimate sale or rental of the project may not occur as anticipated and the market value of collateral, when completed, may be less than the outstanding loans and there may be no permanent financing available upon completion. Substantially all of our construction and land loans are secured by real estate located in our primary market areas.

Commercial and Industrial Loans. At December 31, 2025, commercial and industrial loans totaled $166.2 million, or 4.3% of the total loan portfolio, and the additional unadvanced portion of these commercial and industrial loans totaled $107.8 million. As of December 31, 2025, we had 811 commercial and industrial loans with an average loan balance of approximately $205,000, although we originate these types of loans in amounts substantially greater than this average. At December 31, 2025, our largest commercial and industrial loan had a principal balance of $10.0 million, and was performing in accordance with its original contractual terms.

Our term commercial and industrial loans typically amortize over five to seven years with interest rates that are primarily indexed to various FHLB rates, and to a lesser extent, the Prime Rate. Margins generally range from zero to 300 basis points above the index rate. We also originate, to a lesser extent, 10-year fixed-rate, fully amortizing loans. In general, our commercial and industrial loans have interest rate floors equal to the interest rate on the date the loan is originated and have prepayment penalties.

We make various types of secured and unsecured commercial and industrial loans for the purpose of working capital and other general business purposes. The terms of these loans generally range from less than one year to a maximum of seven years, however we could allow for a maximum of 10 years depending on industry or asset type. The loans either are negotiated on a fixed-rate basis or carry adjustable interest rates indexed to the Prime Rate as published in The Wall Street Journal.

Commercial credit decisions are based on our credit assessment of the applicant. We evaluate the applicant’s ability to repay in accordance with the proposed terms of the loan and assess the risks involved. Personal guarantees of the principals are typically obtained. In addition to evaluating the loan applicant’s financial statements, we consider the adequacy of the secondary sources of repayment for the loan, such as pledged collateral and the financial stability of the guarantors. Collateral securing a loan also is analyzed to determine its marketability.

Commercial and industrial loans generally carry higher interest rates than multifamily and commercial real estate loans of like maturity because they have a higher risk of default since their repayment generally depends on the successful operation of the borrowers’ business.

Within our commercial and industrial loan portfolio, we offer unsecured small business loans primarily underwritten utilizing a third-party loan scoring system designed to assess the credit risk of small businesses. These loans include fixed-rate term loans with typical maturities of up to seven years and revolving floating-rate working capital lines of credit reviewed annually. Maximum loan amounts within this loan segment are limited to the lesser of a percentage of a business’s revenue or $100,000 and require the full personal guarantees of the business owners. Unsecured small business loans totaled $20.6 million and $28.9 million at December 31, 2025 and 2024, respectively.

The Bank also underwrites SBA guaranteed loans and guaranteed or assisted loans through various state, county and municipal programs.

One-to-Four Family Residential Real Estate Loans. At December 31, 2025, we had 305 one-to-four family residential real estate loans outstanding with an aggregate balance of $165.1 million, or 4.3% of our total loan portfolio. As of December 31, 2025, the average balance of one-to-four family residential real estate loans was approximately $541,000, although we have originated these types of loan in amounts substantially greater than this average. At December 31, 2025, our largest loan of this type (excluding purchased loan pools, discussed below) had a principal balance of $5.0 million and was collateralized by 42 condominiums within a complex in Union County, New Jersey. The loan was performing in accordance with its original contractual terms. We have established a one-to-four family residential mortgage lending program to originate retail first mortgage loans. These mortgages will be either held-for-investment or held-for-sale and sold in the secondary market.

Historically, we have not offered “interest-only” mortgage loans on one-to-four family residential real estate properties, where the borrower pays interest for an initial period, after which the loan converts to a fully amortizing loan. However, since 2014 we have purchased pools of one-to-four family residential real estate loans which included interest-only mortgage loans and had $13.5 million of such loans at December 31, 2025. We also historically have not offered loans that provide for negative amortization of principal, such as “Option ARM” loans, where the borrower can pay less than the interest owed on the loan, resulting in an increased principal balance during the life of the loan.

Home Equity Loans and Lines of Credit. At December 31, 2025, we had 2,589 home equity loans and lines of credit with an aggregate outstanding balance of $198.6 million, or 5.1% of our total loan portfolio, and the additional unadvanced portion of these home equity loans and lines of credit totaled $170.1 million. Of this total, outstanding home equity loans totaled $87.0 million, or 2.3% of our total loan portfolio and home equity lines of credit totaled $106.7 million, or 2.8% of our total loan portfolio. At December 31, 2025, the average home equity loan and line of credit balance was approximately $77,000 although we originate these types of loans in amounts substantially greater than this average. At December 31, 2025, our largest home equity line of credit had an outstanding balance of approximately $2.0 million. This loan was performing in accordance with its original contractual terms. At December 31, 2025, our largest outstanding home equity loan was $1.6 million and was performing in accordance with its original contractual terms.

We offer home equity loans and home equity lines of credit that are secured by the borrower’s primary residence or second home. Home equity lines of credit are adjustable-rate loans tied to the Prime Rate as published in The Wall Street Journal adjusted for a margin, and have a maximum term of 25 years during which time the borrower is required to make principal payments based on a 30-year amortization. The borrower is permitted to draw against the line during the entire term on originations occurring prior to June 15, 2011. For home equity loans originated beginning on June 15, 2011, the borrower is only permitted to draw against the line for the initial 10 years. Our home equity loans typically are fully amortizing with fixed terms up to 25 years. Home equity loans and lines of credit generally are underwritten with the same criteria we use to underwrite fixed-rate, one-to-four family residential real estate loans. Home equity loans and lines of credit may be underwritten with a loan-to-value ratio of 80% when combined with the principal balance of the existing mortgage loan.

PCD Loans. Under the current expected credit losses (“CECL”) methodology, the Company elected to maintain pools of loans that were previously accounted for under Accounting Standards Codification (“ASC”) Subtopic 310-30 - Accounting for Purchased Loans with Deteriorated Credit Quality (“ASC 310-30”), and will continue to account for these pools as a unit of account. Loans are only removed from existing pools if they are written off, paid off, or sold. Under CECL, the allowance for credit losses was determined for each pool and added to the pool's carrying amount to establish a new amortized cost basis. The difference between the unpaid principal balance of the pool and the new amortized cost basis is the noncredit premium or discount, which will be amortized into interest income over the remaining life of the pool. Changes to the allowance for credit losses are recorded through provision expense.

At December 31, 2025, PCD loans consisted of approximately 10% of one-to-four family residential loans, 21% of commercial real estate loans, 58% of commercial and industrial loans, and 11% of home equity loans. At December 31, 2024, PCD loans consisted of approximately 9% one-to-four family residential loans, 25% commercial real estate loans, 55% commercial and industrial loans, and 11% in home equity loans. At December 31, 2023, PCD loans consisted of approximately 7% one-to-four family residential loans, 25% commercial real estate loans, 57% commercial and industrial loans, and 11% in home equity loans.

Non-Performing and Problem Assets

When a loan is between 10 to 15 days delinquent, we generally send the borrower a late charge notice. When a loan is 30 days past due, we generally mail the borrower a letter reminding the borrower of the delinquency and, except for loans secured by one-to-four family residential real estate, we attempt personal contact with the borrower to determine the reason for the delinquency, to ensure the borrower correctly understands the terms of the loan, and to emphasize the importance of making payments on or before the due date. If necessary, additional late charges and delinquency notices are issued and the account will be monitored. After 90 days of delinquency, we generally send the borrower a final demand for payment and refer the loan to legal counsel to commence foreclosure and related legal proceedings. At times, we may shorten or lengthen these time frames.

Generally, loans (excluding PCD loans) are placed on non-accrual status when payment of principal or interest is 90 days or more delinquent unless the loan is considered well-secured and in the process of collection. Loans also are placed on non-accrual status at any time if the ultimate collection of principal or interest in full is in doubt. When loans are placed on non-accrual status, unpaid accrued interest is reversed, and further income is recognized only to the extent received, and only if the principal balance is deemed fully collectible. The loan may be returned to accrual status if both principal and interest payments are brought current and factors indicating doubtful collection no longer exist, including performance by the borrower under the loan terms for a consecutive six-month period. Our Chief Credit Officer reports monitored loans, including all loans rated watch, special mention, substandard, doubtful or loss, to the Loan Committee of the Board of Directors at least quarterly.

Effective January 1, 2023, we adopted Accounting Standards Update (“ASU”) No. 2022-02, “Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures” (“ASU 2022-02”) on a prospective basis. The amendments in this ASU were issued to (1) eliminate accounting guidance for Troubled Debt Restructurings (“TDRs”) by creditors, while enhancing disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty; (2) require disclosures of current period gross write-offs by year of origination for financing receivables and net investments in leases. Under ASU 2022-02, we assess all loan modifications to determine whether one is granted to a borrower experiencing financial difficulty, regardless of whether the modified loan terms include a concession. Modifications granted to borrowers experiencing financial difficulty may be in the form of an interest rate reduction, an other-than-insignificant payment delay, a term extension, principal forgiveness or a combination thereof.

Prior to the adoption of ASU 2022-02, a TDR occurred when the terms of a loan were modified because of deterioration in the financial condition of the borrower. Modifications could include extension of the repayment terms of the loan, reduced interest rates, or forgiveness of accrued interest and/or principal. We recorded an impairment loss associated with a TDR, if any, based on the present value of expected future cash flows discounted at the original loan’s effective interest rate or the underlying collateral value, less estimated cost to sell, if the loan is collateral dependent. Once an obligation had been restructured because of credit problems, it continued to be considered restructured until paid in full or, if the obligation yielded a market rate (a rate equal to or greater than the rate we were willing to accept at the time of the restructuring for a new loan with comparable risk), until the year after which the restructuring takes place, provided the borrower had performed under the modified terms for a consecutive six-month period. Since adoption of ASU 2022-02, the Company has ceased to recognize or measure for new TDRs but those existing at January 1, 2023 remain until settled.

Non-Performing and Restructured Loans (excluding PCD). The table below sets forth the amounts and categories of our non-performing assets at the dates indicated.


	At December 31,
	2025			2024			2023
	(Dollars in thousands)
Non-accrual loans held-for-investment:
Real estate loans:
Commercial mortgage	$	5,012		$	4,578		$	6,491
One-to-four family residential	—			—			104

Multifamily	3,688			2,609			2,709
Home equity and lines of credit	1,778			1,270			499
Commercial and industrial loans	4,732			5,807			305
Other	—			—			7
Total non-accrual loans held-for-investment	15,210			14,264			10,115
Loans delinquent 90 days or more and still accruing held-for-investment:
Real estate loans:
Commercial mortgage	51			—			—
One-to-four family residential	863			882			406

Multifamily	—			164			201
Home equity and lines of credit	7			140			711
Other	4			—			—

Total loans delinquent 90 days or more and still accruing	925			1,186			1,318
Non-performing loans held-for-sale
Commercial mortgage	—			4,397			—
Commercial and industrial loans	—			500			—
Total non-performing loans held-for-sale	—			4,897			—
Total non-performing loans held-for-investment	16,135			20,347			11,433


Total non-performing assets	$	16,135		$	20,347		$	11,433
Ratios:
Non-performing loans to total loans (1)	0.42		%	0.51		%	0.27		%
Non-accrual loans held-for-investment to total loans held-for-investment, net	0.39		%	0.35		%	0.24		%
Non-performing assets to total assets	0.28		%	0.36		%	0.20		%
Total assets	$	5,754,010		$	5,666,378		$	5,598,396
Loans held-for-investment, net	$	3,856,773		$	4,022,224		$	4,203,654

(1) Includes non-performing loans transferred to held-for-sale.

At December 31, 2025, 4.0% of PCD loans were past due 30 to 89 days, and 23.2% were past due 90 days or more. At December 31, 2024, 2.1% of PCD loans were past due 30 to 89 days, and 24.9% were past due 90 days or more. At December 31, 2023, 2.9% of PCD loans were past due 30 to 89 days, and 27.1% were past due 90 days or more.

The following table sets forth the property types collateralizing non-accrual commercial real estate loans held-for investment at December 31, 2025:


	At December 31, 2025
	Amount		Percent
	(Dollars in thousands)
Services	$	2,723	54.3	%
Warehousing	1,643		32.8
Restaurant	464		9.3
Retail	60		1.2
Manufacturing	20		0.4
Other	102		2.0
Total	$	5,012	100.0	%

Other Real Estate Owned. Real estate acquired by us as a result of foreclosure or by deed in lieu of foreclosure is classified as other real estate owned. On the date the property is acquired, it is recorded at the lower of cost or estimated fair value, establishing a new cost basis. Estimated fair value generally represents the sale price a buyer would be willing to pay on the basis of current market conditions, less the estimated costs to sell the property. Holding costs and declines in estimated fair value result in charges to expense after acquisition. At December 31, 2025 and 2024, the Company had no real estate owned acquired through foreclosure.

Potential Problem Loans and Classification of Assets. Our policies, consistent with regulatory guidelines, provide for the classification of loans and other assets that are considered to be of lesser quality as substandard, doubtful, or loss assets. An asset is classified substandard if it is inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Substandard assets include those assets characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected. Assets classified as doubtful have all of the weaknesses inherent in those classified substandard with the added characteristic that the weaknesses present make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. Assets (or portions of assets) classified as loss are those considered uncollectible and of such little value that their continuance as assets is not warranted. Assets that do not expose us to risk sufficient to warrant classification in one of the aforementioned categories, but which possess potential weaknesses that deserve our close attention, are designated as special mention. At December 31, 2025, classified assets, excluding loans on non-accrual status, consisted of substandard assets of $24.9 million and no doubtful or loss assets. At December 31, 2025, we also had $18.6 million of assets designated as special mention. At December 31, 2024, classified assets, excluding loans on non-accrual status, consisted of substandard assets of $14.9 million and no doubtful or loss assets. At December 31, 2024, we also had $17.0 million of assets designated as special mention. The increase in substandard assets at December 31, 2025 from December 31, 2024, was primarily due to downgrades of one commercial real estate relationship and one commercial and industrial relationship which had outstanding balances of $6.5 million and $2.9 million, respectively, at December 31, 2025.

Our determination as to the classification of our assets (and the amount of our loss allowances) is subject to review by our principal federal regulator, the OCC, which can require that we adjust our classification and related loss allowances. We regularly review our asset portfolio to determine whether any assets require classification in accordance with applicable regulations. We also engage the services of a third party to review, on a sample basis, our risk ratings on a semi-annual basis.

The following table sets forth the total amounts of delinquencies for accruing loans that were 30 to 89 days past due by type and by amount at the dates indicated:


	December 31,
	2025		2024
	(Dollars in thousands)
Real estate loans:
Multifamily	$	471	$	2,831
Commercial mortgage	6,984		78
One-to-four family residential	1,124		2,407
Home equity and lines of credit	1,110		1,472

Commercial and industrial loans	1,735		2,545
Other loans	—		3
Total	$	11,424	$	9,336

The increase in delinquent commercial mortgage loans was primarily due to one loan which had an outstanding balance of $6.5 million and was 61 days past due at December 31, 2025. The loan is secured by collateral property with an appraised value of $13.1 million.

Allowance for Credit Losses on Loans

We provide for credit losses on loans based on our documented allowance for credit losses methodology. Credit losses are charged to the allowance for credit losses and recoveries are credited to it. Additions to the allowance for credit losses are provided by charges against income based on various factors, which, in our judgment, deserve current recognition in estimating current estimated credit losses. Credit losses are charged-off in the period the loans, or portion thereof, are deemed uncollectible. Generally, the Company will record a loan charge-off (including a partial charge-off) to reduce a loan to the estimated fair value of the underlying collateral, less cost to sell, for collateral dependent loans. We regularly review the loan portfolio in order to maintain the allowance for credit losses in accordance with U.S. GAAP. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations - Critical Accounting Polices - Allowance for Credit Losses on Loans” for a description of our allowance methodology.

The following table sets forth activity in our allowance for credit losses for the years indicated:


	At or For the Years Ended December 31,
	2025			2024			2023
	(Dollars in thousands)
Balance at beginning of year	$	35,183		$	37,535		$	42,617


Charge-offs:
Commercial mortgage (1)	—			(136)			—




Commercial and industrial	(5,340)			(6,873)			(6,572)

PCD loans	(343)			—			(8)

Total charge-offs	(5,683)			(7,009)			(6,580)
Recoveries:
Commercial mortgage (1)	62			57			71
One-to-four family residential	—			9			—


Home equity and lines of credit	—			92			1
Commercial and industrial	1,143			218			63

PCD loans	37			—			10

Total recoveries	1,242			376			145
Net charge-offs	(4,441)			(6,633)			(6,435)
Provision/(benefit) for credit losses	7,402			4,281			1,353
Balance at end of year	$	38,144		$	35,183		$	37,535
Ratios:
Net charge-offs to average loans outstanding (2):




Commercial and industrial	(0.10)		%	(0.16)		%	(0.15)		%
PCD	(0.01)			—			—
Total net charge-offs	(0.11)		%	(0.16)		%	(0.15)		%

Allowance for credit losses to total non-performing loans at end of year (3)	236.42			227.72			328.30

Allowance for credit losses to total loans held-for-investment, net, at end of year (4)	0.99			0.87			0.89
Allowance for credit losses to non-accrual loans held-for-investment at end of year (4)	250.78			246.66			371.08



(1)			Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties.
(2)			Calculated based on average total loans.
(3)			Excludes non-performing loans held-for-sale.
(4)			Includes PCD and acquired loans held-for-investment (and related allowance for credit losses).

At December 31, 2025 and 2024, the allowance for credit losses related to PCD loans was $2.6 million and $2.9 million, respectively. Loans held-for-sale, when applicable, are excluded from the allowance for credit losses coverage ratios in the table above.

Allocation of Allowance for Credit Losses. The following table sets forth the allowance for credit losses allocated by loan category and the percent of loans in each category to total loans at the dates indicated. The allowance for credit losses allocated to each category is not necessarily indicative of future losses in any particular category and does not restrict the use of the allowance to absorb losses in other categories.


	At December 31,
	2025				2024				2023
	Allowance for Credit Losses		Percent of Loans in Each Category to Total Loans		Allowance for Credit Losses		Percent of Loans in Each Category to Total Loans		Allowance for Loan Losses		Percent of Loans in Each Category to Total Loans
	(Dollars in thousands)
Real estate loans:
Commercial mortgage (1)	$	24,482	84.86	%	$	20,949	86.71	%	$	23,255	87.55	%
One-to-four family residential	2,213		4.28		2,245		3.73		3,285		3.83
Construction and land	102		1.15		103		0.89		149		0.74

Home equity and lines of credit	2,880		5.15		2,254		4.33		1,705		3.89
Commercial and industrial	5,842		4.31		6,724		4.06		6,050		3.69

PCD loans	2,621		0.21		2,904		0.23		3,085		0.24

Other	4		0.04		4		0.05		6		0.06
Total allowance	$	38,144	100.00	%	$	35,183	100.00	%	$	37,535	100.00	%

(1) Commercial includes commercial real estate loans collateralized by owner-occupied, non-owner occupied, and multifamily properties.

Investments

We conduct securities portfolio transactions in accordance with our board-approved investment policy. Northfield Bank's investment policy is reviewed at least annually by the Risk Committee of the Board of Directors (“Risk Committee”). Any changes to the policy are subject to ratification by the full Board of Directors. This policy dictates that investment decisions give consideration to the safety of the investment, liquidity requirements, potential returns, the ability to provide collateral for pledging requirements, and consistency with our interest rate risk management strategy. Our Chief Investment Officer executes our securities portfolio transactions, within policy requirements, with the approval of either the Chief Executive Officer or the Chief Financial Officer. NSB Services Corp.’s and NSB Realty Trust’s (which are each Bank subsidiaries) investment officers execute security portfolio transactions in accordance with investment policies that substantially mirror Northfield Bank’s investment policy. All purchase and sale transactions are reviewed by the Risk Committee at least quarterly.

Our current investment policy permits investments in mortgage-backed securities, including pass-through securities and real estate mortgage investment conduits (“REMICs”). The investment policy also permits, with certain limitations, investments in debt securities issued by the U.S. Government, agencies of the U.S. Government or U.S. Government-sponsored enterprises (“GSEs”), asset-backed securities, municipal obligations (including bonds, tax anticipation notes and bond anticipation notes), money market mutual funds, federal funds, investment grade corporate bonds, subordinated debt, reverse repurchase agreements, and certificates of deposit.

Northfield Bank’s investment policy does not permit investment in common stock of other entities including GSEs, other than our required investment in the common stock of the FHLBNY, as permitted for community reinvestment act purposes or to fund Northfield Bank’s deferred compensation plan. Northfield Bancorp may invest in equity securities of other financial institutions, as well as preferred stock, up to certain limitations. As of December 31, 2025, we did not hold any asset-backed securities other than mortgage-backed securities.

Our current investment policy permits hedging through the use of derivative instruments such as financial futures or interest rate options and swaps, although we currently have no derivative hedging instruments in place.

