LITTELFUSE INC /DE0000889331--12-272025Q2FALSESubsequent Eventsxbrli:sharesiso4217:USDiso4217:USDxbrli:shareslfus:countrylfus:associatelfus:customeriso4217:EURxbrli:purelfus:serieslfus:property00008893312024-12-292025-06-2800008893312025-07-2500008893312025-06-2800008893312024-12-2800008893312025-03-302025-06-2800008893312024-03-312024-06-2900008893312023-12-312024-06-2900008893312023-12-3000008893312024-06-290000889331us-gaap:CommonStockMember2024-12-280000889331us-gaap:AdditionalPaidInCapitalMember2024-12-280000889331us-gaap:TreasuryStockCommonMember2024-12-280000889331us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-12-280000889331us-gaap:RetainedEarningsMember2024-12-280000889331us-gaap:NoncontrollingInterestMember2024-12-280000889331us-gaap:RetainedEarningsMember2024-12-292025-03-2900008893312024-12-292025-03-290000889331us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-12-292025-03-290000889331us-gaap:AdditionalPaidInCapitalMember2024-12-292025-03-290000889331us-gaap:NoncontrollingInterestMember2024-12-292025-03-290000889331us-gaap:TreasuryStockCommonMember2024-12-292025-03-290000889331us-gaap:CommonStockMember2025-03-290000889331us-gaap:AdditionalPaidInCapitalMember2025-03-290000889331us-gaap:TreasuryStockCommonMember2025-03-290000889331us-gaap:AccumulatedOtherComprehensiveIncomeMember2025-03-290000889331us-gaap:RetainedEarningsMember2025-03-290000889331us-gaap:NoncontrollingInterestMember2025-03-2900008893312025-03-290000889331us-gaap:RetainedEarningsMember2025-03-302025-06-280000889331us-gaap:AccumulatedOtherComprehensiveIncomeMember2025-03-302025-06-280000889331us-gaap:AdditionalPaidInCapitalMember2025-03-302025-06-280000889331us-gaap:NoncontrollingInterestMember2025-03-302025-06-280000889331us-gaap:TreasuryStockCommonMember2025-03-302025-06-280000889331us-gaap:CommonStockMember2025-03-302025-06-280000889331us-gaap:CommonStockMember2025-06-280000889331us-gaap:AdditionalPaidInCapitalMember2025-06-280000889331us-gaap:TreasuryStockCommonMember2025-06-280000889331us-gaap:AccumulatedOtherComprehensiveIncomeMember2025-06-280000889331us-gaap:RetainedEarningsMember2025-06-280000889331us-gaap:NoncontrollingInterestMember2025-06-280000889331us-gaap:CommonStockMember2023-12-300000889331us-gaap:AdditionalPaidInCapitalMember2023-12-300000889331us-gaap:TreasuryStockCommonMember2023-12-300000889331us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-12-300000889331us-gaap:RetainedEarningsMember2023-12-300000889331us-gaap:NoncontrollingInterestMember2023-12-300000889331us-gaap:RetainedEarningsMember2023-12-312024-03-3000008893312023-12-312024-03-300000889331us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-12-312024-03-300000889331us-gaap:AdditionalPaidInCapitalMember2023-12-312024-03-300000889331us-gaap:NoncontrollingInterestMember2023-12-312024-03-300000889331us-gaap:TreasuryStockCommonMember2023-12-312024-03-300000889331us-gaap:CommonStockMember2024-03-300000889331us-gaap:AdditionalPaidInCapitalMember2024-03-300000889331us-gaap:TreasuryStockCommonMember2024-03-300000889331us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-03-300000889331us-gaap:RetainedEarningsMember2024-03-300000889331us-gaap:NoncontrollingInterestMember2024-03-3000008893312024-03-300000889331us-gaap:RetainedEarningsMember2024-03-312024-06-290000889331us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-03-312024-06-290000889331us-gaap:AdditionalPaidInCapitalMember2024-03-312024-06-290000889331us-gaap:NoncontrollingInterestMember2024-03-312024-06-290000889331us-gaap:TreasuryStockCommonMember2024-03-312024-06-290000889331us-gaap:CommonStockMember2024-06-290000889331us-gaap:AdditionalPaidInCapitalMember2024-06-290000889331us-gaap:TreasuryStockCommonMember2024-06-290000889331us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-06-290000889331us-gaap:RetainedEarningsMember2024-06-290000889331us-gaap:NoncontrollingInterestMember2024-06-290000889331lfus:ElectronicsSemiconductorMemberlfus:ElectronicsSegmentMember2025-03-302025-06-280000889331lfus:ElectronicsSemiconductorMemberlfus:TransportationSegmentMember2025-03-302025-06-280000889331lfus:ElectronicsSemiconductorMemberlfus:IndustrialSegmentMember2025-03-302025-06-280000889331lfus:ElectronicsSemiconductorMember2025-03-302025-06-280000889331lfus:ElectronicsSemiconductorMemberlfus:ElectronicsSegmentMember2024-12-292025-06-280000889331lfus:ElectronicsSemiconductorMemberlfus:TransportationSegmentMember2024-12-292025-06-280000889331lfus:ElectronicsSemiconductorMemberlfus:IndustrialSegmentMember2024-12-292025-06-280000889331lfus:ElectronicsSemiconductorMember2024-12-292025-06-280000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:ElectronicsSegmentMember2025-03-302025-06-280000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:TransportationSegmentMember2025-03-302025-06-280000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:IndustrialSegmentMember2025-03-302025-06-280000889331lfus:ElectronicsPassiveProductsAndSensorsMember2025-03-302025-06-280000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:ElectronicsSegmentMember2024-12-292025-06-280000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:TransportationSegmentMember2024-12-292025-06-280000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:IndustrialSegmentMember2024-12-292025-06-280000889331lfus:ElectronicsPassiveProductsAndSensorsMember2024-12-292025-06-280000889331lfus:CommercialVehicleProductsMemberlfus:ElectronicsSegmentMember2025-03-302025-06-280000889331lfus:CommercialVehicleProductsMemberlfus:TransportationSegmentMember2025-03-302025-06-280000889331lfus:CommercialVehicleProductsMemberlfus:IndustrialSegmentMember2025-03-302025-06-280000889331lfus:CommercialVehicleProductsMember2025-03-302025-06-280000889331lfus:CommercialVehicleProductsMemberlfus:ElectronicsSegmentMember2024-12-292025-06-280000889331lfus:CommercialVehicleProductsMemberlfus:TransportationSegmentMember2024-12-292025-06-280000889331lfus:CommercialVehicleProductsMemberlfus:IndustrialSegmentMember2024-12-292025-06-280000889331lfus:CommercialVehicleProductsMember2024-12-292025-06-280000889331lfus:PassengerCarProductsMemberlfus:ElectronicsSegmentMember2025-03-302025-06-280000889331lfus:PassengerCarProductsMemberlfus:TransportationSegmentMember2025-03-302025-06-280000889331lfus:PassengerCarProductsMemberlfus:IndustrialSegmentMember2025-03-302025-06-280000889331lfus:PassengerCarProductsMember2025-03-302025-06-280000889331lfus:PassengerCarProductsMemberlfus:ElectronicsSegmentMember2024-12-292025-06-280000889331lfus:PassengerCarProductsMemberlfus:TransportationSegmentMember2024-12-292025-06-280000889331lfus:PassengerCarProductsMemberlfus:IndustrialSegmentMember2024-12-292025-06-280000889331lfus:PassengerCarProductsMember2024-12-292025-06-280000889331lfus:AutomotiveSensorsMemberlfus:ElectronicsSegmentMember2025-03-302025-06-280000889331lfus:AutomotiveSensorsMemberlfus:TransportationSegmentMember2025-03-302025-06-280000889331lfus:AutomotiveSensorsMemberlfus:IndustrialSegmentMember2025-03-302025-06-280000889331lfus:AutomotiveSensorsMember2025-03-302025-06-280000889331lfus:AutomotiveSensorsMemberlfus:ElectronicsSegmentMember2024-12-292025-06-280000889331lfus:AutomotiveSensorsMemberlfus:TransportationSegmentMember2024-12-292025-06-280000889331lfus:AutomotiveSensorsMemberlfus:IndustrialSegmentMember2024-12-292025-06-280000889331lfus:AutomotiveSensorsMember2024-12-292025-06-280000889331lfus:IndustrialProductsMemberlfus:ElectronicsSegmentMember2025-03-302025-06-280000889331lfus:IndustrialProductsMemberlfus:TransportationSegmentMember2025-03-302025-06-280000889331lfus:IndustrialProductsMemberlfus:IndustrialSegmentMember2025-03-302025-06-280000