We purchase mortgage-backed securities insured or guaranteed primarily by the Federal National Mortgage Association (“Fannie Mae”), the Federal Home Loan Mortgage Corporation (“Freddie Mac”), or the Government National Mortgage Association (“Ginnie Mae”). We invest in mortgage-backed securities to achieve positive interest rate spreads with minimal administrative expense, and to lower our credit risk as a result of the guarantees provided as well as to provide us liquidity to fund loan originations and deposit outflows. Mortgage-backed securities are securities sold in the secondary market that are collateralized by pools of mortgages.

Mortgage-backed securities are more liquid than individual mortgage loans since there is a more active market for such securities. In addition, mortgage-backed securities may be used to collateralize our specific liabilities and obligations. Investments in mortgage-backed securities issued or guaranteed by GSEs involve a risk that actual payments will be greater or less than estimated at the time of purchase, which may require adjustments to the amortization of any premium or accretion of any discount relating to such interests, thereby affecting the net yield on our securities. We periodically review current prepayment speeds to determine whether prepayment estimates require modification that could cause adjustment of amortization or accretion.

REMICs are a type of mortgage-backed security issued by special purpose entities that aggregate pools of mortgages and mortgage-backed securities and create different classes of securities with varying maturities and amortization schedules, as well as a residual interest, with each class possessing different risk characteristics. The cash flows from the underlying collateral are generally divided into “tranches” or classes that have descending priorities with respect to the distribution of principal and interest cash flows.

The timely payment of principal and interest on these REMICs is generally supported (credit enhanced) in varying degrees by either insurance issued by a financial guarantee insurer, letters of credit, over collateralization, or subordination techniques. Privately-issued REMICs and pass-throughs can be subject to certain credit-related risks normally not associated with U.S. Government agency and GSE mortgage-backed securities. The loss protection generally provided by the various forms of credit enhancements is limited, and losses in excess of certain levels are not protected. Furthermore, the credit enhancement itself is subject to the creditworthiness of the credit enhancer. Thus, in the event a credit enhancer does not fulfill its obligations, the holder could be subject to risk of loss similar to a purchaser of a whole loan pool. Management believes that the credit enhancements are adequate to protect us from material losses on our private label mortgage-backed securities investments.

At December 31, 2025, our corporate bond portfolio consisted of securities, substantially all of which were investment-grade, and had remaining maturities generally shorter than ten years. Our investment policy provides that we may invest up to 15% of our Tier 1 risk-based capital in corporate bonds from individual issuers which, at the time of purchase, are within the investment-grade ratings from Standard & Poor’s, Moody’s or Fitch. Corporate bonds from individual issuers not rated investment grade at the time of purchase, are limited to the lesser of 1% of our total assets or 15% of our Tier 1 risk-based capital, and must have a maturity of less than one year. Aggregate holdings of this security type cannot exceed 5% of our total assets. Aggregate holdings of individual issuers of corporate bonds and commercial paper, both investment grade and non-investment grade, are not to exceed 50% of Tier 1 capital of the Company.

The following table sets forth the amortized cost and estimated fair value of our available-for-sale and held-to-maturity securities portfolios (excluding FHLBNY common stock) at the dates indicated. As of December 31, 2025, 2024, and 2023, we also had a trading portfolio with a fair value of $15.2 million, $13.9 million and $12.5 million, respectively, consisting of mutual funds quoted in actively traded markets. These securities are utilized to fund non-qualified deferred compensation obligations.


	At December 31,
	2025				2024				2023
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Debt securities available-for-sale:
U.S. Treasuries	$	—	$	—	$	—	$	—	$	44,364	$	44,379
U.S. Government agency securities	607		558		75,734		75,348		75,898		73,908
Mortgage-backed securities:
Pass-through certificates:
GSEs	515,162		506,949		282,704		261,676		365,823		337,540

REMICs:
GSEs	870,020		872,099		734,086		727,343		224,931		213,100

Other debt securities:
Municipal bonds	614		614		684		685		765		763
Corporate bonds	32,101		32,199		36,569		35,765		128,704		125,774

Total debt securities available-for-sale	$	1,418,504	$	1,412,419	$	1,129,777	$	1,100,817	$	840,485	$	795,464


	At December 31,
	2025				2024				2023
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Securities held-to-maturity:
Mortgage-backed securities:
Pass-through certificates - GSEs	$	8,339	$	8,144	$	9,303	$	8,762	$	9,866	$	9,586

Total securities held-to-maturity	$	8,339	$	8,144	$	9,303	$	8,762	$	9,866	$	9,586

Portfolio Maturities and Yields. The composition and maturities of the investment securities portfolio at December 31, 2025, are summarized in the following table. Maturities are based on the final contractual payment dates, and do not reflect the effect of scheduled principal repayments, prepayments, or early redemptions that may occur. All of our securities at December 31, 2025, were taxable with the exception of our U.S. Government agency securities and municipal portfolio. Weighted average yield is based on amortized cost.


	One Year or Less				More than One Year through Five Years				More than Five Years through Ten Years				More than Ten Years				Total
	Amortized Cost		Weighted Average Yield		Amortized Cost		Weighted Average Yield		Amortized Cost		Weighted Average Yield		Amortized Cost		Weighted Average Yield		Amortized Cost		Fair Value		Weighted Average Yield
	(Dollars in thousands)
Securities available-for-sale:

U.S. Government agency securities:	$	—	—	%	$	607	3.14	%	$	—	—	%	$	—	—	%	$	607	$	558	3.14	%
Mortgage-backed securities:
Pass-through certificates:
GSEs	$	278	3.28	%	$	25,800	2.18	%	$	129,925	2.31	%	$	359,159	5.15	%	$	515,162	506,949		4.29	%
REMICs:
GSE	44		2.47	%	1,264		2.29	%	1,158		3.04	%	867,554		4.99	%	870,020		872,099		4.99	%

	$	322	3.17	%	$	27,064	2.19	%	$	131,083	2.32	%	$	1,226,713	5.04	%	$	1,385,182	$	1,379,048	4.73	%
Other debt securities:
Municipal bonds	$	510	4.72	%	$	104	5.44	%	$	—	—	%	$	—	—	%	$	614	$	614	4.84	%
Corporate bonds	3,801		4.41	%	18,300		2.02	%	10,000		7.39	%	—		—	%	32,101		32,199		3.97	%

	$	4,311	4.45	%	$	18,404	2.04	%	$	10,000	7.39	%	$	—	—	%	$	32,715	$	32,813	3.99	%
Total securities available-for-sale	$	4,633	4.36	%	$	46,075	2.14	%	$	141,083	2.68	%	$	1,226,713	5.04	%	$	1,418,504	$	1,412,419	4.71	%

Securities held-to-maturity:
Mortgage-backed securities:
Pass-through certificates:
GSEs	$	—	—	%	$	—	—	%	$	—	—	%	$	8,339	4.26	%	$	8,339	$	8,144	4.26	%
Total securities held-to-maturity	$	—	—	%	$	—	—	%	$	—	—	%	$	8,339	4.26	%	$	8,339	$	8,144	4.26	%

Sources of Funds

General. Deposits traditionally have been our primary source of funds for our lending and securities activities. We also borrow from the FHLBNY, the Federal Reserve Bank and other financial institutions to supplement cash flow needs, to manage the maturities of liabilities for interest rate and investment risk management purposes, and to manage our cost of funds. Our additional sources of funds are borrowings through repurchase agreements, the proceeds of loan sales, scheduled loan and investment payments, maturities and sales of securities, loan prepayments, and brokered deposits.

Deposits. We accept deposits primarily from the areas in which our offices are located. We offer a variety of deposit accounts to businesses, consumers and municipalities with a range of interest rates and terms. We purchase brokered deposits when it is deemed cost effective. At December 31, 2025 and 2024, we had brokered deposits totaling $40.5 million and $263.4 million, respectively. The decrease in brokered deposits was due to the Company placing less reliance on brokered deposits in which had been used as a lower-cost alternative to borrowings. In addition, municipal deposits which primarily consist of funds from local government entities domiciled in New Jersey, and are a significant source of funds, totaled $988.3 million, or 24.6% of our total deposits at December 31, 2025. At December 31, 2024, municipal deposits totaled $859.3 million, or 20.8% of our total deposits. Municipal deposits are primarily collateralized by municipal letters of credit issued by the FHLBNY and/or mortgaged-backed securities.

At December 31, 2025, we reported $1.99 billion of estimated uninsured deposits. This total included $1.03 billion of collateralized governmental deposits and intercompany deposits, leaving estimated adjusted uninsured deposits of $952.9 million, or 23.7% of total deposits. Total uninsured deposits at December 31, 2024 were estimated at $1.82 billion. As of those dates we had no deposits that were uninsured for any reason other than being in excess of the $250,000 limit for federal deposit insurance.

As of December 31, 2025, the aggregate amount of our outstanding certificates of deposit in amounts greater than $250,000 was $142.0 million. The following table sets forth the maturity of these certificates at December 31, 2025:



	December 31, 2025
	(Dollars in thousands)
Three months or less	$	108,224
Over three months through six months	24,531
Over six months through one year	5,699
Over one year	3,587
Total	$	142,041

The following table provides the uninsured portion of certificates of deposit at December 31, 2025, by account, with a maturity of:



	December 31, 2025
	(Dollars in thousands)
Three months or less	$	43,247
Over three months through six months	15,281
Over six months through one year	2,699
Over one year	587
Total	$	61,814

At December 31, 2025, we had $724.2 million in certificates of deposit, of which $665.9 million had remaining maturities of one year or less.

The following table sets forth the distribution of our average total deposit accounts, by account type, for the periods indicated:


	For the Year Ended December 31,
	2025						2024						2023
	Average Balance		Percent		Weighted Average Rate		Average Balance		Percent		Weighted Average Rate		Average Balance		Percent		Weighted Average Rate
	(Dollars in thousands)
Non-interest bearing demand	$	722,711	17.85	%	—	%	$	694,543	17.85	%	—	%	$	770,939	20.26	%	—	%
NOW and interest bearing demand	1,409,099		34.80		2.09	%	1,280,850		32.93	%	2.16	%	1,226,944		32.24	%	1.35	%
Money market accounts	270,796		6.69		1.80	%	276,366		7.10	%	1.55	%	342,251		8.99	%	0.87	%
Savings	836,802		20.67		1.74	%	891,821		22.93	%	2.05	%	894,259		23.50	%	1.22	%
Certificates of deposit	809,542		19.99		3.70	%	746,629		19.19	%	4.29	%	571,042		15.01	%	3.21	%
Total deposits	$	4,048,950	100.00	%	1.95	%	$	3,890,209	100.00	%	2.11	%	$	3,805,435	100.00	%	1.28	%

Borrowings. Our borrowings consist primarily of advances from the FHLBNY. As of December 31, 2025, our FHLB advances totaled $893.8 million, or 17.7% of total liabilities and floating rate advances and other interest-bearing liabilities totaled $6.4 million, or 0.1% of total liabilities. At December 31, 2025, the Company had the ability to obtain additional funding from the FHLBNY and Federal Reserve Bank discount window of approximately $1.83 billion, utilizing unencumbered securities of $727.1 million and loans of $1.10 billion. Repurchase agreements are primarily secured by mortgage-backed securities. Advances from the FHLBNY are secured by our investment in the common stock of the FHLBNY as well as by pledged mortgage-backed securities and loans.

Subordinated Debt. On June 17, 2022, the Company issued $62.0 million in aggregate principal amount of fixed-to-floating subordinated notes (the “Notes”) to certain institutional investors. The Notes mature on June 30, 2032, unless redeemed earlier. The Notes initially bear interest, payable semi-annually in arrears, at a fixed rate of 5.00% per annum until June 30, 2027. Beginning June 30, 2027 and until maturity or redemption, the interest rate will reset quarterly to an interest rate per annum equal to the then current three-month Secured Overnight Financing Rate plus 200 basis points, payable quarterly in arrears. The Company has the option to redeem the Notes, at par and in whole or in part, beginning on June 30, 2027 and to redeem the Notes at any time in whole upon certain other events. Any redemption of the Notes will be subject to prior regulatory approval to the extent required.

Human Capital

At December 31, 2025, the Company had a total of 374 employees, (370 full-time and four part-time), located primarily in New York and New Jersey. We are focused on attracting, developing and retaining employees with diverse backgrounds and experiences whose contributions can maximize our financial and strategic growth objectives and build long-term stockholder value. Our core values of trust, respect and excellence, coupled with our vision to be a high-performing community bank where employees want to work, customers want to bank, and stockholders want to invest fosters innovation, increases business value, and enriches our corporate culture. We believe our relationship with our employees is strong. We have not experienced any material employment-related issues or interruptions of services due to labor disagreements and are not a party to any collective bargaining agreements. Key items related to our human capital are described below.

Compensation and Benefits. We offer employees competitive short-term and long-term compensation that we periodically benchmark to market data utilizing third-party consultants specialized in employee compensation and retention. We offer health and welfare benefits, including medical, dental and vision insurance, life insurance, short-term disability, and various expense reimbursement programs. We sponsor a 401(k) plan, which provides eligible employees the opportunity to invest a portion of their base salary, up to regulatory limits, in professionally managed investment options, and self-directed brokerage accounts. We match up to 50% of employee contributions up to the first 6% of compensation, as defined, based on years of service. We also maintain the Northfield Bank Employee Stock Ownership Plan (the “ESOP”) for eligible employees. The ESOP is a tax-qualified plan invested in our common stock. The ESOP provides employees with the opportunity to receive a retirement benefit based on the value of our common stock, and is 100% funded by Northfield Bank.

Employee Engagement. Periodically, we measure employee engagement and satisfaction, and through efforts of our employee engagement and workplace culture team, we develop action plans for continued improvement. We have introduced virtual town hall meetings for all employees, opening the lines of communications and answering employee questions and concerns. In conjunction with the town hall meetings and internal focus groups, periodic surveys are conducted related to well-being, compensation, benefits, and our core values. These surveys provided insight into our employees’ needs and preferences, which we consider in future program development.

Learning and Development. We encourage and support continued education and the ongoing growth and development of our employees. We seek, wherever feasible, to fill open positions internally through promotion and transfer from within the Company. Ongoing learning and career development is advanced through bi-annual performance and development conversations between associates and their managers, internally developed training programs, customized corporate training engagements, professional career coaching and educational reimbursement programs. Reimbursement is available to employees enrolled in pre-approved degree or certification programs at accredited entities that teach skills or knowledge relevant to our business and employee job duties.

Safety and Wellness. The safety, health and wellness of our employees is a top priority. On a regular basis, we promote the health and wellness of our employees by encouraging work-life balance, offering flexible work schedules, and encouraging and sponsoring various wellness programs.

Subsidiary Activities

Northfield Bancorp owns 100% of Northfield Investments, Inc., an inactive New Jersey investment company, and 100% of Northfield Bank. Northfield Bank owns 100% of NSB Services Corp., a Delaware corporation, which in turn owns 100% of the voting common stock of NSB Realty Trust. NSB Realty Trust is a Maryland real estate investment trust that holds mortgage loans, mortgage-backed securities and other investments. These entities enable us to segregate certain assets for management purposes, and/or borrow against assets or stock of these entities for liquidity purposes. At December 31, 2025, Northfield Bank’s investment in NSB Services Corp. was $918.2 million, and NSB Services Corp. had assets of $918.8 million and liabilities of $632,000 at that date. At December 31, 2025, NSB Services Corp.’s investment in NSB Realty Trust was $918.3 million, and NSB Realty Trust had $918.3 million in assets and liabilities of $56,000 at that date.

SUPERVISION AND REGULATION

General

Northfield Bank is a federally chartered savings bank that is primarily regulated, examined, and supervised by the OCC, and by the FDIC as deposit insurer for certain activities. This regulation and supervision establish a comprehensive framework of activities in which an institution may engage and is intended primarily for the protection of the FDIC’s Deposit Insurance Fund and depositors, and not for the protection of security holders. Under this system of federal regulation, financial institutions are periodically examined to ensure that they satisfy applicable standards with respect to their capital adequacy, assets, management, earnings, liquidity, and sensitivity to market interest rates. The OCC examines Northfield Bank and prepares reports for the consideration of its Board of Directors on any operating deficiencies. Northfield Bank’s relationship with its depositors and borrowers is regulated to a great extent by federal law and, to a much lesser extent, state law, especially in matters concerning the ownership of deposit accounts and the form and content of Northfield Bank’s loan documents. Northfield Bank is also a member of and owns stock in the FHLBNY, which is one of the 11 regional banks in the FHLB System.

As a savings and loan holding company, Northfield Bancorp is subject to regulation, supervision and examination by the FRB. Northfield Bancorp is required to file periodic reports with the FRB and is subject to the FRB's enforcement authority. Northfield Bancorp is also subject to the rules and regulations of the SEC under the federal securities laws.

Any change in applicable laws or regulations, whether by the FDIC, the OCC, the FRB, the SEC, U.S. Congress or Executive Orders, could have a material adverse effect on Northfield Bancorp and Northfield Bank, including their business, financial condition, results of operations, or prospects.

Set forth below is a brief description of material regulatory requirements that are or will be applicable to Northfield Bank and Northfield Bancorp. The description is limited to certain material aspects of the statutes and regulations addressed and is not intended to be a complete description of such statutes and regulations and their effects on Northfield Bank and Northfield Bancorp and is qualified in its entirety by reference to applicable laws, regulations, and supervisory guidance.

Business Activities

A federal savings bank derives its lending and investment authority primarily from the Home Owners’ Loan Act, as amended ("HOLA"), and applicable federal regulations. Under these laws and regulations, Northfield Bank is authorized to originate mortgage loans secured by residential and commercial real estate, commercial business loans, and consumer loans, and to invest in certain types of debt securities and other permissible assets. Certain types of lending, such as commercial and consumer loans, are subject to statutory and regulatory aggregate limits calculated as a specified percentage of Northfield Bank’s capital or total assets. Northfield Bank also may establish and invest in subsidiaries that may engage in a variety of activities, including certain real estate-related activities and securities and insurance brokerage services that are not otherwise permissible to be conducted directly by Northfield Bank.

Loans-to-One-Borrower

Generally, Northfield Bank may not make a loan or extend credit to a single or related group of borrowers in an amount that exceeds 15% of Northfield Bank’s capital and surplus. An additional amount of 10% of capital and surplus may be loaned if the extension of credit is fully secured by readily marketable collateral. Readily marketable collateral generally includes certain financial instruments and bullion, but does not include real estate. As of December 31, 2025, Northfield Bank was in compliance with its loans-to-one-borrower limitations.

Qualified Thrift Lender Test

As a federally chartered savings bank, Northfield Bank is required to satisfy a qualified thrift lender (“QTL”) test, under which Northfield Bank either must qualify as a “domestic building and loan” association as defined by the Internal Revenue Code or maintain at least 65% of its “portfolio assets” in “qualified thrift investments.” “Qualified thrift investments” consist primarily of residential mortgage loans and related investments, including mortgage-backed and related securities. “Portfolio assets” generally are defined as total assets less specified liquid assets up to 20% of total assets, goodwill, and other intangible assets and the value of property used to conduct business. A federal savings bank that fails the QTL test must operate under statutorily prescribed restrictions. Federal law also provides that noncompliance with the QTL test may subject the institution to supervisory or enforcement action. As of December 31, 2025, Northfield Bank maintained 78.0% of its portfolio assets in qualified thrift investments and, therefore, was in compliance with the QTL test.

Standards for Safety and Soundness

Federal law requires each federal banking agency to prescribe for insured depository institutions under its jurisdiction standards relating to, among other things, internal controls, information systems and internal audit systems, loan documentation, credit underwriting, interest rate risk exposure, asset growth, employee compensation, and other operational and managerial standards as the agency deems appropriate. The federal banking agencies adopted the Interagency Guidelines Prescribing Standards for Safety and Soundness to implement the safety and soundness standards required under federal law. These guidelines establish safety and soundness standards used by the federal banking agencies to identify and address problems at insured depository institutions before capital becomes impaired. If the appropriate federal banking agency determines that an institution fails to meet any standard prescribed by the guidelines, the agency may require the institution to submit to the agency an acceptable plan to achieve compliance with the standard. If an institution fails to submit or implement an acceptable plan, the appropriate federal banking agency may issue an enforceable order requiring correction action.

Capital Requirements

Federal regulations require federally insured depository institutions to meet several minimum capital standards: a common equity Tier 1 capital to risk-based assets ratio of 4.5%, a Tier 1 capital to risk-based assets ratio of 6.0%, a total capital to risk-based assets ratio of 8.0%, and a 4.0% Tier 1 capital to total assets leverage ratio.

In determining the amount of risk-weighted assets for purposes of calculating risk-based capital ratios, all assets, including certain off-balance sheet assets (e.g., recourse obligations, direct credit substitutes, residual interests) are multiplied by a risk weight factor assigned by the regulations based on the risks believed inherent in the type of asset. Higher levels of capital are required for asset categories believed to present greater risk. Common equity Tier 1 capital generally is defined as common stockholders’ equity and retained earnings. Tier 1 capital generally is defined as common equity Tier 1 capital plus additional Tier 1 capital. Additional Tier 1 capital includes certain noncumulative perpetual preferred stock and related surplus and minority interests in equity accounts of consolidated subsidiaries. Total capital includes Tier 1 capital (common equity Tier 1 capital plus additional Tier 1 capital) and Tier 2 capital. Tier 2 capital is comprised of capital instruments and related surplus, meeting specified requirements, and may include cumulative preferred stock and long-term perpetual preferred stock, mandatory convertible securities, intermediate preferred stock and subordinated debt. Also included in Tier 2 capital is the allowance for credit losses limited to a maximum of 1.25% of risk-weighted assets, and certain other items. In assessing an institution’s capital adequacy, the OCC takes into consideration not only these numeric factors, but qualitative adjustments as well, and has the authority to establish higher capital requirements for individual institutions when deemed necessary.

In addition to establishing the minimum regulatory capital requirements, the regulations limit capital distributions and certain discretionary bonus payments to management if the institution does not hold a “capital conservation buffer” consisting of 2.5% of common equity Tier 1 capital to risk-weighted assets above the amount necessary to meet its minimum risk-based capital requirements.

The federal banking agencies, including the OCC, are required to specify for qualifying institutions with less than $10 billion of assets an alternative “community bank leverage ratio” that ranges between 8% to 10% of consolidated assets. Institutions with capital levels meeting or exceeding the specified requirement and choosing the alternative regulatory capital framework are considered to comply with the applicable regulatory capital requirements, including all risk-based requirements. The elective community bank leverage ratio has been currently established at 9.0% Tier 1 capital to average total consolidated assets. In November 2025, the federal banking agencies, including the OCC, issued a proposed rule to lower the community bank leverage ratio to 8.0%. Eligible institutions may opt into and out of the community bank leverage ratio framework on their quarterly call report. Northfield Bank elected to opt into the framework effective March 31, 2020.

As of December 31, 2025, Northfield Bancorp and Northfield Bank exceeded all capital adequacy requirements to which they were subject. Further, per regulatory guidelines, the Bank is categorized as a "well-capitalized" institution under the prompt corrective action regulations discussed below. See Note 15 of the Notes to the consolidated financial statements for further discussion about Regulatory Requirements.

Prompt Corrective Regulatory Action

Federal law requires, among other things, that federal bank regulators take “prompt corrective action” with respect to institutions that do not meet minimum capital requirements. For this purpose, the law establishes five capital categories: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized. Under the applicable regulations, an institution is deemed to be “well capitalized” if it has a total risk-based capital ratio of 10.0% or greater, a Tier 1 risk-based capital ratio of 8.0% or greater, a leverage ratio of 5.0% or greater, and a common equity Tier 1 capital ratio of 6.5% or greater. An institution is deemed to be “adequately capitalized” if it has a total risk-based capital ratio of 8.0% or greater, a Tier 1 risk-based capital ratio of 6.0% or greater, a leverage ratio of 4.0% or greater, and a common equity Tier 1 capital ratio of 4.5% or greater. An institution is deemed to be “undercapitalized” if it has a total risk-based capital ratio of less than 8.0%, a Tier 1 risk-based capital ratio of less than 6.0%, a leverage ratio of less than 4.0%, or a common equity Tier 1 capital ratio of less than 4.5%. An institution is deemed to be “significantly undercapitalized” if it has a total risk-based capital ratio of less than 6.0%, a Tier 1 risk-based capital ratio of less than 4.0%, a leverage ratio of less than 3.0%, or a common equity Tier 1 capital ratio of less than 3.0%. An institution is deemed to be “critically undercapitalized” if it has a ratio of tangible equity (as defined in the regulations) to total assets that is equal to or less than 2.0%.

The regulations provide that a capital restoration plan must be filed with the OCC within 45 days of the date a federal savings association receives notice that it is “undercapitalized,” “significantly undercapitalized” or “critically undercapitalized.” Any holding company for the federal savings association required to submit a capital restoration plan must guarantee the lesser of an amount equal to 5.0% of the savings association’s assets at the time it was notified or deemed to be undercapitalized by the OCC, or the amount necessary to restore the savings association to adequately capitalized status. This guarantee remains in place until the OCC notifies the federal savings association that it has maintained adequately capitalized status for each of four consecutive calendar quarters, and the OCC has the authority to require payment and collect payment under the guarantee. Various restrictions, including on growth and capital distributions, also apply to “undercapitalized” institutions. If an “undercapitalized” institution fails to submit an acceptable capital restoration plan, it is treated as “significantly undercapitalized.” “Significantly undercapitalized” institutions must comply with one or more additional restrictions including, but not limited to: an order by the OCC to sell sufficient voting stock to become adequately capitalized; requirements to reduce total assets, cease receipt of deposits from correspondent banks or dismiss officers or directors; and restrictions on interest rates paid on deposits, compensation of executive officers and capital distributions by the parent holding company. The OCC may also take any one of a number of discretionary supervisory actions against undercapitalized institutions, including the issuance of a capital directive and the replacement of senior executive officers and directors.

The previously referenced final rule that establishes an elective “community bank leverage ratio” provides that a qualifying institution whose Tier 1 capital equals or exceeds the specified community bank leverage ratio and opts into that framework will be considered to be “well capitalized” for purposes of prompt corrective action.

Capital Distributions

Federal regulations restrict “capital distributions” by federal savings associations. For purposes of these regulations, capital distributions generally include cash dividends and other transactions that are charged to the capital account of a federal savings association. A federal savings association must file an application with the OCC for approval of the capital distribution if:

•the total capital distributions for the applicable calendar year exceeds the sum of the institution’s net income for that year to date plus the institution’s retained net income for the preceding two years that is still available for dividend;

•the institution would not be at least adequately capitalized following the distribution;

•the distribution would violate any applicable statute, regulation, written agreement or regulatory condition; or

•the institution is not eligible for expedited review of its filings (i.e., generally, institutions that do not have safety and soundness, compliance and Community Reinvestment Act ratings in the top two categories or that fail a capital requirement).

A federal savings association that is a subsidiary of a holding company, as in the case with Northfield Bank, must file a notice with the FRB at least 30 days before the Board of Directors declares any dividend and receive FRB non-objection to the payment of the dividend.

Applications or notices may be denied if the institution will be undercapitalized after the proposed dividend, the proposed dividend raises safety and soundness concerns or the proposed dividend would violate a law, regulation, written agreement, or regulatory condition.

In the event that a federal savings association's capital falls below its regulatory requirements or it is notified by the regulatory agency that it is in need of more than normal supervision, its ability to make capital distributions would be restricted. In addition, any proposed capital distribution could be prohibited if the regulatory agency determines that the distribution would constitute an unsafe or unsound practice.

Transactions with Affiliates and Extensions of Credit to Insiders

A federal savings association’s authority to engage in transactions with its “affiliates” is limited by Sections 23A and 23B of the Federal Reserve Act and its implementing regulation, Regulation W, as made applicable to the association by the Home Owner's Loan Act. The term “affiliate” generally includes any company that controls or is under common control with a federal savings association, including Northfield Bancorp, and the savings association subsidiaries of that savings association. Certain other subsidiaries of the federal savings association, however, are not considered affiliates. Applicable law limits the aggregate amount of “covered transactions” with any individual affiliate, including loans to the affiliate, to 10% of the capital stock and surplus of the federal savings association. The aggregate amount of covered transactions with all affiliates is limited to 20% of the federal savings association’s capital stock and surplus. Certain “covered transactions” with affiliates, such as loans to or guarantees issued on behalf of affiliates, are required to be secured by specified amounts of collateral. Purchasing low quality assets from affiliates is generally prohibited. Regulation W also provides that transactions with affiliates, including covered transactions, must be on terms and under circumstances, including credit standards, that are substantially the same as, or at least as favorable to the federal savings association as those prevailing at the time for comparable transactions with or involving non-affiliated companies. In addition, federal savings associations are prohibited by law from lending to any affiliate that is engaged in activities that are not permissible for bank holding companies, and no such savings association may purchase the securities of any affiliate other than a subsidiary.

Authority to extend credit to the “executive officers” (as defined under Regulation O), directors and 10% or greater shareholders of federal savings associations and their affiliates (insiders), as well as to entities controlled by insiders (related interests), is governed by Sections 22(g) and 22(h) of the Federal Reserve Act and its implementing regulation, Regulation O, as made applicable to the association by the Home Owner's Loan Act. Among other things, loans to insiders must be made on terms substantially the same as, and following credit underwriting procedures that are not less stringent than, those prevailing at the time for comparable transactions with unaffiliated individuals, and may not involve more than the normal risk of repayment or present other unfavorable features. There is an exception for institution-wide lending programs available to all employees that do not give preference to insiders. Regulation O also places individual and aggregate limits on the amount of loans that may be made to insiders and their related interests based, in part, on the institution’s capital position, and requires that certain prior board approval procedures be followed. Extensions of credit to executive officers are subject to additional restrictions on the types and amounts of loans that may be made. At December 31, 2025, Northfield Bank was in compliance with the applicable laws and regulations governing transactions with affiliates and extensions of credit to insiders.

Enforcement

The OCC has primary enforcement responsibility over federal savings associations, including the authority to bring enforcement actions against “institution-related parties,” a term that includes officers, directors, certain shareholders, as well as attorneys, appraisers and accountants who knowingly or recklessly participate in specified misconduct which caused or is likely to cause a financial loss to or an adverse effect on an insured institution. Formal enforcement actions may range from the issuance of a capital directive or "cease and desist" order to removal of officers and/or directors of the institution, to appointment of a receiver or conservator, or the termination of deposit insurance. Civil money penalties can be assessed for a wide range of violations of law and regulation, unsafe or unsound practices, and breaches of fiduciary duty. The maximum penalties that can be assessed are generally based on the type and severity of the violation, unsafe or unsound practice or breach, and are adjusted annually for inflation.

Deposit Insurance

Northfield Bank is a member of the Deposit Insurance Fund, which is administered by the FDIC. Deposit accounts in Northfield Bank are insured by the FDIC up to a maximum of $250,000 per depositor, per ownership category, for each separately insured depositor.

The FDIC assesses insured depository institutions to maintain the Deposit Insurance Fund. Under the FDIC’s risk-based assessment system, institutions deemed to present lower risk pay lower assessments. Assessments for institutions with less than $10 billion in assets are based on financial measures and supervisory ratings derived from statistical modeling estimating the probability of an institution’s failure within three-years period.

The FDIC has authority to increase deposit insurance assessments. Effective January 1, 2023, assessment rates for institutions of Northfield Bank's size range from 2.5 to 32 basis points. Any significant future increases would have an adverse effect on the operating expenses and results of operations of Northfield Bank. Future insurance assessments cannot be predicted.

Insurance of deposits may be terminated by the FDIC upon a finding that an institution has engaged in unsafe or unsound practices, is in an unsafe or unsound condition to continue operations, or has violated any applicable law, regulation, rule, order or condition imposed by FDIC in writing. Management of Northfield Bank does not know of any practice, condition, or violation that may lead to termination of Northfield Bank’s deposit insurance.

Federal Home Loan Bank System

Northfield Bank is a member of the FHLBNY, and therefore is a member of the FHLB System, which consists of 11 regional FHLBs. The FHLB System provides a central credit facility primarily for member institutions. Members of the FHLB are required to purchase and hold a specified amount of shares of FHLB capital stock. As of December 31, 2025, Northfield Bank was in compliance with this requirement. The FHLB imposes various limitations on advances such as limiting the amount of certain types of real estate related collateral and limiting total advances to a member.

Community Reinvestment Act

Federal savings associations have a responsibility under the Community Reinvestment Act ("CRA") and its implementing regulations to help meet the credit needs of their communities, including low- and moderate-income neighborhoods, consistent with safe and sound banking practices. An institution’s record of performance under the CRA is considered by its primary federal regulator in evaluating applications for branching, mergers, acquisitions, and other expansionary activities. Failure to comply with CRA requirements could, at a minimum, result in regulatory restrictions on such activities. In the most recent Community Reinvestment Act Public Disclosure issued by the OCC as of May 15, 2023, Northfield Bank was rated “Satisfactory.”

In October 2023, the federal banking agencies issued a joint final rule to modernize their regulations implementing the CRA. In March 2024, a federal court issued a preliminary injunction preventing the implementation and enforcement of the modernization rule. As a result, Northfield Bank continues to be evaluated under the existing CRA regulations framework adopted in 1995, as subsequently amended, which remains in effect. In 2025, the federal banking agencies issued a Notice of Proposed Rulemaking (“NPR”) to revise the CRA framework in light of the injunction; however, the timing, content, and implementation of any final rule remain uncertain. Management does not currently expect these developments to affect the Bank’s existing CRA compliance obligations or most recent CRA rating, although future regulatory changes could affect CRA evaluation standards or regulatory approvals.

Other Regulations

Interest and other charges collected or contracted for by Northfield Bank are subject to state usury laws and federal laws concerning interest rates. Northfield Bank’s operations are also subject to federal laws applicable to credit transactions, such as the:

•Truth-In-Lending Act, governing disclosures of credit terms to consumer borrowers;

•Real Estate Settlement Procedures Act, requiring that borrowers for mortgage loans for one-to-four family residential real estate receive various disclosures, including good faith estimates of settlement costs, lender servicing and escrow account practices, and prohibiting certain practices that increase the cost of settlement services;

•Home Mortgage Disclosure Act, requiring financial institutions to provide information to enable the public and public officials to determine whether a financial institution is fulfilling its obligation to help meet the housing needs of the community it serves;

•Equal Credit Opportunity Act and the Fair Housing Act, prohibiting discrimination on the basis of race, creed or other prohibited factors in extending credit;

•Fair Credit Reporting Act, governing the use and provision of information to credit reporting agencies;

•Fair Debt Collection Practices Act, governing the manner in which consumer debts may be collected;

•Flood Disaster Protection Act, requiring flood insurance of collateral properties located in designated flood zones;

•Servicemembers Civil Relief Act, providing a wide range of protections in lending for individuals entering or called to active duty in the military, and for deployed service members; and

•Rules and regulations of the various federal agencies charged with the responsibility of implementing such federal laws.

The operations of Northfield Bank also are subject to the:

•The Bank Secrecy Act and USA PATRIOT Act, which require federal savings associations to, among other things, establish anti-money laundering and countering the financing of terrorism compliance programs, including customer identification programs, and customer due diligence policies and controls, designed to detect and deter money laundering, terrorist financing, and other illicit activities;

•Regulations of the Office of Foreign Assets Control, which enforce economic and trade sanctions against targeted foreign countries and regimes, individuals, and organizations;

•Truth in Savings Act (Regulation DD), which governs consumer deposit account disclosures and advertising;

•Expedited Funds Availability Act (Regulation CC) and the Check Clearing for the 21 Act (Check 21), governing funds availability, check processing, and relate disclosure requirements;

•Right to Financial Privacy Act, which imposes a duty to maintain confidentiality of consumer financial records and prescribes procedures for complying with administrative subpoenas of financial records;

•Electronic Funds Transfer Act (implemented by Regulation E), which governs electronic fund transfers to and from customers deposit accounts including automatic deposits and withdrawals, and established consumer's rights, responsibilities, and liability limits related to the use of automated teller machines, debit cards, and other electronic banking services; and

•The Gramm-Leach-Bliley Act, which places limitations on the sharing of consumer financial information by financial institutions with unaffiliated third parties and requires all financial institutions offering products or services to retail customers to provide such customers with the financial institution’s privacy policy and allow such customers the opportunity to “opt out” of the sharing of certain personal financial information with unaffiliated third parties.

Holding Company Regulation

Northfield Bancorp is considered a unitary savings and loan holding company subject to regulation and supervision by the FRB. The FRB has enforcement authority over Northfield Bancorp and its non-savings association subsidiaries. Among other things, that authority permits the FRB to restrict or prohibit activities that are determined to be a risk to Northfield Bancorp or its subsidiary savings association.

The business activities of savings and loan holding companies are generally limited to those activities permissible for bank holding companies under Section 4(c)(8) of the Bank Holding Company Act, subject to the prior approval of the FRB, and certain additional activities authorized by FRB regulations, unless the holding company has elected “financial holding company” status. A financial holding company may engage in activities that are financial in nature, including underwriting equity securities and insurance as well as activities that are incidental to financial activities or complementary to a financial activity. Northfield Bancorp has not elected financial holding company status. Federal law generally prohibits the acquisition of more than 5% of a class of voting stock of a company engaged in impermissible activities.

Federal law prohibits a savings and loan holding company, directly or indirectly, or through one or more subsidiaries, from acquiring more than 5% of another savings association or savings and loan holding company without prior written approval of the FRB and from acquiring or retaining control of any depository institution not insured by the FDIC. In evaluating applications by savings and loan holding companies to acquire savings associations, the FRB must consider such things as the financial and managerial resources and future prospects of the company and institution involved, the effect of the acquisition on the institution, the risk to the federal Deposit Insurance Fund, the convenience and needs of the community, and competitive factors. An acquisition by a savings and loan holding company of a savings association in another state to be held as a separate subsidiary may not be approved unless it is a supervisory acquisition under Section 13(k) of the Federal Deposit Insurance Act or the law of the state in which the target is located authorizes such acquisitions by out-of-state companies.

Savings and loan holding companies above $3 billion in consolidated assets, such as Northfield Bancorp, are subject to consolidated regulatory capital requirements that are as stringent as those required for their insured depository subsidiaries. Consolidated regulatory capital requirements identical to those applicable to the subsidiary depository institutions (including the community bank leverage ratio alternative) also apply to savings and loan holding companies. Northfield Bancorp exceeded the FRB’s consolidated capital requirements as of December 31, 2025.

Federal law applies the FRB's “source of strength” doctrine to savings and loan holding companies. The FRB has issued regulations implementing the “source of strength” policy that require holding companies to act as a source of strength to their subsidiary depository institutions by providing capital, liquidity, managerial, and other support in times of financial stress.

The FRB has issued a policy statement regarding the payment of dividends and the repurchase of shares of common stock by bank and savings and loan holding companies. In general, the policy provides that dividends should be paid only out of current earnings and only if the prospective rate of earnings retention by the holding company appears consistent with the organization’s capital requirements, asset quality and overall financial condition. Regulatory guidance provides for prior regulatory review of capital distributions in certain circumstances such as where the holding company’s net income for the past four quarters, net of dividends previously paid over that period, is insufficient to fully fund the dividend or the holding company’s overall rate of earnings retention is inconsistent with the company’s capital needs and overall financial condition. The guidance also provides for prior consultation with supervisory staff for material increases in the amount of a holding company’s common stock dividend. The ability of a holding company to pay dividends may also be restricted if a subsidiary bank becomes undercapitalized. Regulatory guidance specifies that a holding company should advise FRB supervisory staff prior to redeeming or repurchasing common or perpetual preferred stock, to provide opportunity for supervisory review, and possible objection, when the holding company is experiencing financial weaknesses or the repurchase or redemption would result in a net reduction as of the end of a quarter in the amount of such equity instruments outstanding compared with the beginning of the quarter in which the redemption or repurchase occurs. These regulatory policies could affect the ability of Northfield Bancorp to pay dividends, repurchase common stock or otherwise engage in capital distributions.

Federal Securities Laws

Northfield Bancorp’s common stock is registered with the SEC under the Securities Exchange Act of 1934, as amended. Northfield Bancorp is subject to the information reporting, proxy solicitation, insider trading restrictions, and other requirements and regulations under the Securities Exchange Act of 1934.

Sarbanes-Oxley Act

The Sarbanes-Oxley Act of 2002 ("SOX") addresses, among other matters, corporate governance, auditing and accounting, executive compensation, and enhanced and timely disclosure of corporate information. Northfield Bancorp has established and maintains policies, procedures and internal control systems designed to comply with the applicable provisions of SOX and related SEC rules and regulations.

Change in Bank Control Act and Regulations

Under the Change in Bank Control Act, no person may acquire control of a savings and loan holding company, such as Northfield Bancorp, unless the FRB has been given at least 60 days prior written notice and has not issued a notice disapproving the proposed acquisition, taking into consideration certain factors, including the financial and managerial resources of the acquirer and the competitive effects of the acquisition. Other statutory factors may also be considered. Control, as defined under the Change in Bank Control Act and its implementing regulations, means the power, directly or indirectly, to direct the management or policies of an insured depository institution, or the ownership, control of or the power to vote 25% or more of any class of voting stock. Acquisition of more than 10% of any class of a savings and loan holding company’s voting stock constitutes a rebuttable determination of control under the regulations under certain circumstances, including where, as is the case with Northfield Bancorp, the issuer has registered securities under Section 12 of the Securities Exchange Act of 1934.

Federal Taxation

General. Northfield Bank and Northfield Bancorp are subject to federal income taxation in the same general manner as other corporations, with some exceptions discussed below. Northfield Bancorp's consolidated federal tax returns are not currently under audit.