889331lfus:IndustrialProductsMember2025-03-302025-06-280000889331lfus:IndustrialProductsMemberlfus:ElectronicsSegmentMember2024-12-292025-06-280000889331lfus:IndustrialProductsMemberlfus:TransportationSegmentMember2024-12-292025-06-280000889331lfus:IndustrialProductsMemberlfus:IndustrialSegmentMember2024-12-292025-06-280000889331lfus:IndustrialProductsMember2024-12-292025-06-280000889331lfus:ElectronicsSegmentMember2025-03-302025-06-280000889331lfus:TransportationSegmentMember2025-03-302025-06-280000889331lfus:IndustrialSegmentMember2025-03-302025-06-280000889331lfus:ElectronicsSegmentMember2024-12-292025-06-280000889331lfus:TransportationSegmentMember2024-12-292025-06-280000889331lfus:IndustrialSegmentMember2024-12-292025-06-280000889331lfus:ElectronicsSemiconductorMemberlfus:ElectronicsSegmentMember2024-03-312024-06-290000889331lfus:ElectronicsSemiconductorMemberlfus:TransportationSegmentMember2024-03-312024-06-290000889331lfus:ElectronicsSemiconductorMemberlfus:IndustrialSegmentMember2024-03-312024-06-290000889331lfus:ElectronicsSemiconductorMember2024-03-312024-06-290000889331lfus:ElectronicsSemiconductorMemberlfus:ElectronicsSegmentMember2023-12-312024-06-290000889331lfus:ElectronicsSemiconductorMemberlfus:TransportationSegmentMember2023-12-312024-06-290000889331lfus:ElectronicsSemiconductorMemberlfus:IndustrialSegmentMember2023-12-312024-06-290000889331lfus:ElectronicsSemiconductorMember2023-12-312024-06-290000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:ElectronicsSegmentMember2024-03-312024-06-290000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:TransportationSegmentMember2024-03-312024-06-290000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:IndustrialSegmentMember2024-03-312024-06-290000889331lfus:ElectronicsPassiveProductsAndSensorsMember2024-03-312024-06-290000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:ElectronicsSegmentMember2023-12-312024-06-290000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:TransportationSegmentMember2023-12-312024-06-290000889331lfus:ElectronicsPassiveProductsAndSensorsMemberlfus:IndustrialSegmentMember2023-12-312024-06-290000889331lfus:ElectronicsPassiveProductsAndSensorsMember2023-12-312024-06-290000889331lfus:CommercialVehicleProductsMemberlfus:ElectronicsSegmentMember2024-03-312024-06-290000889331lfus:CommercialVehicleProductsMemberlfus:TransportationSegmentMember2024-03-312024-06-290000889331lfus:CommercialVehicleProductsMemberlfus:IndustrialSegmentMember2024-03-312024-06-290000889331lfus:CommercialVehicleProductsMember2024-03-312024-06-290000889331lfus:CommercialVehicleProductsMemberlfus:ElectronicsSegmentMember2023-12-312024-06-290000889331lfus:CommercialVehicleProductsMemberlfus:TransportationSegmentMember2023-12-312024-06-290000889331lfus:CommercialVehicleProductsMemberlfus:IndustrialSegmentMember2023-12-312024-06-290000889331lfus:CommercialVehicleProductsMember2023-12-312024-06-290000889331lfus:PassengerCarProductsMemberlfus:ElectronicsSegmentMember2024-03-312024-06-290000889331lfus:PassengerCarProductsMemberlfus:TransportationSegmentMember2024-03-312024-06-290000889331lfus:PassengerCarProductsMemberlfus:IndustrialSegmentMember2024-03-312024-06-290000889331lfus:PassengerCarProductsMember2024-03-312024-06-290000889331lfus:PassengerCarProductsMemberlfus:ElectronicsSegmentMember2023-12-312024-06-290000889331lfus:PassengerCarProductsMemberlfus:TransportationSegmentMember2023-12-312024-06-290000889331lfus:PassengerCarProductsMemberlfus:IndustrialSegmentMember2023-12-312024-06-290000889331lfus:PassengerCarProductsMember2023-12-312024-06-290000889331lfus:AutomotiveSensorsMemberlfus:ElectronicsSegmentMember2024-03-312024-06-290000889331lfus:AutomotiveSensorsMemberlfus:TransportationSegmentMember2024-03-312024-06-290000889331lfus:AutomotiveSensorsMemberlfus:IndustrialSegmentMember2024