The following discussion of federal taxation is intended only to summarize certain pertinent federal income tax matters and is not a comprehensive description of the tax rules applicable to Northfield Bancorp or Northfield Bank.

Method of Accounting. For federal income tax purposes, Northfield Bancorp currently reports its income and expenses on the accrual method of accounting and uses a tax year ending December 31 for filing its federal and state income tax returns.

Bad Debt Reserves. Historically, Northfield Bank was subject to special provisions in the tax law applicable to qualifying savings banks regarding allowable tax bad debt deductions and related reserves. Tax law changes were enacted in 1996 that eliminated the ability of savings banks to use the percentage of taxable income method for computing tax bad debt reserves for tax years after 1995, and required recapture into taxable income over a six-year period of all bad debt reserves accumulated after a savings bank’s last tax year beginning before January 1, 1988.

Northfield Bank recaptured its post December 31, 1987, bad-debt reserve balance over the six-year period ended December 31, 2004. Northfield Bancorp is required to use the specific charge-off method to account for tax bad debt deductions.

Taxable Distributions and Recapture. Prior to 1996, bad debt reserves created prior to 1988 were subject to recapture into taxable income if Northfield Bank failed to meet certain thrift asset and definitional tests or made certain distributions. Tax law changes in 1996 eliminated thrift-related recapture rules. However, under current law, pre-1988 tax bad debt reserves remain subject to recapture if Northfield Bank makes certain non-dividend distributions, repurchases any of its common stock, pays dividends in excess of earnings and profits, or fails to qualify as a “bank” for tax purposes. At December 31, 2025, the total federal pre-base year bad debt reserve of Northfield Bank was approximately $5.9 million.

Corporate Dividends-Received Deduction. Northfield Bancorp may exclude from its federal taxable income 100% of dividends received from Northfield Bank as a wholly-owned subsidiary by filing consolidated tax returns. Through December 31, 2017, the corporate dividends-received deduction was 80% in the case of dividends received from a corporation in which a corporate recipient owns at least 20% of its stock, and corporations that own less than 20% of the stock of a corporation distributing a dividend could deduct only 70% of dividends received or accrued on their behalf. Effective January 1, 2018, the dividends received deduction decreased from 80% to 65% and 70% to 50% for corporate recipients owning at least 20% or less than 20%, respectively, of a corporation’s stock.

Inflation Reduction Act of 2022. The Inflation Reduction Act, which was signed into law on August 16, 2022, among other things, implements a new alternative minimum tax of 15% on corporations with profits in excess of $1 billion, a 1% excise tax on stock repurchases, and several tax incentives to promote clean energy and climate initiatives. These provisions are effective beginning January 1, 2023.

State Taxation

New York State Taxation. In 2014, New York State enacted significant and comprehensive reforms to its corporate tax system that went into effect January 1, 2015. The legislation resulted in significant changes to the method of calculating income taxes for banks, including changes to future period tax rates, rules relating to the sourcing of income, and the elimination of the banking corporation tax so that banking corporations are taxed under New York State’s corporate franchise tax. The corporate franchise tax is based on the combined entire net income of the Company and its affiliates allocable and apportionable to New York State and taxed at a rate of 7.25%. New York State also imposes the Metropolitan Transportation Authority (“MTA”) Tax Surcharge allocable to business activities carried on in the Metropolitan Commuter Transportation District. The MTA surcharge rate for 2023 was 30.0%, and will remain at 30.0% until otherwise adjusted.

New York City Taxation. Northfield Bank reports income on a calendar year basis to New York City and is subject to the New York City Financial Corporation Tax calculated, subject to a New York City income and expense allocation, on a similar basis as the New York State Tax, at a rate of 8.85%.

New Jersey State Taxation. Northfield Bancorp and Northfield Bank file New Jersey Corporation Business Tax returns on a calendar year basis. Generally, the income derived from New Jersey sources is subject to New Jersey tax. Northfield Bancorp and Northfield Bank pay the greater of the corporate business tax at 9% of taxable income or the minimum tax of $2,000 per entity. For 2019 and prospectively, New Jersey law requires combined filing for certain members of an affiliated group, but excluded companies that qualify as investment companies and real estate investment trusts. For periods ending on or after July 31, 2023, investment companies and real estate investment trusts are required to be included in the combined filing unless they are owned 50% or more by a bank with assets that do not exceed $15 billion. The allocation and apportionment of taxable income to New Jersey may affect the overall tax rate. On June 28, 2024, the State of New Jersey enacted legislation that imposes a temporary 2.5% surtax, named the “Corporate Transit Fee”, on certain corporate taxpayers for tax years beginning January 1, 2024 through December 31, 2028.

Northfield Bancorp is under audit in New Jersey for tax years 2021 through 2024.

Delaware State Taxation. As a Delaware business corporation, Northfield Bancorp is required to file an annual report with and pay franchise taxes to the state of Delaware.

ITEM 1A. RISK FACTORS

Certain material risks and uncertainties that management believes affect us are described below. You should carefully consider the risks and uncertainties described below, together with all of the other information included or incorporated by reference herein as well as in other documents we file with the SEC. The risks and uncertainties described below are not the only ones facing us. Additional risks and uncertainties that management currently is not aware of or focused on or that management currently deems immaterial may also impair our business operations. This report is qualified in its entirety by these risk factors. See also, “Forward-Looking Statements.”

Risks related to the announced merger with Columbia Financial, Inc.

There is no assurance when or if the Merger will be completed.

Completion of the Merger is subject to satisfaction or waiver of a number of conditions. The Company and Columbia Financial currently anticipate the Merger will close in the third quarter of 2026, however there can be no assurance that the closing conditions will be fulfilled or can be fulfilled in a timely manner. Additionally, the Company and Columbia Financial can terminate the Merger Agreement under specified circumstances.

Regulatory approvals required to complete the Merger may not be received, may take longer than expected or may impose conditions that are not presently anticipated or cannot be met.

Before the Merger may be completed, the Company and Columbia Financial must obtain approvals from, or provide notice to, the FRB and the OCC. In determining whether to grant these approvals, the applicable regulatory authorities consider a variety of factors. These regulatory authorities may impose conditions on the granting of such approvals. Such conditions or changes and the process of obtaining regulatory approvals could have the effect of delaying completion of the Merger or of imposing additional costs or limitations on the combined company following the Merger. The regulatory approvals may not be received at all, may not be received in a timely fashion, or may contain conditions on the completion of the Merger that are not anticipated or cannot be met. If the consummation of the Merger is delayed, including by a delay in receipt of necessary regulatory approvals, the business, financial condition and results of operations of the Company may also be materially and adversely affected.

Failure to complete the Merger, the termination of the Merger Agreement or a significant delay in the consummation of the Merger could negatively impact the Company.

The Merger Agreement is subject to a number of conditions which must be fulfilled to complete the Merger. In addition, if the Merger is not completed by January 31, 2027 either Columbia Financial or the Company may choose to terminate the Merger Agreement at any time after that date, provided that the failure to complete the Merger on or before that date is not due to the failure of the party seeking to terminate the Merger Agreement to perform or observe the covenants and agreements of such party under the Merger Agreement. If the Merger is not consummated, the ongoing business, financial condition and results of operations of the Company may be materially adversely affected and the market price of the Company’s common stock may decline significantly, particularly to the extent that the current market price reflects the assumption that the Merger will be consummated.

In addition, the Company has incurred and will further incur substantial expenses in connection with the completion of the Merger. If the Merger is not completed, the Company would have to recognize these expenses without realizing the expected benefits of the Merger. Any of the foregoing, or other risks arising in connection with the failure of or delay in consummating the Merger, could have a material adverse effect on the Company’s business, financial condition and results of operations. If the Merger Agreement is terminated and the Company’s board of directors seeks another Merger or business combination, the Company’s stockholders cannot be certain that the Company will be able to find a party willing to engage in a transaction on more attractive terms than the Merger with Columbia Financial.

The Company will be subject to business uncertainties and contractual restrictions while the Merger is pending.

Uncertainty about the effect of the Merger on employees, customers and vendors may have an adverse effect on the business, financial condition and results of operations of the Company. These uncertainties may impair the Company’s ability to attract, retain and motivate key personnel and customers pending the consummation of the Merger, as such key personnel and customers may experience uncertainty about their future roles and relationships following the consummation of the Merger. Additionally, these uncertainties could cause customers, vendors and others who deal with the Company to seek to change existing business relationships with the Company or fail to extend an existing relationship with the Company. In addition, competitors may target the Company’s existing customers by highlighting potential uncertainties and integration difficulties that may result from the Merger.

The pursuit of the Merger and the preparation for the integration may place a burden on the Company’s management and internal resources. Any significant diversion of management attention away from ongoing business concerns and any difficulties encountered in the transition and integration process could have a material adverse effect on the Company’s business, financial condition and results of operations. In addition, the Merger Agreement restricts each party from taking certain actions without the other party’s consent while the Merger is pending. These restrictions could have a material adverse effect on the Company’s business, financial condition and results of operations.

The Merger Agreement contains provisions that may discourage other companies from pursuing, announcing or submitting a business combination proposal to the Company that might result in greater value to the Company’s stockholders.

The Merger Agreement contains provisions that may discourage a third party from pursuing, announcing or submitting a business combination proposal to the Company that might result in greater value to the Company’s stockholders than the Merger with Columbia Financial. These provisions include a general prohibition on the Company from soliciting, or, subject to certain exceptions, entering into discussions with any third party regarding any acquisition proposal or offers for competing transactions. Furthermore, if the Merger Agreement is terminated, under certain circumstances, the Company may be required to pay Columbia Financial a termination fee of approximately $23.7 million.

Litigation against the Company or Columbia Financial, or the members of the Company’s or Columbia Financial’s board of directors, could prevent or delay the completion of the Merger.

Purported stockholder plaintiffs may assert legal claims related to the Merger. The results of any such potential legal proceeding would be difficult to predict and such legal proceedings could delay or prevent the Merger from being completed in a timely manner. Moreover, any litigation could be time consuming and expensive, and could divert attention of the Company’s and Columbia Financial's respective management teams away from their companies’ regular business. Any lawsuit adversely resolved against the Company, Columbia Financial or members of their respective boards of directors, could have a material adverse effect on each party’s business, financial condition and results of operations.

Risks Related to Our Lending Activities

The level of our commercial real estate loan portfolio subjects us to additional regulatory scrutiny.

The OCC and the other federal bank regulatory agencies have promulgated joint guidance on sound risk management practices for financial institutions with concentrations in commercial real estate lending. Under the guidance, a financial institution that, like us, is actively involved in commercial real estate lending should perform a risk assessment to identify concentrations. A financial institution may have a concentration in commercial real estate lending if, among other factors, (i) total reported loans for construction, land acquisition and development, and other land represent 100% or more of total capital and the outstanding balance of a financial institution's commercial real estate loan portfolio has increased 50% or more during the prior 36 months, or (ii) total reported loans secured by multifamily and non-farm residential properties, loans for construction, land acquisition and development and other land, and loans otherwise sensitive to the general commercial real estate market, including loans to commercial real estate related entities, represent 300% or more of total capital.

Based on these factors we have a concentration in multifamily and commercial real estate lending, as such loans represented approximately 380.2% of Northfield Bank's capital as of December 31, 2025. The particular focus of the guidance is on exposure to commercial real estate loans that are dependent on the cash flow from the real estate held as collateral and that are likely to be at greater risk to conditions in the commercial real estate market (as opposed to real estate collateral held as a secondary source of repayment or as an abundance of caution). The guidance guides banks in developing risk management practices and capital levels commensurate with the level and nature of real estate concentrations. The guidance states that management should employ heightened risk management practices including board and management oversight and strategic planning, development of underwriting standards, risk assessment, and monitoring through market analysis and stress testing. While we believe we have implemented policies and procedures with respect to our commercial real estate loan portfolio consistent with this guidance, bank regulators could require us to implement additional policies and procedures consistent with their interpretation of the guidance that may result in additional costs to us or that may result in a curtailment of our multifamily and commercial real estate lending and/or the requirement that we maintain higher levels of regulatory capital, either of which would adversely affect our loan originations and profitability.

Our concentration in multifamily loans and commercial real estate loans could expose us to increased lending risks and related credit losses.

Our business strategy historically was to originate multifamily loans and, to a lesser extent, other commercial real estate loans, although more recently it is to originate commercial and industrial and owner-occupied commercial real estate loans, and, to a lesser extent, multifamily loans, other commercial real estate loans, one-to-four family residential loans (non-owner occupied investment properties), construction and land loans, and home equity loans and lines of credit. At December 31, 2025, $3.27 billion, or 84.9%, of our loan portfolio held-for-investment, net, consisted of multifamily and other commercial real estate loans.

These types of loans generally expose a lender to greater risk of non-payment and loss than one-to-four family residential mortgage loans because repayment of the loans often depends on the successful operation of the properties and the sale of such properties securing the loans. Such loans typically involve larger loan balances to single borrowers or groups of related borrowers compared to one-to-four family residential mortgage loans. Also, many of our borrowers have more than one of these types of loans outstanding. Consequently, an adverse development with respect to one loan or one credit relationship can expose us to a significantly greater risk of loss compared to an adverse development with respect to a one-to-four family residential real estate loan.

In addition, if loans that are collateralized by real estate become troubled and the value of the real estate has been significantly impaired, then we may not be able to recover the full contractual amount of principal and interest that we anticipated at the time we originated the loan, which could cause us to increase our provision for credit losses and adversely affect our operating results and financial condition.

Our New York State multifamily loan portfolio could be adversely impacted by changes in legislation or regulation.

In 2019, the New York State legislature passed the Housing Stability and Tenant Protection Act of 2019, impacting about one million rent regulated apartment units. Among other things, the legislation: (i) curtails rent increases from material capital improvements and individual apartment improvements; (ii) all but eliminates the ability for apartments to exit rent regulation; (iii) does away with vacancy decontrol and high-income deregulation; and (iv) repealed the 20% vacancy bonus. This legislation generally limits a landlord’s ability to increase rents on rent-regulated apartments and makes it more difficult to convert rent regulated apartments to market rate apartments. For example, the New York City Rent Guidelines Board established that on certain apartments, for a one-year lease beginning on or after September 30, 2024, the maximum rent increase is 3.0%, even though the overall inflation rate increased at a higher rate. Further restrictions on rent-regulated properties may be enacted or existing restrictions strengthened as a result of the recent New York City mayoral elections. As a result, the value of the collateral located in New York State securing our multifamily loans or the future net operating income of such properties could potentially become impaired. At December 31, 2025, the Company had approximately $418.8 million of New York multifamily loans, or 10.9% of our total loan portfolio, that have some form of rent stabilization or rent control.

Our concentration of loans in certain industries could have adverse effects on credit quality.

As of December 31, 2025, the Bank's loan portfolio included (i) lessors of office buildings of $174.7 million, or 19.2%, of commercial real estate loans; and (ii) borrowers in the retail industry of $137.2 million, or 15.1%, of commercial real estate loans. A deterioration within these industries, particularly those that have been adversely impacted by remote work arrangements, could affect the ability of borrowers, guarantors and related parties to perform in accordance with the terms of their loans, which could have material and adverse consequences on our financial condition and results of operations.

If our allowance for credit losses is not sufficient to cover actual credit losses, our earnings and capital could decrease.

We make various assumptions and judgments about the collectability of our loan portfolio, including the creditworthiness of our borrowers, the value of the real estate and other assets serving as collateral for the repayment of many of our loans, and expectations on payments based on forecasted economic conditions. Credit performance over the medium- and long-term is susceptible to economic and market forces, which introduces uncertainty into forecasts. In determining the amount of the allowance for credit losses, we review our loans and our loss and delinquency experience, as well as the experience of other similarly situated institutions, and we evaluate other factors including, among other things, current economic conditions. If our assumptions are incorrect, if delinquencies, non-accrual or non-performing loans increase, or macroeconomic conditions are worse than anticipated, our allowance for credit losses may not be sufficient to cover currently expected losses in our loan portfolio, which would require additions to our allowance. Material additions to our allowance would materially decrease our net income.

In addition, bank regulators periodically review our allowance for credit losses and, based on information available to them at the time of their review, may require us to increase our allowance for credit losses or recognize further loan charge-offs. An increase in our allowance for credit losses on loans or loan charge-offs as a result of these regulatory reviews may have a material adverse effect on our financial condition and results of operations. In addition, any future credit deterioration could require us to increase our allowance for credit losses.

The foreclosure process may adversely impact the Bank’s recoveries on non-performing loans.

The judicial foreclosure process is protracted, especially in New Jersey, where foreclosure timelines remain among the longest in the nation, which delays our ability to resolve non-performing loans through the sale of the underlying collateral. The longer timelines are the result of the additional consumer protection initiatives related to the foreclosure process, increased documentary requirements and judicial scrutiny, and, both voluntary and mandatory programs under which lenders may consider loan modifications or other alternatives to foreclosure. These reasons, historical issues at the largest mortgage loan servicers, and the legal and regulatory responses, have impacted the foreclosure process and completion time of foreclosures for residential mortgage lenders. This may result in a material adverse effect on collateral values and our ability to minimize our losses.

We are subject to environmental liability risk associated with lending activities.

A significant portion of our loan portfolio is secured by real estate, and we could become subject to environmental liabilities with respect to one or more of these properties. During the ordinary course of business, we may foreclose on and take title to properties securing defaulted loans. In doing so, there is a risk that hazardous or toxic substances could be found on these properties. If so, we may be liable for remediation costs, as well as for personal injury and property damage, civil fines and criminal penalties regardless of when the hazardous conditions or toxic substances first affected any particular property. Environmental laws may require us to incur substantial expenses to address unknown liabilities and may materially reduce the affected property’s value or limit our ability to use or sell the affected property. In addition, future laws or regulations, or more stringent interpretations or enforcement policies with respect to existing laws and regulations may increase our exposure to environmental liability, and heightened pressure from investors and other stakeholders may require us to incur additional expenses with respect to environmental matters. Although we have policies and procedures to perform an environmental review before initiating any foreclosure action on nonresidential real property, these reviews may not be sufficient to detect all potential environmental hazards. The remediation costs and any other financial liabilities associated with an environmental hazard could have a material adverse effect on us.

Risks Related to Regulatory Matters

We are subject to extensive regulatory oversight.

We are subject to extensive supervision, regulation, and examination by the OCC and the FRB. As a result, we are limited in the manner in which we conduct our business, undertake new investments and activities, and obtain financing. This regulatory structure is designed primarily for the protection of the Deposit Insurance Fund and our depositors, and not to benefit our stockholders. This regulatory structure also gives the regulatory authorities extensive discretion in connection with their supervisory and enforcement actions and examination policies, including policies with respect to capital and liquidity levels, the timing and amount of dividend payments, the classification of assets, the establishment of adequate loan loss reserves for regulatory purposes and the timing and amounts of assessments and fees.

We are subject to the Community Reinvestment Act and fair lending laws, and failure to comply with these laws could lead to material penalties.

The Community Reinvestment Act, the Equal Credit Opportunity Act, the Fair Housing Act and other fair lending laws and regulations impose nondiscriminatory lending requirements on financial institutions. A successful regulatory challenge to an institution’s performance under the Community Reinvestment Act or fair lending laws and regulations could result in a wide variety of sanctions, including the required payment of damages and civil money penalties, injunctive relief, imposition of restrictions on mergers and acquisitions activity and restrictions on expansion. Private parties may also have the ability to challenge an institution’s performance under fair lending laws in private class action litigation. Such actions could have a material adverse effect on our business, financial condition and results of operations.

The FRB may require us to commit capital resources to support Northfield Bank.

Federal law requires that a holding company act as a source of financial and managerial strength to its subsidiary bank and to commit resources to support such subsidiary bank. Under the “source of strength” doctrine, the FRB may require a holding company to contribute capital into a troubled subsidiary bank and may charge the holding company with engaging in unsafe and unsound practices for failure to commit resources to a subsidiary bank. A capital contribution may be required at times when the holding company may not have the resources to provide it and therefore may be required to borrow the funds or raise capital. Any borrowing or funds needed to raise capital required to make a capital contribution may be difficult and expensive and could have an adverse effect on our business, financial condition and results of operations.

Legislative or regulatory responses to perceived financial and market problems could impair our rights against borrowers.

Federal, state and local laws and policies could reduce the amount distressed borrowers are otherwise contractually obligated to pay under their mortgage loans, and may limit the ability of lenders to foreclose on mortgage collateral. Restrictions on Northfield Bank’s rights as creditor could result in increased credit losses on our loans and mortgage-backed securities, or increased expense in pursuing our remedies as a creditor.

Non-compliance with the USA PATRIOT Act, Bank Secrecy Act, or other laws and regulations could result in fines or sanctions.

The USA PATRIOT and Bank Secrecy Acts require financial institutions to develop programs and procedures to prevent financial institutions from being used for money laundering and terrorist activities. If such activities are detected, financial institutions are obligated to file suspicious activity reports with the U.S. Treasury’s Office of Financial Crimes Enforcement Network. These rules require financial institutions to establish procedures for identifying and verifying the identity of customers seeking to open new financial accounts. Failure to comply with these regulations could result in fines or sanctions and place restrictions on mergers and acquisitions and other expansionary activities. While we have developed policies and procedures designed to assist in compliance with these laws and regulations, these policies and procedures may not be effective in preventing violations of these laws and regulations.

The fiscal and monetary policies and regulations of the government, including the FRB and other agencies, could adversely affect our business, financial condition and results of operations.

In addition to being affected by general economic conditions, our earnings and growth are affected by the policies of the FRB. An important function of the FRB is to regulate the money supply and credit environment. Among the instruments used by the FRB to implement these objectives are open market purchases and sales of U.S. Government securities, adjustments of the discount rate and changes in banks’ reserve requirements against bank deposits. These instruments are used in varying combinations to influence overall economic growth and the distribution of credit, bank loans, investments and deposits. Their use also affects interest rates charged on loans or paid on deposits. The FRB’s policies determine in large part the cost of funds for lending and investing and the return earned on those loans and investments, both of which affect our net interest margin. Its policies can also adversely affect borrowers, potentially increasing the risk that they may fail to repay their loans. The monetary policies and regulations of the FRB have had a significant effect on the overall economy and the operating results of financial institutions in the past and are expected to continue to do so in the future.

Additionally, Congress and the administration through executive orders controls fiscal policy through decisions on taxation and expenditures. Depending on industries and markets involved, changes to tax law and increased or reduced public expenditures could affect us directly or the business operations of our customers.

The monetary policies and regulations of the government, including the FRB, have had a significant effect on the overall economy and the operating results of financial institutions in the past and are expected to continue to do so in the future. Changes in policies and regulations generally are beyond our control, and we are unable to predict what changes may occur or the manner in which any future changes may affect our business, financial condition and results of operations.

We are required to maintain a significant percentage of our total assets in residential mortgage loans and investments secured by residential mortgage loans, which restricts our ability to diversify our loan portfolio.

A federal savings bank differs from a commercial bank in that it is required to maintain at least 65% of its total assets in “qualified thrift investments,” which generally includes loans and investments for the purchase, refinance, construction, improvement, or repair of residential real estate, as well as home equity loans, education loans and small business loans. To maintain our federal savings bank charter, we have to be a “qualified thrift lender” or “QTL” in nine out of each 12 immediately preceding months. The QTL requirement limits the extent to which we can grow our commercial loan portfolio, and failing the QTL test can result in an enforcement action. However, a loan that does not exceed $2 million (including a group of loans to one borrower) that is for commercial, corporate, business, or agricultural purposes is included in our qualified thrift investments. As of December 31, 2025, we maintained 78.0% of our portfolio assets in qualified thrift investments. Because of the QTL requirement, we may be limited in our ability to change our asset mix and increase the yield on our earning assets by growing our commercial loan portfolio.

In addition, if we continue to grow our commercial real estate loan portfolio and our residential mortgage loan portfolio decreases, it is possible that to maintain our QTL status, we may have to buy mortgage-backed securities or other qualifying assets at times when the terms of such investments may not be attractive. Alternatively, we may find it necessary to pursue different structures, including converting Northfield Bank’s savings bank charter to a commercial bank charter or electing to be treated as a covered savings association.

We are subject to stringent capital requirements, which may adversely affect our return on equity, require us to raise additional capital, or constrain us from paying dividends or repurchasing shares.

The minimum capital requirements applicable to Northfield Bancorp and Northfield Bank are: (i) a common equity Tier 1 capital ratio of 4.5%; (ii) a Tier 1 to risk-based assets capital ratio of 6%; (iii) a total capital ratio of 8%; and (iv) a Tier 1 leverage ratio of 4%. Applicable regulations also establish a “capital conservation buffer” of 2.5%, resulting in the following minimum ratios: (i) a common equity Tier 1 capital ratio of 7.0%, (ii) a Tier 1 to risk-based assets capital ratio of 8.5%, and (iii) a total capital ratio of 10.5%. An institution may become subject to limitations on paying dividends, engaging in share repurchases, and paying discretionary bonuses if its capital level falls below the buffer amount. These limitations establish a maximum percentage of eligible retained income that can be utilized for such actions. However, qualifying institutions of under $10 billion in assets may elect to be subject to an alternative “community bank leverage ratio” framework, which is currently 9% Tier 1 capital to average total consolidated assets. Northfield Bank has opted into this framework.

The application of these capital requirements, among other things, could result in lower returns on equity, require the raising of additional capital, and result in regulatory actions if we were to be unable to comply with such requirements. Furthermore, the imposition of additional liquidity requirements could result in our having to lengthen the term of our funding, restructure our business models, and/or increase our holdings of liquid assets. Implementation of changes to asset risk weightings for risk-based capital calculations, items included or deducted in calculating regulatory capital and/or additional capital conservation buffers could result in management modifying its business strategy, and could limit our ability to make distributions, including paying dividends or repurchasing shares. See “Item 1. Business — Supervision and Regulation.”

We may become subject to enforcement actions even though non-compliance was inadvertent or unintentional.

The financial services industry is subject to intense scrutiny from bank supervisors in the examination process and aggressive enforcement of federal and state regulations, particularly with respect to mortgage-related practices and other consumer compliance matters, and compliance with anti-money laundering, Bank Secrecy Act and Office of Foreign Assets Control regulations, and economic sanctions against certain foreign countries and nationals. Enforcement actions may be initiated for violations of laws and regulations and unsafe or unsound practices. We maintain systems and procedures designed to ensure that we comply with applicable laws and regulations; however, some legal/regulatory frameworks provide for the imposition of fines or penalties for non-compliance even though the non-compliance was inadvertent or unintentional and even though there was in place at the time systems and procedures designed to ensure compliance. Failure to comply with these and other regulations, and supervisory expectations related thereto, may result in fines, penalties, lawsuits, regulatory sanctions, reputation damage, or restrictions on our business.

Federal Deposit Insurance Corporation (“FDIC”) deposit insurance could increase in the future.

The FDIC is required to base deposit insurance premiums on an institution's total assets minus its tangible equity instead of its deposits, and the FDIC has adopted regulations that base assessments on a combination of financial ratios and regulatory ratings. The FDIC’s current range of assessments is 2.5 basis points to 42 basis points of total assets less tangible equity. If there are any changes in our financial ratios and regulatory ratings that require adjustments that increase its assessment, or, if circumstances require the FDIC to impose additional special assessments or further increase its quarterly assessment rates, our results of operations could be adversely impacted.

Risks Related to Strategic Matters

Implementing our growth strategies could cause us to incur significant costs and expenses, which may negatively affect our financial condition and results of operations.

We expect to continue to grow our assets, the level of our deposits or borrowings, and the scale of our operations. Achieving our growth targets depends, in part, on our ability to attract customers that currently bank at other financial institutions in our market, thereby increasing our share of the market, implement new lines of business or offer new products and services, identify favorable loan and investment opportunities, and acquire other banks and non-bank entities. Our ability to grow successfully will depend on a variety of factors, including our ability to attract and retain experienced bankers, the continued availability of desirable business opportunities, competitive responses from other financial institutions in our market areas and our ability to manage our growth. Growth opportunities may not be available or we may not be able to manage our growth successfully. If we do not manage our growth effectively, our financial condition and operating results could be negatively affected.

Our inability to tailor our retail delivery model to respond to consumer preferences in banking may negatively affect earnings.

Our branch network continues to be a very significant source of new business generation, however, consumers continue to migrate much of their routine banking to self-service channels. In recognition of this shift in consumer patterns, we regularly review our branch network, which can result in branch consolidation accompanied by the enhancement of our capabilities to serve its customers through alternate delivery channels. The benefits of this strategy would depend on our ability to realize expected expense reductions; however, if we are not able to implement this successfully, we may experience significant customer attrition.

Risks Related to Economic Matters

A decline in economic conditions could reduce demand for our products and services and/or result in increases in our level of non-performing loans, which could have an adverse effect on our results of operations.

Unlike larger financial institutions that are more geographically diversified, our profitability depends primarily on the general economic conditions in New York, New Jersey and, to a lesser extent, eastern Pennsylvania. Local economic conditions have a significant impact on our commercial real estate, construction, and consumer loans, the ability of the borrowers to repay these loans and the value of the collateral securing these loans. A substantial portion of our loans are to borrowers located in or secured by collateral in the New York metropolitan area.

A significant decline in general economic conditions, caused by inflation, tariffs or other domestic or international governmental policies, changes in interest rates, recession, acts of terrorism, an outbreak of hostilities or other international or domestic events, tax reform, unemployment, an epidemic or pandemic or other factors beyond our control, could result in the following consequences, any of which could have a material adverse effect on our business, financial condition, liquidity and results of operations:

•demand for our products and services may decline;

•loan delinquencies, problem assets, and foreclosures may increase;

•low cost or non-interest-bearing deposits may decrease;

•inflation may accelerate, which may increase our operating costs and also may increase real estate costs and lower customer buying power, thereby reducing loan demand;

•collateral for loans, especially real estate, may decline in value, (including due to the inability to complete construction projects due to disruption in the supply chain) in turn reducing customers’ future borrowing power, and reducing the value of assets and collateral associated with existing loans;

•our allowance for credit losses may increase;

•the value of our securities portfolio may decline; or

•the net worth and liquidity of loan guarantors may decline, impairing their ability to honor commitments to us.

Instability and uncertainty in the commercial and residential real estate markets, as well as in the broader commercial and retail credit markets, could have a material adverse effect on our financial condition and operating results. In addition, deflationary pressures, while possibly lowering our operating costs, could have a significant negative effect on our borrowers, especially our business borrowers, and the values of underlying collateral securing loans, which could negatively affect our financial performance.

The significant and rapidly evolving changes to the size, structure, powers and operations of the federal government, changes to U.S. economic policies, and uncertainties regarding the potential for these changes may cause economic disruptions that could, in turn, adversely impact our business, results of operations and financial condition.

The current U.S. administration has implemented significant changes in federal priorities and has taken steps to change the operations, structure, and policy focus of various federal agencies, as well as regulatory priorities, policy approaches and interpretations of existing laws by those federal agencies. For example, recent executive actions and proposed legislation has changed agency mandates, modified or reduced federal program funding, altered regulatory frameworks, or adjusted the size and composition of the federal workforce. Moreover, leadership transitions at key federal agencies have impacted or may impact rulemaking, supervision, enforcement, and examination priorities across the financial regulatory landscape. These developments in the federal government may have varying effects on the banking and financial services industry that are difficult to predict, which makes it difficult for us to anticipate and mitigate attendant risks. Compliance with changing federal and regulatory priorities could, among other things, increase the costs of operating our business, reduce the demand for our products and services, impact our ability to achieve our business goals, and increase our legal, operational and reputational risks, any or all of which could materially adversely affect our results of operations.

The current U.S. administration also has implemented rapid shifts in macroeconomic policies, such as those relating to trade restrictions and tariffs, which have created significant uncertainties regarding U.S. economic growth, the potential for recession, and concerns over an increase in inflation. Slow economic growth, economic contraction or recession, or shifts in broader consumer and business trends would significantly impact our ability to originate loans, the ability of borrowers to repay loans, and the value of the collateral securing loans.

Other political and economic events within the United States, including a divided domestic political environment, changes in or disagreements over U.S. monetary policy and actions of the Federal Reserve System, disagreements over long-term federal budget and deficit reduction plans, disagreements over, or threats not to increase, the U.S. government’s borrowing limit (or “debt ceiling”), and risk of downgrade of the ratings of U.S. government debt obligations, also may negatively impact financial markets and the U.S. economy.

Regional business and economic conditions are a major driver of our results of operations. Difficult conditions in the regional business and economic environment, including those caused by the lack of stability and predictability of U.S. policymaking, may materially adversely affect our operating expenses, the quality of our assets, credit losses, and the demand for our products and services.

Inflation can have an adverse impact on our business and on our customers.

Inflation risk is the risk that the value of assets or income from investments will be worth less in the future as inflation decreases the value of money. As inflation increases, potentially causing market interest rates to rise, the value of our investment securities, particularly those with longer maturities, decrease although this effect can be less pronounced for floating rate instruments. In addition, inflation generally increases the cost of goods and services we use in our business operations, such as electricity and other utilities, which increases our non-interest expenses. Furthermore, our customers are also affected by inflation and the rising costs of goods and services used in their households and businesses, which could have a negative impact on their ability to repay their loans with us. Sustained higher interest rates by the FRB to tame persistent inflationary price pressures could also push down asset prices and weaken economic activity. Interest rates are highly sensitive to many factors that are beyond our control, including global, domestic and local economic conditions and the policies of various governmental and regulatory agencies and, specifically, the FRB. A deterioration in economic conditions in the United States and our markets could result in an increase in loan delinquencies and non-performing assets, decreases in loan collateral values and a decrease in demand for our products and services, all of which, in turn, would adversely affect our business, financial condition and results of operations.

Interruption of our customer's supply chains and federal funding could negatively impact their business and operations and impact their ability to repay their loans.

Any material interruption in our customers' supply chains, such as a material interruption of the resources required to conduct their business, such as those resulting from interruptions in service by third-party providers, trade restrictions, such as increased tariffs or quotas, embargoes or customs restrictions, reductions in federal subsidies or grants, social or labor unrest, natural disasters, epidemics or pandemics or political disputes and military conflicts, that cause a material disruption in our customers' supply chains, could have a negative impact on their business and ability to repay their borrowings with us. In the event of disruptions in our customers' supply chains, the labor and materials they rely on in the ordinary course of business may not be available at reasonable rates or at all. Additionally, changes in distribution of federal funds or freezing of federal funds, including the reduction in federal workforce causing unemployment, could have an adverse effect on the ability of consumers and businesses to pay debts and/or affect the demand for loans and deposits.

The failure to address the federal debt ceiling in a timely manner, downgrades of the U.S. credit rating and uncertain credit and financial market conditions may affect the stability of securities issued or guaranteed by the federal government, which may affect the valuation or liquidity of our investment securities portfolio and increase future borrowing costs.

As a result of any uncertain political, credit and financial market conditions, including the potential consequences of the federal government defaulting on its obligations for a period of time due to federal debt ceiling limitations or other unresolved political issues, investments in financial instruments issued or guaranteed by the federal government pose credit default and liquidity risks. Given that future deterioration in the U.S. credit and financial markets is a possibility, losses or significant deterioration in the fair value of our U.S. government issued or guaranteed investments may occur. At December 31, 2025, we had approximately $558,000, $32.2 million and $1.38 billion invested in U.S. Government agency securities, corporate bonds and residential mortgage-backed securities issued or guaranteed by government-sponsored enterprises, respectively. Downgrades to the U.S. credit rating could affect the stability of securities issued or guaranteed by the federal government and the valuation or liquidity of our portfolio of such investment securities, and could result in our counterparties requiring additional collateral for our borrowings. Further, unless and until U.S. political, credit and financial market conditions have been sufficiently resolved or stabilized, it may increase our future borrowing costs.

Risks Related to Competitive Matters

Competition within our market areas may limit our growth and profitability.

We face intense competition in making loans and attracting deposits. Price competition from other financial institutions, credit unions, money market and mutual funds, insurance companies, and other non-traditional competitors such as financial technology companies, for loans and deposits sometimes results in us charging lower interest rates on our loans and paying higher interest rates on our deposits, which may reduce our net interest income. Competition also makes it more difficult and costly to attract and retain qualified employees. Many of the institutions with which we compete have substantially greater resources and lending limits than we have and may offer services that we do not provide. For example, the Guiding and Establishing National Innovation for U.S. Stablecoins Act of 2025 (GENIUS Act) provides a legal framework for stablecoins to be issued in the United States, which may allow new and existing competitors to compete for funds that may have otherwise been deposited with banks, such as Northfield Bank. Our competitors also may price and structure loan and deposit products aggressively when they enter into new lines of business or new market areas. We expect competition to increase in the future as a result of legislative, regulatory, and technological changes and the continuing trend of consolidation in the financial services industry. If we are not able to compete effectively in our market area, our profitability may be negatively affected. The greater resources and broader offering of deposit and loan products of some of our competitors may also limit our ability to increase our interest-earning assets.

The grant of bank charters and special purpose fintech charters by the Office of the Comptroller of the Currency to fintech companies could present financial risk and market risk to us generally and the payments processing business specifically.

In 2018, the Office of the Comptroller of the Currency announced that it would begin to accept and evaluate charters for entities that wanted to conduct certain components of a banking business pursuant to a federal charter, known as a special purpose national bank charter. Intended to promote economic opportunity and spur financial innovation, an institution with a special purpose national bank charter may engage in paying checks, lending money and taking deposits. The Office of the Comptroller of the Currency has granted national bank charters to companies that were previously non-bank fintech companies. If, in the future, the Office of the Comptroller of the Currency determines to grant any special purpose national bank charter applications or continues to grant bank charters to fintech applicants, recipients of such charters may enter the U.S. payments market and other business activities that we conduct, which could increase the competition we face and have a material adverse effect on us. This could result in lower fee income, and loss of deposits, related to our payments processing business.

Risks Related to Interest Rates

Changes in market interest rates in an increasing rate environment could adversely affect our financial condition and results of operations.

Our financial condition and results of operations are significantly affected by changes in market interest rates. Our results of operations substantially depend on our net interest income, which is the difference between the interest income we earn on our interest-earning assets and the interest expense we pay on our interest-bearing liabilities. Our interest-bearing liabilities generally reprice or mature more quickly than our interest-earning assets. As rates increase, the rates we pay on our deposits and borrowed funds can increase more quickly than interest rates earned on our loans and investments, resulting in a negative effect on interest spreads and net interest income which has negatively affected our profitability. In addition, as a result of rising interest rates, customers may shift deposits from lower-cost transaction and savings accounts to higher-cost certificates of deposit. However, the rates we earn on our loans may not increase as rapidly. Conversely, when interest rates fall, our net interest margin could be affected negatively if competitive pressures keep us from reducing rates on our deposits, while the yields on our assets may decrease more rapidly through loan prepayments and interest rate adjustments.

Our balance sheet composition is weighted towards assets with longer durations, which expose us to risks upon changes in interest rates.

We are subject to reinvestment risk associated with changes in interest rates. Changes in interest rates may affect the average life of loans and mortgage-related securities. Decreases in interest rates often result in increased prepayments of loans and mortgage-related securities as borrowers refinance their loans to reduce borrowings costs. Under these circumstances, we are subject to reinvestment risk to the extent we are unable to reinvest the cash received from such prepayments in loans or other investments that have interest rates that are comparable to the interest rates on existing loans and securities. Increases in interest rates generally reduce prepayments.

Changes in interest rates also affect the value of our interest earning assets and in particular the carrying value of our securities portfolio. Generally, the value of interest-earning assets fluctuates inversely with changes in interest rates. To the extent interest rates increase and the value of our available-for-sale portfolio decreases, our stockholders’ equity will be adversely affected.

At December 31, 2025, our simulation model indicated that our net portfolio value (the net present value of our interest-earning assets and interest-bearing liabilities) would increase by 0.98% if there was an instantaneous parallel 200 basis point decrease in market interest rates and would decrease by 7.32% if there was an instantaneous parallel 200 basis point increase in market interest rates. Although interest rate risk calculations provide an indication of our interest rate risk exposure at a particular point in time, such measurements are not intended to and do not provide a precise forecast of the effect of changes in market interest rates on our net portfolio value or net interest income and likely will differ from actual results.

Risks Related to Operational Matters

Our funding sources may prove insufficient to replace deposits at maturity and support our future growth. A lack of liquidity could adversely affect our financial condition and results of operations and result in regulatory limits being placed on us.

We maintain sufficient funds to respond to the needs of depositors and borrowers. Deposits have traditionally been our primary source of funds for use in lending and investment activities. We also receive funds from loan repayments, investment security maturities and income on other interest-earning assets. While we emphasize the generation of low-cost stable core deposits as a source of funding, there is strong competition for such deposits in our market area. Additionally, deposit balances can decrease if customers identify alternative investments opportunities. Accordingly, as a part of our liquidity management, we may use a number of funding sources in addition to deposits and repayments and maturities of loans and investments. As we continue to grow, we are likely to become more dependent on these sources, which may include FHLB advances, federal funds purchased and brokered deposits. Adverse operating results or changes in industry conditions could lead to difficulty or an inability to access these additional funding sources.

Our financial flexibility will be severely constrained if we are unable to maintain our access to funding or if adequate financing is not available to accommodate future growth at acceptable interest rates. Further, if we are required to rely more heavily on more expensive funding sources to support liquidity and future growth, our revenues may not increase proportionately to cover our increased costs. In this case, our operating margins and profitability would be adversely affected. Alternatively, we may need to sell a portion of our investment and/or loan portfolio to raise funds, which, depending upon market conditions, could result in us realizing a loss on the sale of such assets. As of December 31, 2025, we had a net unrealized loss of $14.8 million on our debt securities available-for-sale portfolio as a result of the previously rising interest rate environment. Our investment securities totaled $1.44 billion, or 25.0%, of total assets, at December 31, 2025.

Our access to funding sources, including the FHLB and brokered deposits, in amounts adequate to finance our activities could be impaired by factors that affect us specifically or the financial services industry in general. Unexpected changes to the FHLB’s underwriting guidelines for wholesale borrowings or lending policies may limit or restrict our ability to borrow, and therefore could have a significant adverse impact on our liquidity.

Any decline in available funding could adversely impact our ability to originate loans, invest in securities, pay our expenses, or fulfill obligations such as repaying our borrowings or meeting deposit withdrawal demands, any of which could have a material adverse impact on our liquidity, business, financial condition and results of operations.

A lack of liquidity could also attract increased regulatory scrutiny and potential restraints imposed on us by regulators. Depending on the capitalization status and regulatory treatment of depository institutions, including whether an institution is subject to a supervisory prompt corrective action directive, certain additional regulatory restrictions and prohibitions may apply, including restrictions on growth, restrictions on interest rates paid on deposits, restrictions or prohibitions on payment of dividends and restrictions on the acceptance of brokered deposits.

Our success depends on hiring and retaining certain key personnel.

Our performance largely depends on the talents and efforts of highly skilled individuals. We rely on key personnel to manage and operate our business, including major revenue generating functions such as loan and deposit generation. The loss of key staff may adversely affect our ability to maintain and manage these functions effectively, which could negatively affect our revenues. In addition, competition for senior executives and skilled personnel in the financial services and banking industry is significant, which means the loss of key personnel could result in increased recruiting and hiring expenses, which could cause a decrease in our net income. Our continued ability to compete effectively depends on our ability to attract new employees and to retain and motivate our existing employees.

Risks associated with system failures, interruptions, or breaches of security could affect our earnings negatively.

Information technology systems are critical to our business. We use various technology systems to manage our customer relationships, general ledger, securities, deposits, and loans. We have established policies and procedures to prevent or limit the effect of system failures, interruptions, and security breaches, but such events may still occur or may not be adequately addressed if they do occur. In addition, any compromise of our systems could deter customers from using our products and services. Although we rely on security systems to provide the security and authentication necessary to affect the secure transmission of data, these precautions may not protect our systems from compromises or breaches of security.

In addition, we outsource a majority of our data processing to certain third-party providers. If these third-party providers encounter difficulties, or if we have difficulty communicating with them, our ability to adequately process and account for transactions could be affected, and our business operations could be adversely affected. Threats to information security also exist in the processing of customer information through various other vendors and their personnel.

The occurrence of any system failures, interruption, or breach of security could damage our reputation, disrupt operations, misappropriate confidential information, damage our computer systems and result in a loss of customers and business thereby subjecting us to additional regulatory scrutiny, or could expose us to litigation and possible financial liability. Any of these events could have a material adverse effect on our financial condition and results of operations.

Cyber-attacks or other security breaches could adversely affect our operations, net income, or reputation.

We regularly collect, process, transmit and store significant amounts of confidential information regarding our customers, employees and others and concerning our business, operations, plans and strategies. In some cases, this confidential or proprietary information is collected, compiled, processed, transmitted, or stored by third parties on our behalf. Our heavy reliance on information technology systems (both internal and external) exposes us to operational risks which include the risk of malfeasance by employees or persons outside of our organization, errors relating to transaction processing and technology, systems failures or interruptions, failures to properly implement systems upgrades, breaches of our internal control systems and compliance requirements, and business continuation and disaster recovery.

Information security risks have generally increased in recent years because of the proliferation of new technologies, the use of the Internet and telecommunications technologies to conduct financial and other transactions, the increased sophistication and activities of perpetrators of cyber-attacks and mobile phishing and an increase in our remote workforce. Mobile phishing, a means for identity thieves to obtain sensitive personal information through fraudulent e-mail, text or voice mail, is a continuing threat targeting the customers of financial entities. A failure in or breach of our operational or information security systems, or those of our third-party service providers, as a result of cyber-attacks or information security breaches or due to employee error, malfeasance or other disruptions could adversely affect our business, result in the disclosure or misuse of confidential or proprietary information, damage our reputation, increase our costs and/or cause losses.

If this confidential or proprietary information were to be mishandled, misused, or lost, we could be exposed to significant regulatory consequences, reputational damage, civil litigation, and financial loss.

Although we employ a variety of physical, procedural, and technological safeguards to protect this confidential and proprietary information from mishandling, misuse, or loss, these safeguards do not provide absolute assurance that mishandling, misuse, or loss of the information will not occur, and that if mishandling, misuse, or loss of information does occur, those events will be promptly detected and addressed. Similarly, when confidential or proprietary information is collected, compiled, processed, transmitted or stored by third parties on our behalf, our policies and procedures require that the third party agree to maintain the confidentiality of the information, establish and maintain policies and procedures designed to preserve the confidentiality of the information, and permit us to confirm the third party’s compliance with the terms of the agreement. As information security risks and cyber threats continue to evolve, we may be required to expend additional resources to continue to enhance our information security measures and/or to investigate and remediate any information security vulnerabilities.

Because the nature of the financial services business involves a high volume of transactions, we face significant operational risks, including fraud and other financial crimes.

We operate in diverse markets and rely on the ability of our employees and systems to process a high number of transactions over short periods of time. Operational risk is the risk of loss resulting from our operations, including but not limited to, the risk of fraud by employees or persons outside our company, the execution of unauthorized transactions by employees, errors relating to transaction processing and technology, breaches of the internal control system and compliance requirements, and business continuation and disaster recovery. Our loans to businesses and individuals and our deposit relationships and related transactions are subject to exposure to the risk of loss due to fraud and other financial crimes. Fraudulent activity may take many forms, including loan fraud, check fraud (counterfeit, forgery, etc.), electronic fraud, wire fraud, phishing, social engineering and other dishonest acts. In addition, employee errors and employee and customer misconduct could subject us to financial losses or regulatory sanctions and seriously harm our reputation. Insurance coverage may not be available for such losses, or where available, such losses may exceed insurance limits. This risk of loss also includes the potential legal actions that could arise as a result of an operational deficiency or as a result of noncompliance with applicable regulatory standards, adverse business decisions or their implementation, and customer attrition due to potential negative publicity. In the event of a breakdown in the internal control system, improper operation of systems or improper employee actions, we could suffer financial loss, face regulatory action, and suffer damage to our reputation.

We face funds transfer and payments-related risks.

As a financial institution, we bear funds transfer risks of different types, which result from large transaction volumes and large dollar amounts of incoming and outgoing money transfers. Loss exposure may result if money is transferred before it is received, or legal rights to reclaim monies transferred are asserted, including payments made to merchants for payment clearing, while customers have statutory periods to reverse their payments. Exposure also results from payments made prior to receipt of offsetting funds, as accommodations to customers. We are subject to settlement risks as our transfers may be larger than typical financial institutions of our size. Transfers could also be made in error or as a result of fraud. Additionally, as with other financial institutions, we may incur legal liability or reputational risk, if we unknowingly process payments for companies in violation of money laundering laws or other regulations or immoral activities.

The potential for fraud in the card payment industry is significant and could adversely affect our business and results of operations.

Issuers of debit cards and other companies have suffered significant losses in recent years with respect to the theft of cardholder data that has been illegally exploited for personal gain. The theft of such information is regularly reported and affects individuals and businesses. Losses from various types of fraud have been substantial for certain card industry participants. We also rely upon third parties for transaction processing services, which subjects us and our customers to risks related to the vulnerabilities of those third parties. We, in many cases, have indemnification agreements with third parties; however, these agreements may not fully cover losses. Fraudulent activity could also result in the imposition of regulatory sanctions, including significant monetary fines, which could adversely affect our business, results of operations and financial condition. Although fraud has not had a material impact on our profitability, it is possible that such activity could adversely impact profitability in the future.

Fraud by merchants or others could have a material adverse effect on our business and financial condition.

We may be liable for fraudulent transactions initiated by merchants or others. Examples of fraud include when a merchant or other party knowingly uses a stolen or counterfeit card to make a transaction, or if a merchant intentionally fails to deliver the merchandise or services sold in an otherwise valid transaction. Criminals are using increasingly sophisticated methods to engage in illegal activities such as counterfeiting and fraud. It is possible that incidents of fraud could increase in the future. Failure to effectively manage risk and prevent fraud would increase our chargeback liability or other liability. Increases in chargebacks or other liability could have a material adverse effect on our business, financial condition, and results of operations.

If our enterprise risk management framework is not effective at mitigating risk and loss to us, we could suffer unexpected losses and our results of operations could be materially adversely affected.

Our enterprise risk management framework seeks to achieve an appropriate balance between risk and return, which is critical to optimizing stockholder value. We have established processes and procedures intended to identify, measure, monitor, report and analyze the types of risk to which we are subject, including credit, liquidity, operational, market, strategic, regulatory compliance and reputational. However, as with any risk management framework, there are inherent limitations to our risk management strategies as there may exist, or develop in the future, risks that we have not appropriately anticipated or identified. If our risk management framework proves ineffective, we could suffer unexpected losses and our business and results of operations could be materially adversely affected.

Our Board of Directors needs to leverage, to a large degree, management and an outside consultant, in overseeing cybersecurity risk management.

The Board of Directors established a Compliance and Information Technology (“CIT”) Committee with specific responsibilities for overseeing cybersecurity threats, among other things. Our Chief Information Security Officer provides the CIT Committee with periodic reports on our cybersecurity risks and any material cybersecurity incidents. The CIT Committee retains an independent external cybersecurity consultant who regularly attends CIT Committee meetings and reports directly to the CIT Committee Chair. In addition, Northfield Bank maintains an Information and Cybersecurity Program under the leadership of the Chief Risk Officer, the Chief Information Officer, and the Chief Information Security Officer, with Board of Directors oversight for identifying and mitigating information security risks. For this oversight of cybersecurity, our Board of Directors, through the CIT Committee, work with the Chief Risk Officer, the Chief Information Officer, and the Chief Information Security Officer, as well as the independent external cybersecurity consultant.

Integration of artificial intelligence (AI) and machine learning (ML) technologies expose us to various risks, including operational, data, regulatory, and reputational risks, which could materially affect our business and financial results.

•Operational and Model Risk: Our AI/ML models, used for fraud detection and customer service rely on complex algorithms and vast datasets. Errors, biases, or "hallucinations" (generating false information) in these models, or unexpected system failures, could lead to flawed decisions, financial losses, compliance failures, or degraded customer experiences, impacting profitability and client retention.

•Data Security and Privacy: AI systems process sensitive customer data. Security breaches or unauthorized access to these systems could result in data theft, loss of intellectual property, and significant penalties, damaging customer trust.

•Regulatory & Compliance Risk: The regulatory landscape for AI is rapidly evolving. New laws and guidance could impose costly compliance burdens, restrict AI use, or introduce liabilities, particularly concerning algorithmic bias and fair lending practices (e.g., “digital redlining”), potentially increasing operational costs and limiting service offerings.

•Third Party Risk: We depend on third-parties who use AI, creating dependency risks and potential issues with data handling, model reliability, and licensing, all of which could disrupt operations.

•Reputational and Ethical Risk: Misuse of AI, biased outcomes, or privacy violations can harm our brand, erode customer confidence, and attract negative public attention, potentially affecting demand for our services.

If we cannot effectively manage these challenges, including adapting to rapid technological change and ensuring responsible AI governance, our reputation, competitive position, and financial performance could be significantly harmed.

The soundness of other financial institutions could adversely affect us

Our ability to engage in routine funding transactions could be adversely affected by the actions and commercial soundness of other financial institutions. Financial services institutions are interrelated as a result of trading, clearing, counterparty and other relationships. We have exposure to many different counterparties, and we routinely execute transactions with counterparties in the financial industry, including brokers and dealers, other commercial banks, investment banks, mutual and hedge funds, and other financial institutions. As a result, defaults by, or even rumors or questions about, one or more financial services institutions, or the financial services industry generally could lead to market-wide liquidity problems and losses or defaults by us or by other institutions and organizations. Furthermore, as we and other community banking organizations experienced in 2023, the failure of other financial institutions may cause deposit outflows as clients spread deposits among several different banks so as to maximize their amount of FDIC insurance, move deposits to banks deemed “too big to fail” or remove deposits from the banking system entirely. Many of these transactions expose us to credit risk in the event of default of our counterparty or client. In addition, our credit risk may be exacerbated when the collateral held by us cannot be liquidated or is liquidated at prices not sufficient to recover the full amount of the financial instrument exposure due to us. Any such losses could materially and adversely affect our results of operations.

Risks Related to Environmental Matters

Our business, financial condition, and results of operations could be adversely affected by natural disasters, health epidemics, and other catastrophic events.

We could be adversely affected if key personnel or a significant number of employees were to become unavailable due to a pandemic, natural disaster, war, act of terrorism, accident, or other reason. Any of these events could result in the temporary reduction of operations, employees, and customers, which could limit our ability to provide services. Additionally, many of our borrowers may suffer property damage, experience interruption of their businesses or lose their jobs after such events. Those borrowers might not be able to repay their loans, and the collateral for such loans may decline significantly in value.

Other Risks Related to Our Business

Changes in our accounting policies or in accounting standards could materially affect how we report our financial condition and results of operations.

Our accounting policies are essential to understanding our financial results and condition. Some of these policies require the use of estimates and assumptions that may affect the value of our assets or liabilities and financial results. Some of our accounting policies are critical because they require management to make difficult, subjective, and complex judgments about matters that are uncertain and because it is likely that materially different amounts would be reported under different conditions or using different assumptions. If such estimates or assumptions underlying our financial statements are incorrect, we may experience material losses.

From time to time, the FASB and the SEC change the financial accounting and reporting standards or the interpretation of those standards that govern the preparation of our financial statements. These changes are beyond our control, can be hard to predict and could materially affect how we report our results of operations and financial condition. We could also be required to apply a new or revised standard retroactively, resulting in our restating prior period financial statements in material amounts.

If our municipal banking deposits were lost within a short period of time, this could negatively impact our liquidity and earnings.

As of December 31, 2025, municipal deposits, which are secured by the Bank's investment securities or letters of credit issued by the FHLBNY, totaled $988.3 million, or 24.6% of total deposits. Municipal deposits may be more volatile than other deposits and generally are larger than our retail or business deposits. If a significant amount of these deposits were withdrawn within a short period of time, it could have a negative impact on our short-term liquidity or if the cost to replace such funds was more expensive, it could have an adverse impact on our earnings.

Changes in the valuation of our securities portfolio could reduce net income and lower our capital levels.

Our securities portfolio may be affected by fluctuations in market value, potentially reducing accumulated other comprehensive income and/or earnings. Fluctuations in market value may be caused by changes in market interest rates, lower market prices for securities and limited investor demand. Management evaluates securities for impairment on a quarterly basis, with more frequent evaluation for selected issues. In analyzing a debt issuer’s financial condition, management considers whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, industry analysts’ reports and, to a lesser extent given the relatively insignificant levels of depreciation in our debt portfolio, spread differentials between the effective rates on instruments in the portfolio compared to risk-free rates. In analyzing an equity issuer’s financial condition, management considers industry analysts’ reports, financial performance, and projected target prices of investment analysts within a one-year time period. If this evaluation shows impairment to the actual or projected cash flows associated with one or more securities, a potential loss to earnings may occur. Changes in interest rates also can have an adverse effect on our financial condition, as our available-for-sale securities are reported at their estimated fair value, and therefore are impacted by fluctuations in interest rates. We increase or decrease our stockholders’ equity by the amount of change in the estimated fair value of the available-for-sale securities, net of taxes. The declines in market value could result in other-than-temporary impairments of these assets, which would lead to accounting charges that could have a material adverse effect on our net income and capital levels.

Federal banking regulations restrict insured depository institutions and their affiliated companies from engaging in short-term proprietary trading of certain securities, investing in funds with collateral comprised of less than 100% of loans that are not registered with the SEC and from engaging in hedging activities that do not hedge a specific identified risk. We continue to analyze the impact of this regulation on our investment portfolio, and whether any changes are required to our investment strategies that could negatively affect our earnings.

We may be adversely affected by changes in tax laws.

Changes in federal tax laws may have an adverse effect on the market for, and the valuation of, residential properties, and on the demand for such loans in the future and could make it harder for borrowers to make their loan payments. In addition, these changes also have a disproportionate effect on taxpayers in states with high residential home prices and high state and local taxes, like New Jersey and New York. If home ownership becomes less attractive, demand for mortgage loans could decrease. The value of the properties securing loans in our loan portfolio may be adversely impacted as a result of the changing economics of home ownership, which could require an increase in our provision for credit losses, which would reduce our profitability and could materially adversely affect our business, financial condition and results of operations.

Various factors may make takeover attempts more difficult to achieve.

Our certificate of incorporation and bylaws, federal regulations, Delaware law, shares of restricted stock and stock options that we have granted or may grant to employees and directors, stock ownership by our management and directors and employment agreements that we have entered into with our executive officers, and various other factors may make it more difficult for companies or persons to acquire control of Northfield Bancorp without the consent of our Board of Directors, which could adversely affect the market price of our common stock.

ITEM 1B. UNRESOLVED STAFF COMMENTS

There are no unresolved staff comments.

ITEM 1C. CYBERSECURITY

Cybersecurity Risk Management and Strategy

Our cybersecurity risk management program is aligned with the Company’s business strategy and is integrated into the Company's Enterprise Risk Management ("ERM") framework. The program is designed to identify, assess, manage, and monitor risks to the confidentiality, integrity, and availability of the Company's identified critical systems and information. The program leverages common methodologies, reporting channels and governance processes used across other enterprise risk areas, including third-party relationships, legal, compliance, strategic, operational, and financial risks.

Key elements of the Company's enterprise cybersecurity risk management program include:

•implementation of policies and procedures addressing areas including, but not limited to, Information Security, Business Continuity, Disaster Recovery, Privacy, Third-Party Relationship Risk Management, Enterprise-Risk

Management, and Incident Response, which are periodically reviewed and updated in response to evolving threats and regulatory requirements;

•cybersecurity risk assessments designed to help identify material cybersecurity risks to our identified critical systems, data, products, services, and our broader information technology environment, with identified risks prioritized based on potential impact and likelihood and escalated through established ERM governance processes;

•an independent second-line risk management function, the Information Security Department, which is primarily responsible for managing our cybersecurity risk assessment processes, coordinating execution of the incident response plan, and monitoring the performance and operations of security controls;

•the use of external service providers, where appropriate, to assess, test and enhance our security controls, including penetration testing, employee training, and table top exercises;

•Company-wide employee training and awareness program that includes periodic security assessments to test knowledge and reinforce adherence to security processes and controls, including simulated phishing exercises;

•membership in the Financial Services Information Sharing and Analysis Center (FS-ISAC) and annual participation in the Cyber Attacks against Payment Systems (CAPS) exercises;

•periodic reporting of cybersecurity metrics and threat intelligence to both the Management Risk and CIT Committees;

•a cybersecurity incident response plan that includes procedures for the detection, containment, remediation, recovery, and post-incident review of cybersecurity incidents, coordinated with legal, compliance, and applicable regulatory requirements; and

•a third-party relationships risk management process that evaluates, monitors, reports on, and mitigates cybersecurity risks associated with service providers, suppliers, and vendors throughout the vendor lifecycle, including onboarding, ongoing monitoring, and termination.

The Board of Directors, through its CIT Committee, provides oversight of the Company’s cybersecurity risk management program, including review of material cybersecurity risks, incidents, and management’s mitigation activities.

Cybersecurity risks and incidents are evaluated through the Company’s disclosure controls and procedures to determine whether public disclosure is required.

Based on management's current assessment, risks from cybersecurity threats, including any previous cybersecurity events, have not materially affected and are not reasonably likely to materially affect the Company's business strategy, results of operations, or financial condition. Any expenses incurred from cybersecurity incidents to date have been immaterial. While the Company has not experienced material cybersecurity incidents to date, the cybersecurity threat landscape continues to evolve, and risks may increase due to factors such as heightened fraud activity, increased reliance on third-party technology providers, and broader systemic or geopolitical events.

For a discussion of whether and how any risks from cybersecurity threats, including as a result of any previous cybersecurity incidents, have materially affected or are reasonably likely to materially affect the Company, including its business strategy, results of operations, or financial condition, refer to Item 1A. Risk Factors – “Risks Related to Operational Matters.”

Cybersecurity Governance

The Board of Directors has established the CIT Committee with specific responsibilities for overseeing the Company's cybersecurity risk management program, among other things. The Chief Information Security Officer (“CISO”) provides the CIT Committee with periodic reports regarding cybersecurity risks, threats activity, and any cybersecurity incidents determined to be material.

The CIT Committee also retains an independent external cybersecurity consultant who, at the Committee's request, periodically attends the CIT Committee meetings and provides independent perspectives directly to the Committee Chair. The external cyber-security consultant also provides periodic cybersecurity education and training to the CIT Committee and the full Board of Directors.

The Company maintains an Information and Cybersecurity Program led by our Chief Risk Officer (“CRO”), Chief Information Officer (“CIO”), and CISO. The program is designed to identify and mitigate information security risks and to provide, timely Board oversight. The CRO briefs the Board of Directors on cybersecurity and information security matters during regular Board meetings to ensure alignment with the Company's risk profile and ERM framework.

The Information Security Department is primarily responsible for identifying, assessing, and managing material cybersecurity risks and overseeing cybersecurity risks associated with third-party relationships. The department is led by the CISO, who has cybersecurity experience, training, and professional certifications. The CISO and our CIO, along with members of their teams, regularly engage with peer institutions, industry groups, and public- and private-sector partners to discuss cybersecurity trends, emerging threats, and industry practices. The cybersecurity risk management program is periodically reviewed and updated in response to evolving threats and conditions.

The internal audit function, led by our Chief Internal Auditor, provides independent assurance over cybersecurity-related processes, controls, and risk management practices to assess whether they are appropriately designed and operating effectively.

The Information Security Department monitors the prevention, detection, mitigation, and remediation of cybersecurity risks and incidents through various means, including briefings with internal security personnel, threat intelligence obtained from governmental, public or private sources, information provided by external consultants, and alerts and reports generated by security tools deployed within the Company's information technology environment.

Management has authority to escalate significant cybersecurity risks or incidents to the CIT Committee or the full Board of Directors between scheduled meetings, as appropriate.

ITEM 2. PROPERTIES

The Company operates from its corporate offices located at 581 Main Street, Woodbridge, New Jersey, its home office located at a branch in Staten Island, New York, and its additional 36 branch offices located in New York and New Jersey. The branch offices are located in the New York counties of Richmond (“Staten Island”) and Kings (“Brooklyn”) and the New Jersey counties of Hunterdon, Mercer, Middlesex, and Union. The net book value of our premises, land, and equipment was $19.9 million at December 31, 2025.

ITEM 3. LEGAL PROCEEDINGS

In the normal course of business, we may be party to various outstanding legal proceedings and claims. In the opinion of management, our consolidated financial statements are not likely to be materially affected by the outcome of such legal proceedings and claims as of December 31, 2025.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS, AND ISSUER PURCHASES OF EQUITY SECURITIES

Our shares of common stock are traded on the NASDAQ Global Select Market under the symbol “NFBK.” The approximate number of holders of record of Northfield Bancorp’s common stock as of February 27, 2026, was 3,361. Certain shares of Northfield Bancorp are held in “nominee” or “street” name and accordingly, the number of beneficial owners of such shares is not known or included in the foregoing number.

Stock Performance Graph

Set forth below is a stock performance graph comparing (a) the cumulative total return on the Northfield Bancorp’s common stock for the period December 31, 2020, through December 31, 2025, (b) the cumulative total return of the stocks included in the NASDAQ Composite Index over such period, (c) the cumulative total return on stocks included in the S&P U.S. SmallCap Banks Index over such period and, (d) the cumulative total return on stocks included in the KBW NASDAQ Bank Index over such period. Cumulative return assumes the reinvestment of dividends, and is expressed in dollars based on an assumed investment of $100.


	As of
Index	12/31/2020	12/31/2021	12/31/2022	12/31/2023	12/31/2024	12/31/2025
Northfield Bancorp, Inc.	100.00	135.17	136.34	114.29	110.82	114.32
NASDAQ Composite Index	100.00	122.18	82.43	119.22	154.48	187.14
S&P U.S. SmallCap Bank Index	100.00	139.21	122.74	123.35	145.82	160.37
KBW NASDAQ Bank Index	100.00	138.33	108.73	107.76	147.85	196.00

Source: S&P Global Market Intelligence, a division of S&P Global Inc.

Issuer Purchases of Equity Securities

On November 7, 2023, the Board of Directors of the Company approved a $7.5 million stock repurchase program which was completed in January 2024. On April 24, 2024, the Board of Directors of the Company approved a $5.0 million stock repurchase program which was completed in May 2024. On June 14, 2024, the Board of Directors of the Company approved a $10.0 million stock repurchase program which was completed in August 2024. On February 26, 2025, the Board of Directors of the Company approved a $5.0 million stock repurchase program which was completed in March 2025. On April 23, 2025, the Board of Directors of the Company approved a $10.0 million stock repurchase program which was completed in June 2025.

During the years ended December 31, 2025 and 2024, the Company repurchased 1,302,619 shares of its common stock outstanding at an average price of $11.61 per share for a total cost of $15.1 million, and 1,802,072 shares of its common stock outstanding at an average price of $10.24 per share for a total cost of $18.4 million, respectively, pursuant to the approved stock repurchase plans.

At December 31, 2025, the Company had no outstanding repurchase programs. The Company did not repurchase any shares of its common stock during the three months ended December 31, 2025.

PART II

ITEM 6. [RESERVED]

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion should be read in conjunction with the consolidated financial statements of Northfield Bancorp and the Notes thereto included elsewhere in this report (collectively, the “financial statements”).

Overview

Net income was $796,000, or $0.02 per diluted common share, and $29.9 million, or $0.72 per diluted common share, for the years ended December 31, 2025 and December 31, 2024, respectively. Significant variances from the prior year are as follows: a $22.9 million increase in net interest income, a $3.1 million increase in the provision for credit losses on loans, a $43.3 million increase in non-interest expense, which includes a $41.0 million, or $1.03 per share, non-cash, non-tax deductible goodwill impairment charge, and a $5.7 million increase in income tax expense. Net income for the year ended December 31, 2025 included additional tax expense of $580,000, or $0.01 per share, related to options that expired in May 2025. Net income for the year ended December 31, 2024 included a $3.4 million, or $0.06 per share, gain on the sale of property, additional tax expense of $795,000, or $0.02 per share, related to options that expired in June 2024, and severance expense of $683,000, or $0.01 per share, related to employee severance.

Assets increased by $87.6 million, or 1.5%, to $5.75 billion at December 31, 2025 compared to $5.67 billion at December 31, 2024. The increase was primarily due to an increase in available-for-sale debt securities of $311.6 million, or 28.3%, partially offset by decreases in loans receivable of $170.3 million, or 4.2%, goodwill of $41.0 million, or 100%, and other assets of $13.8 million, or 29.4%.

Liabilities increased by $102.3 million, or 2.1%, to $5.06 billion at December 31, 2025, from $4.96 billion at December 31, 2024, as the decrease in total deposits of $122.7 million (primarily due to a decrease in brokered deposits, which decreased by $222.9 million, or 84.6%, to $40.5 million at December 31, 2025, from $263.4 million at December 31, 2024) was more than offset by an increase in borrowings of $234.0 million.

Stockholders’ equity decreased by $14.6 million to $690.1 million at December 31, 2025, from $704.7 at December 31, 2024. The decrease was attributable to $15.0 million in stock repurchases and $21.2 million in dividend payments, partially offset by a $16.1 million decrease in accumulated other comprehensive loss associated with an increase in the estimated fair value of our debt securities available-for-sale portfolio, a $4.7 million increase in equity award activity, and net income of $796,000 for the year ended December 31, 2025.

Selected Financial Data

The summary information presented below at the dates or for each of the years presented is derived in part from our consolidated financial statements. The following information is only a summary, and should be read in conjunction with our consolidated financial statements and notes included in this Annual Report on Form 10-K.


	At December 31,
	2025		2024		2023
	(Dollars in thousands)
Selected Financial Condition Data:
Total assets	$	5,754,010	$	5,666,378	$	5,598,396
Cash and cash equivalents	163,951		167,744		229,506
Trading securities	15,215		13,884		12,549
Debt securities available-for-sale, at estimated fair value	1,412,419		1,100,817		795,464
Debt securities held-to-maturity, at amortized cost	8,339		9,303		9,866
Equity securities	5,000		14,261		10,629
Loans held-for-sale	—		4,897		—
Loans held-for-investment, net	3,856,773		4,022,224		4,203,654
Allowance for credit losses	(38,144)		(35,183)		(37,535)
Net loans held-for-investment	3,818,629		3,987,041		4,166,119
Bank-owned life insurance	182,828		175,759		171,543
FHLBNY stock, at cost	46,568		35,894		39,667
Operating lease right-of-use assets	25,789		27,771		30,202
Goodwill	—		41,012		41,012
Total liabilities	5,063,951		4,961,682		4,898,951
Deposits	4,015,809		4,138,477		3,878,435
Borrowed funds	900,216		666,402		859,272
Subordinated debentures, net of issuance costs	61,665		61,442		61,219
Operating lease liabilities	29,643		32,209		35,205
Total stockholders’ equity	$	690,059	$	704,696	$	699,445


	Years Ended December 31,
	2025		2024		2023
	(Dollars in thousands, except share data)
Selected Operating Data:
Interest income	$	249,096	$	237,908	$	208,795
Interest expense	111,730		123,423		84,128
Net interest income before provision for credit losses	137,366		114,485		124,667
Provision for credit losses	7,402		4,281		1,353
Net interest income after provision for credit losses	129,964		110,204		123,314

Non-interest income	16,950		16,822		11,896
Non-interest expense	129,863		86,525		83,450
Income before income taxes	17,051		40,501		51,760
Income tax expense	16,255		10,556		14,091
Net income	$	796	$	29,945	$	37,669
Net income per common share - basic	$	0.02	$	0.72	$	0.86
Net income per common share - diluted	$	0.02	$	0.72	$	0.86
Weighted average basic shares outstanding	40,116,839		41,567,370		43,560,844
Weighted average diluted shares outstanding	40,173,403		41,628,660		43,638,616


	At or For the Years Ended December 31,
	2025		2024		2023
Selected Financial Ratios and Other Data:
Performance Ratios:
Return on assets (ratio of net income to average total assets)(1) (2) (3)	0.01	%	0.52	%	0.68	%
Return on equity (ratio of net income to average equity)(1) (2) (3)	0.11		4.30		5.45
Interest rate spread(4)	1.92		1.45		1.82
Net interest margin(5)	2.55		2.10		2.35
Dividend payout ratio(6)	NM		72.89		60.51
Efficiency ratio(7) (8)	84.15		65.90		61.11
Non-interest expense to average total assets	2.29		1.51		1.50
Average interest-earning assets to average interest-bearing liabilities	130.14		128.77		133.01
Average equity to average total assets	12.57		12.14		12.44
Asset Quality Ratios:
Non-performing assets to total assets	0.28		0.36		0.20
Non-performing loans to total loans(9) (10)	0.42		0.51		0.27

Allowance for credit losses to total non-performing loans(11)	236.42		227.72		328.30
Allowance for credit losses to total loans held-for-investment, net(12)	0.99		0.87		0.89

Capital Ratio:



Tier 1 capital (to adjusted assets)	12.24		12.11		12.58
Other Data:
Number of full service offices	37		37		39
Full time equivalent employees	372		359		401


(1)			The year ended December 31, 2025, included a $41.0 million non-cash, non-tax deductible goodwill impairment charge and $580,000 additional tax expense related to options that expired in May 2025.
(2)			The year ended December 31, 2024, included a $2.4 million, after tax, gain on the sale of property, $795,000 additional tax expense related to options that expired in June 2024, and $492,000, after tax, of severance costs.
(3)			The year ended December 31, 2023, included $317,000, after tax, of severance costs and $96,000, after tax, of gains on loans sold.
(4)			The interest rate spread represents the difference between the weighted-average yield on interest earning assets and the weighted-average costs of interest-bearing liabilities.
(5)			The net interest margin represents net interest income as a percent of average interest-earning assets for the period.
(6)			Dividend payout ratio is calculated as total dividends declared for the year divided by net income for the year.
(7)			The efficiency ratio represents non-interest expense divided by the sum of net interest income and non-interest income.
(8)			The year ended December 31, 2025, included a $41.0 million non-cash, non-tax deductible goodwill impairment charge. The year ended December 31, 2024, included a $3.4 million, pre-tax, gain on the sale of property, and $683,000, pre-tax, of severance expense. The year ended December 31, 2023, includes $440,000, pre-tax, of severance expense.
(9)			Non-performing loans consist of non-accruing loans and loans 90 days or more past due and still accruing (excluding PCD loans), included in total loans held-for-investment, net, and non-performing loans held-for-sale, included in loans held-for-sale.
(10)			Includes originated loans held-for-investment, PCD loans, acquired loans, and loans held-for-sale.
(11)			Excludes non-performing loans held-for-sale.
(12)			Includes originated loans held-for-investment, PCD loans and acquired loans (and related allowance for credit losses).

Critical Accounting Policies

Critical accounting policies are defined as those that involve significant judgments and uncertainties, and could potentially result in materially different results under different assumptions and conditions. We believe that the most critical accounting policy upon which our financial condition and results of operation depend, and which involves the most complex subjective decisions or assessments, is the following:

Allowance for Credit Losses on Loans. The Company estimates and recognize an allowance for lifetime expected credit losses for loans and other financial assets measured at amortized cost. See Note 1 to the Company's consolidated financial statements for further discussion of the Company's accounting policies and methodologies for establishing the allowance for credit losses. We identified our policy on the allowance for credit losses on loans to be a critical accounting policy because management makes subjective and/or complex judgments about matters that are uncertain and because it is likely that materially different amounts would be reported under different conditions or using different assumptions.

The allowance for credit losses on loans is a critical accounting estimate for the following reasons:

• Changes in the provision for credit losses can materially affect our financial results;

• Estimates relating to the allowance for credit losses require us to utilize a reasonable and supportable forecast period based upon forward-looking economic scenarios in order to estimate probability of default and loss given default rates which our CECL methodology encompasses;

• The allowance for credit losses on loans is influenced by factors outside of our control such as industry and business trends, as well as economic conditions such as trends in housing prices, interest rates, gross domestic product, inflation, and unemployment; and

• Judgment is required to determine whether the models used to generate the allowance for credit losses on loans produce an estimate that is sufficient to encompass the current view of lifetime expected credit losses.

The allowance for credit losses on loans has been determined in accordance with U.S. GAAP. We are responsible for the timely and periodic determination of the amount of the allowance required. We believe that our allowance for credit losses is adequate to cover losses.

Management performs a quarterly evaluation of the adequacy of the allowance for credit losses on loans. This quarterly process is performed by the accounting department, in conjunction with the credit administration department, and approved by the Allowance Committee, which consists of the Chief Executive Officer/President, Executive Vice President (“EVP”) & Chief Risk Officer, EVP & Chief Financial Officer, EVP & Chief Lending Officer, Senior Credit Officer, Senior Vice President (“SVP”) Collections and Asset Recovery, SVP & Director of Financial Reporting and the Assistant Vice President Financial Reporting. The Chief Financial Officer performs a final review of the calculation. All supporting documentation with regard to the evaluation process is maintained by the accounting department. Each quarter a summary of the allowance for credit losses is presented by the Chief Financial Officer to the Audit Committee of the Board of Directors.

Under the CECL methodology, the allowance for credit losses on loans has two components. (1) a collective reserve for estimated expected credit losses for pools of loans that share common risk characteristics and (2) an individual reserve for loans that do not share common risk characteristics with other loans, consisting of all loans designated as TDRs prior to the adoption of ASU 2022-02 and non-accrual loans with an outstanding balance of $500,000 or greater.

Allowance for Collectively Evaluated Loans Held-for-Investment

The Company estimates the collective reserve using a risk rating migration model which calculates the expected life of loan loss percentage for each loan by generating probability of default and loss given default metrics. These metrics are multiplied by the exposure at default, taking into consideration prepayments, to calculate the quantitative component of the collective reserve. The metrics are based on the migration of loans from performing to loss by credit risk rating or delinquency categories using historical life-of-loan analysis periods for each loan portfolio pool, and the severity of loss, based on the aggregate net lifetime losses incurred using the Company's historical loss experience and comparable peer data loss history. The model's expected losses based on loss history are adjusted for qualitative adjustments. Among other things, these adjustments include and account for differences in: (i) changes in lending policies and procedures; (ii) changes in local, regional, national, and international economic and business conditions and developments that affect the collectability of our portfolio, including the condition of various market segments; (iii) changes in the experience, ability and depth of lending management and other relevant staff; (iv) changes in the quality of our loan review system; (v) the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and (vi) the effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in our existing portfolio.

The Company utilizes a two-year reasonable and supportable forecast period after which estimated losses revert to historical loss experience immediately for the remaining life of the loan. In establishing its estimate of expected credit losses, the Company utilizes five externally-sourced forward-looking economic scenarios developed by Moody's Analytics (“Moody's”) so as to incorporate uncertainties related to the economic environment. These scenarios, which range from more benign to more severe economic outlooks, include a “most likely outcome” (the “Baseline” scenario) and four less likely scenarios referred to as the “Upside” and “Downside” scenarios. Each scenario is weighted with a majority of the weighting placed on the Baseline scenario and lower weights placed on both the Upside and Downside scenarios. The weighting assigned by management is based on the economic outlook and available information at the reporting date. The model projects economic variables under each scenario based on detailed statistical analyses. The Company has identified and selected key variables that most closely correlated to its historical credit performance, which include: gross domestic product, unemployment, and three collateral indices: the Commercial Property Price Index, the Commercial Property Price Apartment Index and the Case-Shiller Home Price Index.

Our allowance for credit losses is sensitive to a number of inputs, most notably the macroeconomic forecast assumptions as well as the reasonable and supportable forecasting periods that are incorporated in our estimate of credit losses on loans. Therefore, as the macroeconomic environment and related forecasts change or decisions are made to shorten or lengthen the forecasting period, the allowance for credit losses may change materially. The following sensitivity analyses do not represent management’s expectations of the deterioration of our portfolios or the economic environment, but are provided as hypothetical scenarios to assess the sensitivity of the allowance for credit losses to changes in key inputs.

The following table details the five Moody's scenarios utilized in determining the allowance for credit losses on loans at December 31, 2025, and weightings of each scenario:

Model Scenario

Moody's Scenario Description

Weight

Upside - 4th Percentile

Upside - 10th Percentile

10%

Downside - 90th Percentile

10%

Downside - 96th Percentile

Baseline

Baseline Scenario

72%

If we placed 100% weighting on the baseline scenario, the quantitative allowance for credit losses at December 31, 2025 would have been approximately $1.8 million lower. Conversely, if we removed the upside scenarios and reallocated the weights from S0 to S4 and S1 to S3, the allowance for credit losses would have increased approximately $1.9 million. These forecasts revert to our long-term historical average loss rate after a 24-month forecasting period.

Because of the of the high degree of judgment involved in management's estimates of the allowance for credit losses, the subjectivity of assumptions used, and the potential for changes in the forecasted economic environment, there is uncertainty in such estimates. Changes in these estimates could significantly impact the allowance for credit losses on loans.

Allowance for Individually Evaluated Loans

The Company measures specific reserves for individual loans that do not share common risk characteristics with other loans, consisting of all loans designated as TDRs prior to the adoption of ASU 2022-02 and non-accrual loans with an outstanding balance of $500,000 or greater. Loans individually evaluated for impairment are assessed to determine that the loan’s carrying value is not in excess of the estimated fair value of the collateral less cost to sell, if the loan is collateral-dependent, or the present value of the expected future cash flows, if the loan is not collateral-dependent. Management performs an evaluation of each impaired loan and generally obtains updated appraisals as part of the evaluation. In addition, management adjusts estimated fair values down to appropriately consider recent market conditions, our willingness to accept a lower sales price to effect a quick sale, and costs to dispose of any supporting collateral. Determining the estimated fair value of underlying collateral (and related costs to sell) can be difficult in illiquid real estate markets and is subject to significant assumptions and estimates. Management employs an independent third-party management firm that specializes in appraisal preparation and review to ascertain the reasonableness of updated appraisals. Projecting the expected cash flows under troubled debt restructurings which are not collateral-dependent is inherently subjective and requires, among other things, an evaluation of the borrower’s current and projected financial condition. Actual results may be significantly different than our projections and our established allowance for credit losses on these loans, which could have a material effect on our financial results. Individually impaired loans that have no impairment losses are not considered for collective allowances described earlier.

We have a concentration of loans secured by real property located in New York, New Jersey, and, to a lesser extent, eastern Pennsylvania. As a substantial amount of our loan portfolio is collateralized by real estate, appraisals of the underlying value of property securing loans are critical in determining the amount of the allowance required for specific loans. Assumptions for appraisal valuations are instrumental in determining the value of properties. Overly optimistic assumptions or negative changes to assumptions could significantly impact the valuation of a property securing a loan and the related allowance determined. The assumptions supporting such appraisals are reviewed by management and an independent third-party appraiser to determine that the resulting values reasonably reflect amounts realizable on the collateral. Based on the composition of our loan portfolio, we believe the primary risks are changes in interest rates, inflation, a decline in the economy generally, or a decline in real estate market values in New York, New Jersey, or eastern Pennsylvania. Any one or a combination of these events may adversely affect our loan portfolio resulting in delinquencies, increased credit losses, and increased credit loss provisions.

Although we believe we have established and maintain the allowance for credit losses at adequate levels, changes may be necessary if future economic or other conditions differ substantially from our estimation of the current operating environment. Although management uses the information available, the level of the allowance for credit losses remains an estimate that is subject to significant judgment and short-term change. In addition, the OCC, as an integral part of its examination process, will review our allowance for credit losses on loans and may require us to recognize adjustments to the allowance based on their judgments about information available to them at the time of their examination.

Allowance for Off-Balance Sheet Credit Exposures

We also maintain an allowance for estimated losses on off-balance sheet credit risks related to loan commitments and standby letters of credit. The reserve for off-balance sheet exposures is determined using the CECL reserve factor in the related funded loan segment, adjusted for an average historical funding rate. The allowance for credit losses for off-balance sheet credit exposures is recorded in other liabilities on the consolidated balance sheets and the corresponding provision is included in other non-interest expense.

Comparison of Financial Condition at December 31, 2025 and 2024

Total assets increased by $87.6 million, or 1.5%, to $5.75 billion at December 31, 2025, from $5.67 billion at December 31, 2024. The increase was primarily due to an increase in available-for-sale debt securities of $311.6 million, or 28.3%, partially offset by decreases in loans receivable of $170.3 million, or 4.2%, goodwill of $41.0 million, or 100%, and other assets of $13.8 million, or 29.4%.

Cash and cash equivalents decreased by $3.8 million, or 2.3%, to $164.0 million at December 31, 2025, from $167.7 million at December 31, 2024. Balances fluctuate based on the timing of receipt of security and loan repayments and the redeployment of cash into higher-yielding assets such as loans and securities, deposit inflows and the funding of deposit outflows or borrowing maturities.

The Company’s available-for-sale debt securities portfolio increased by $311.6 million, or 28.3%, to $1.41 billion at December 31, 2025, from $1.10 billion at December 31, 2024. The changes reflect the purchase of higher-yielding mortgage-related securities with excess cash and proceeds from the maturities of other securities and paydown of lower-yielding multifamily loans. At December 31, 2025, $1.38 billion of the portfolio consisted of residential mortgage-backed securities issued or guaranteed by Fannie Mae, Freddie Mac, or Ginnie Mae. In addition, the Company held $32.2 million in corporate bonds, substantially all of which were considered investment grade, $614,000 in municipal bonds, and $558,000 in U.S. Government agency securities at December 31, 2025. Gross unrealized losses, net of tax, on available-for-sale debt securities and held-to-maturity securities approximated $10.5 million and $206,000, respectively, at December 31, 2025, and $21.8 million and $400,000, respectively, at December 31, 2024.

Equity securities were $5.0 million at December 31, 2025 and $14.3 million at December 31, 2024. Equity securities are primarily comprised of an investment in a Small Business Administration (“SBA”) Loan Fund. This investment is utilized by the Bank as part of its Community Reinvestment Act program. The decrease in equity securities was primarily due to a redemption, at par, of $5.0 million of our investment in the SBA Loan Fund in the second quarter of 2025 and a $4.3 million decrease in money market mutual funds, which were liquidated in the third quarter of 2025.

Loans held for investment, net, decreased by $165.5 million to $3.86 billion at December 31, 2025, from $4.02 billion at December 31, 2024, primarily due to a decrease in multifamily real estate loans, partially offset by increases in all other loan categories. The decrease in multifamily loan balances reflects the Company's continued strategic focus on managing concentration risk within its multifamily real estate loan portfolio, while maintaining disciplined loan pricing. Multifamily loans decreased $236.1 million, or 9.1%, to $2.36 billion at December 31, 2025 from $2.60 billion at December 31, 2024. Home equity loans and lines of credit increased $24.5 million, or 14.1%, to $198.6 million at December 31, 2025 from $174.1 million at December 31, 2024, attributable to new originations, existing customers drawing down on their lines of credit, and decreases in paydowns. Commercial real estate loans increased $21.6 million, or 2.4%, to $911.4 million at December 31, 2025 from $889.8 million at December 31, 2024, attributable to new originations. One-to-four family residential loans increased $14.9 million, or 9.9%, to $165.1 million at December 31, 2025 from $150.2 million at December 31, 2024, attributable to retail originations of $12.3 million through our recently established mortgage department and the purchase of $25.8 million of residential mortgage pools from other banks, partially offset by paydowns. Construction and land loans increased $8.6 million, or 24.0%, to $44.5 million at December 31, 2025 from $35.9 million at December 31, 2024, as we entered into a $10.9 million loan participation with another bank related to a multifamily development in New Jersey of which we had advanced $9.5 million through December 31, 2025. Commercial and industrial loans increased $2.7 million, or 1.7%, to $166.2 million at December 31, 2025 from $163.4 million at December 31, 2024, as the result of continued expansion of our lending team.

As of December 31, 2025, non-owner occupied commercial real estate loans (as defined by regulatory guidance) to total risk-based capital was estimated at approximately 380%. Management believes that Northfield Bank (the “Bank”) maintains appropriate risk management practices including risk assessments, board-approved underwriting policies and related procedures, which includes monitoring Bank portfolio performance, performing market analysis (economic and real estate), and stressing of the Bank’s commercial real estate portfolio under severe, adverse economic conditions. Although management believes the Bank has implemented appropriate policies and procedures to manage its commercial real estate concentration risk, the Bank’s regulators could require it to implement additional policies and procedures or could require it to maintain higher levels of regulatory capital, which might adversely affect its loan originations, the Company's ability to pay dividends, and overall profitability.

Our real estate portfolio includes credit risk exposure to loans collateralized by office buildings and multifamily properties in New York State subject to some form of rent regulation limiting increases for rent stabilized multifamily properties. At December 31, 2025, office-related loans represented $174.7 million, or 4.5% of our total loan portfolio, with an average balance of $1.8 million (although we have originated these types of loans in amounts substantially greater than this average) and a weighted average loan-to-value ratio of 58%. Approximately 39% were owner-occupied. The geographic locations of the properties collateralizing our office-related loans are: 49.9% in New York, 48.6% in New Jersey and 1.5% in Pennsylvania. At December 31, 2025, our largest office-related loan had a principal balance of $86.4 million (with a net active principal balance for the Bank of $28.8 million as we have a 33.3% participation interest), was secured by an office facility located in Staten Island, New York, and was performing in accordance with its original contractual terms. At December 31, 2025, multifamily loans that have some form of rent stabilization or rent control totaled approximately $418.8 million, or 10.9% of our total loan portfolio, with an average balance of $1.7 million (although we have originated these type of loans in amounts substantially greater than this average) and a weighted average loan-to-value ratio of 50%. At December 31, 2025, our largest rent-regulated loan had a principal balance of $16.4 million, was secured by an apartment building located in Staten Island, New York, and was performing in accordance with its original contractual terms. Management continues to closely monitor its office and rent-regulated portfolios. For further details on our rent-regulated multifamily portfolio see “Asset Quality”.

PCD loans totaled $8.3 million and $9.2 million at December 31, 2025 and December 31, 2024, respectively. The majority of the remaining PCD loan balance consists of loans acquired as part of a Federal Deposit Insurance Corporation-assisted transaction. The Company accreted interest income of $945,000 and $1.3 million attributable to PCD loans for the years ended December 31, 2025 and December 31, 2024, respectively. PCD loans had an allowance for credit losses of approximately $2.6 million and $2.9 million at December 31, 2025 and December 31, 2024, respectively.

Bank-owned life insurance increased $7.1 million, or 4.0%, to $182.8 million at December 31, 2025, as compared to $175.8 million at December 31, 2024. The increase resulted from income earned on bank-owned life insurance for the year ended December 31, 2025, which was primarily due to the restructuring and enhancements in our bank-owned life insurance policies into higher-yielding policies in the fourth quarter of 2024.

FHLBNY stock increased by $10.7 million, or 29.7%, to $46.6 million at December 31, 2025, from $35.9 million at December 31, 2024. The increase in FHLBNY stock directly correlates with higher short-term borrowing balances at December 31, 2025, as compared to December 31, 2024.

Goodwill decreased by $41.0 million, or 100%, to $0 at December 31, 2025, as the Company recorded a non-cash, non-tax deductible goodwill impairment charge in the fourth quarter of 2025, based on our annual goodwill impairment test which included market related considerations.

Other assets decreased by $11.7 million, or 25.0%, to $35.2 million at December 31, 2025, from $46.9 million at December 31, 2024. The decrease was primarily attributable to a decrease in deferred tax assets due to a decrease in unrealized losses on the securities available-for-sale portfolio.

Total liabilities increased $102.3 million, or 2.1%, to $5.06 billion at December 31, 2025 as compared to $4.96 billion at December 31, 2024. The increase was primarily attributable to an increase in borrowings of $234.0 million, partially offset by a decrease in deposits of $122.7 million. Brokered deposits decreased by $222.9 million, or 84.6%, to $40.5 million at December 31, 2025, from $263.4 million at December 31, 2024, as the Company placed less reliance on brokered deposits, which had been used as a lower-cost alternative to borrowings. The Company routinely utilizes brokered deposits and borrowed funds to manage interest rate risk, the cost of interest-bearing liabilities, and funding needs related to loan originations and deposit activity.

Deposits, excluding brokered deposits, increased $100.2 million, or 2.6%, to $3.98 billion at December 31, 2025, as compared to $3.88 billion at December 31, 2024. The increase in deposits, excluding brokered deposits, was primarily attributable to increases of $164.4 million in transaction accounts, and $3.3 million in money market accounts, partially offset by decreases of $21.9 million in time deposits, and $45.6 million in savings accounts. Growth in transaction accounts was primarily due to new municipal relationships and new commercial relationships. The decrease in time deposits and savings accounts was attributable to the Company's focus on growing low/no cost checking deposits and choosing not to compete with competitors offering higher rate time deposits and savings accounts.

Estimated gross uninsured deposits at December 31, 2025 were $1.99 billion. This total includes fully collateralized uninsured government deposits and intercompany deposits of $1.03 billion, leaving estimated uninsured deposits of approximately $952.9 million, or 23.7%, of total deposits. At December 31, 2024, estimated uninsured deposits, excluding fully collateralized uninsured governmental deposits and intercompany deposits of $923.8 million, totaled $896.5 million, or 21.7% of total deposits.

Borrowed funds increased to $961.9 million at December 31, 2025, from $727.8 million at December 31, 2024. The increase in borrowings was primarily due to a $130.0 million increase in borrowings under an overnight line of credit, and a $103.8 million increase in other borrowings, which were used in lieu of higher-costing brokered deposits. Management utilizes borrowings to mitigate interest rate risk, for short-term liquidity, and to a lesser extent from time to time, as part of leverage strategies.

Total stockholders’ equity decreased by $14.6 million to $690.1 million at December 31, 2025, from $704.7 at December 31, 2024. The decrease was attributable to $15.0 million in stock repurchases and $21.2 million in dividend payments, partially offset by a $16.1 million decrease in accumulated other comprehensive loss associated with an increase in the estimated fair value of our debt securities available-for-sale portfolio, a $4.7 million increase in equity award activity, and net income of $796,000 for the year ended December 31, 2025. During the year December 31, 2025, the Company repurchased 1.3 million shares of its common stock outstanding at an average price of $11.52 for a total of $15.0 million pursuant to the approved stock repurchase plans. As of December 31, 2025, the Company had no outstanding repurchase program.

Comparison of Operating Results for the Years Ended December 31, 2025 and 2024

Net Income. Net income was $796,000 and $29.9 million for the years ended December 31, 2025 and December 31, 2024, respectively. Significant variances from the prior year are as follows: a $22.9 million increase in net interest income, a $3.1 million increase in the provision for credit losses on loans, a $43.3 million increase in non-interest expense, which includes a $41.0 million non-cash, non-tax deductible goodwill impairment charge, and a $5.7 million increase in income tax expense.

Interest Income. Interest income increased $11.2 million, or 4.7%, to $249.1 million for the year ended December 31, 2025, from $237.9 million for the year ended December 31, 2024, The increase in interest income was primarily due to a 26 basis point increase in yields on interest-earning assets, which increased to 4.62% for the year ended December 31, 2025, from 4.36% for the year ended December 31, 2024, due to higher yields on mortgage-backed securities and loans, partially offset by a $71.0 million, or 1.3%, decrease in the average balance of interest-earning assets. The decrease was primarily due to decreases in the average balance of loans of $175.3 million, the average balance of other securities of $224.3 million, and the average balance of interest-earning deposits in financial institutions of $88.6 million, partially offset by an increase in the average balance of mortgage-backed securities of $415.9 million. The changes reflect the purchase of higher-yielding mortgage-related securities with excess cash and proceeds from the maturities of other securities and paydown of lower-yielding multifamily loans. Net interest income for the year ended December 31, 2025, included $609,000 of interest income related to the settlement of a non-accrual loan in May 2025. The Company accreted interest income related to PCD loans of $945,000 for the year ended December 31, 2025, as compared to $1.3 million for the year ended December 31, 2024. Net interest income for the year ended December 31, 2025, included loan prepayment income of $1.4 million as compared to $863,000 for the year ended December 31, 2024.

Interest Expense. Interest expense decreased $11.7 million, or 9.5%, to $111.7 million for the year ended December 31, 2025, as compared to $123.4 million for the year ended December 31, 2024. The decrease in interest expense was primarily due to a decrease in the average balance of interest-bearing liabilities of $99.1 million, or 2.3%, as well as a decrease in the cost of interest-bearing liabilities, which decreased by 21 basis points to 2.70% for the year ended December 31, 2025, from 2.91% for the year ended December 31, 2024. The average balance of interest-bearing liabilities decreased primarily due to a $229.9 million, or 23.4%, decrease in the average balance of borrowed funds, partially offset by a $130.6 million, or 4.1%, increase in the average balance of interest-bearing deposits. The decrease in the cost of interest-bearing liabilities was driven by a 20 basis point decrease in the cost of interest-bearing deposits to 2.37% from 2.57% due to the lower interest rate environment, partially offset by a seven basis point increase in the cost of borrowed funds to 3.92% from 3.85%, resulting primarily from increased utilization of short-term FHLB advances.

Net Interest Income. Net interest income for the year ended December 31, 2025, increased $22.9 million, or 20.0%, to $137.4 million, from $114.5 million for the year ended December 31, 2024, primarily due to a 45 basis point increase in net interest margin to 2.55% for the year ended December 31, 2025 from 2.10% for the year ended December 31, 2024. The increase in net interest margin was primarily due to higher yields on loans and mortgage backed securities, coupled with a decrease in the cost of interest-bearing liabilities. For the year ended December 31, 2024, net interest margin was negatively affected by approximately 10 basis points due to a leverage strategy implemented in the first quarter of 2024. In January 2024, the Company borrowed $300 million from the Federal Reserve Bank through the Bank Term Funding Program at favorable terms and conditions and invested the proceeds at higher rates. These borrowings were repaid in full as of December 31, 2024.

Provision for Credit Losses. The provision for credit losses on loans increased by $3.1 million to $7.4 million for the year ended December 31, 2025, compared to $4.3 million for the year ended December 31, 2024, primarily due to an increase in general reserves related to a worsening macroeconomic forecast in the current year within our CECL model, higher reserves associated with certain loans which were downgraded, and higher qualitative reserves in the multifamily portfolio. The increase in reserves was partially offset by a decline in loan balances and lower net-charge-offs. Net charge-offs were $4.4 million for the year ended December 31, 2025, as compared to net charge-offs of $6.6 million for the year ended December 31, 2024, which included charge-offs of $4.2 million and $5.5 million on small business unsecured commercial and industrial loans for the years ended December 31, 2025 and 2024, respectively. Management continues to monitor the small business unsecured commercial and industrial loan portfolio, which totaled $20.6 million at December 31, 2025.

Non-interest Income. Non-interest income increased by $128,000, or 0.8%, to $17.0 million for the year ended December 31, 2025, from $16.8 million for the year ended December 31, 2024. The increase was primarily due to an increase in income on bank-owned life insurance of $2.9 million, primarily related to the exchange of certain policies in the fourth quarter of 2024, which have higher yields, a $440,000 increase in fees and service charges for customer services, attributable to higher overdraft fees, and a $253,000 increase in other non-interest income, primarily due to higher loan swap fee income. The increases were partially offset by a $3.4 million gain on the sale of property in the fourth quarter of 2024.

Non-interest Expense. Non-interest expense increased $43.3 million, or 50.1%, to $129.9 million for the year ended December 31, 2025, compared to $86.5 million for the year ended December 31, 2024. The increase was primarily driven by a non-cash, non-tax deductible goodwill impairment charge of $41.0 million in the current quarter. The remaining increase in non-interest expense was primarily due to a $2.0 million increase in employee compensation and benefits, primarily attributable to higher salary expense related to annual merit increases, an increase in headcount, and higher stock compensation expense as the prior year included a credit of $461,000 related to performance stock awards not expected to vest. Partially offsetting the increase was a decrease of $683,000 related to severance expense recorded in the year ended December 31, 2024. Additionally, there was an $1.2 million increase in data processing costs attributable to an increase in core system expenses commensurate with deposit account growth and digital banking system conversion expenses, and a $380,000 increase in professional fees primarily due to outsourced consulting services and recruitment fees. Partially offsetting the increases was a $510,000 decrease in credit loss expense/(benefit) for off-balance sheet exposure. The decrease in credit loss expense/(benefit) for off-balance sheet exposure was due to a benefit of $228,000 recorded during the year ended December 31, 2025, as compared to a provision of $282,000 for the year ended December 31, 2024, due to a decrease in the pipeline of loans committed and awaiting closing. Additionally, there was a $222,000 decrease in furniture and equipment expense due to lower depreciation charges and a $360,000 decrease in other non-interest expense, primarily due to decreases in loan and collection costs and other general operating expenses.

Income Tax Expense. The Company recorded income tax expense of $16.3 million for the year ended December 31, 2025, compared to $10.6 million for the year ended December 31, 2024, with the increase due to higher taxable income. The effective tax rate for the year ended December 31, 2025, was 95.3%, compared to 26.1% for the year ended December 31, 2024, the current year rate being impacted by a $41.0 million non-tax deductible goodwill impairment charge.

Comparison of Operating Results for the Years Ended December 31, 2024 and 2023

For a discussion of our results of operations for the year ended December 31, 2024 compared to the year ended December 31, 2023, see “Part II, Item 7: Management’s Discussion and Analysis of Financial Condition and Results of Operations” Comparison of Operating Results, included in our 2024 Form 10-K, filed with the SEC on March 3, 2025.

Average Balances and Yields

The following table sets forth average balance sheets, average yields and costs, and certain other information for the years indicated. No tax-equivalent yield adjustments have been made, as we had no tax-free interest-earning assets during the years. All average balances are daily average balances based upon amortized costs. Non-accrual loans are included in the computation of average balances. The yields set forth below include the effect of deferred fees, discounts, and premiums that are amortized or accreted to interest income or interest expense.


	For the Years Ended December 31,
	2025						2024						2023
	Average Outstanding Balance		Interest		Average Yield/ Rate		Average Outstanding Balance		Interest		Average Yield/ Rate		Average Outstanding Balance		Interest		Average Yield/ Rate
	(Dollars in thousands)
Interest-earning assets:
Loans (1)	$	3,931,319	$	184,832	4.70	%	$	4,106,641	$	183,932	4.48	%	$	4,248,355	$	181,638	4.28	%
Mortgage-backed securities (2)	1,247,621		55,608		4.46		831,681		29,406		3.54		682,416		14,708		2.16
Other securities (2)	69,474		2,000		2.88		293,776		11,459		3.90		238,722		5,087		2.13
FHLBNY stock	39,691		3,128		7.88		38,350		3,704		9.66		40,684		3,113		7.65
Interest-earning deposits	100,738		3,528		3.50		189,379		9,407		4.97		97,975		4,249		4.34
Total interest-earning assets	5,388,843		249,096		4.62		5,459,827		237,908		4.36		5,308,152		208,795		3.93
Non-interest-earning assets	280,950						271,162						247,050
Total assets	$	5,669,793					$	5,730,989					$	5,555,202

Interest-bearing liabilities:
Savings, NOW, and money market accounts	$	2,516,697	$	48,970	1.95	%	$	2,449,037	$	50,228	2.05	%	$	2,463,455	$	30,408	1.23	%
Certificates of deposit	809,542		29,915		3.70		746,629		32,044		4.29		571,041		18,345		3.21
Total interest-bearing deposits	3,326,239		78,885		2.37		3,195,666		82,272		2.57		3,034,496		48,753		1.61
Borrowings	753,134		29,525		3.92		982,994		37,822		3.85		895,229		32,055		3.58
Subordinated debt	61,546		3,320		5.39		61,322		3,329		5.43		61,169		3,320		5.43
Total interest-bearing liabilities	4,140,919		111,730		2.70		4,239,982		123,423		2.91		3,990,894		84,128		2.11
Non-interest-bearing deposits	722,711						694,543						770,939

Northfield Bancorp, Inc. 10-K