-03-312024-06-290000889331lfus:AutomotiveSensorsMember2024-03-312024-06-290000889331lfus:AutomotiveSensorsMemberlfus:ElectronicsSegmentMember2023-12-312024-06-290000889331lfus:AutomotiveSensorsMemberlfus:TransportationSegmentMember2023-12-312024-06-290000889331lfus:AutomotiveSensorsMemberlfus:IndustrialSegmentMember2023-12-312024-06-290000889331lfus:AutomotiveSensorsMember2023-12-312024-06-290000889331lfus:IndustrialProductsMemberlfus:ElectronicsSegmentMember2024-03-312024-06-290000889331lfus:IndustrialProductsMemberlfus:TransportationSegmentMember2024-03-312024-06-290000889331lfus:IndustrialProductsMemberlfus:IndustrialSegmentMember2024-03-312024-06-290000889331lfus:IndustrialProductsMember2024-03-312024-06-290000889331lfus:IndustrialProductsMemberlfus:ElectronicsSegmentMember2023-12-312024-06-290000889331lfus:IndustrialProductsMemberlfus:TransportationSegmentMember2023-12-312024-06-290000889331lfus:IndustrialProductsMemberlfus:IndustrialSegmentMember2023-12-312024-06-290000889331lfus:IndustrialProductsMember2023-12-312024-06-290000889331lfus:ElectronicsSegmentMember2024-03-312024-06-290000889331lfus:TransportationSegmentMember2024-03-312024-06-290000889331lfus:IndustrialSegmentMember2024-03-312024-06-290000889331lfus:ElectronicsSegmentMember2023-12-312024-06-290000889331lfus:TransportationSegmentMember2023-12-312024-06-290000889331lfus:IndustrialSegmentMember2023-12-312024-06-290000889331lfus:DortmundFabMember2023-07-022023-09-300000889331lfus:DortmundFabMember2024-12-312024-12-310000889331lfus:DortmundFabMember2023-02-032023-02-030000889331lfus:DortmundFabMember2024-12-310000889331lfus:DortmundFabMember2025-03-302025-06-280000889331lfus:DortmundFabMember2024-12-292025-06-280000889331lfus:DortmundFabMember2024-12-292025-03-290000889331lfus:DortmundFabMember2023-12-312024-06-290000889331lfus:DortmundFabMember2023-01-012025-06-280000889331lfus:AmortizationOfUnfavorableContractsMember2024-03-312024-06-290000889331lfus:AmortizationOfUnfavorableContractsMember2023-12-312024-06-290000889331lfus:AmortizationOfInventoryStepUpMember2024-12-292025-06-280000889331lfus:AmortizationOfInventoryStepUpMember2023-12-312024-06-290000889331lfus:AdjustmentToDepreciationMember2024-03-312024-06-290000889331lfus:AdjustmentToDepreciationMember2023-12-312024-06-290000889331lfus:AdjustmentToAmortizationMember2024-03-312024-06-290000889331lfus:AdjustmentToAmortizationMember2023-12-312024-06-290000889331us-gaap:AcquisitionRelatedCostsMember2024-03-312024-06-290000889331us-gaap:AcquisitionRelatedCostsMember2024-12-292025-06-280000889331us-gaap:AcquisitionRelatedCostsMember2023-12-312024-06-290000889331lfus:AdjustmentToIncomeTaxMember2024-03-312024-06-290000889331lfus:AdjustmentToIncomeTaxMember2024-12-292025-06-280000889331lfus:AdjustmentToIncomeTaxMember2023-12-312024-06-290000889331us-gaap:LandAndLandImprovementsMember2025-06-280000889331us-gaap:LandAndLandImprovementsMember2024-12-280000889331us-gaap:BuildingAndBuildingImprovementsMember2025-06-280000889331us-gaap:BuildingAndBuildingImprovementsMember2024-12-280000889331us-gaap:MachineryAndEquipmentMember2025-06-280000889331us-gaap:MachineryAndEquipmentMember2024-12-280000889331lfus:ElectronicsSegmentMember2024-12-280000889331lfus:TransportationSegmentMember2024-12-280000889331lfus:IndustrialSegmentMember2024-12-280000889331lfus:ElectronicsSegmentMember2025-06-280000889331lfus:TransportationSegmentMember2025-06-280000889331lfus:IndustrialSegmentMember2025-06-280000889331us-gaap:UseRightsMember2025-06-280000889331lfus:PatentsLicensesAndSoftwareMember2025-06-280000889331us-gaap:DistributionRightsMember2025-06-280000889331lfus:CustomerListsTrademarksAndTradeNamesMember2025-06-280000889331us-gaap:UseRightsMember2024-12-280000889331lfus:PatentsLicensesAndSoftwareMember2024-12-280000889331us-gaap:DistributionRightsMember2024-12-280000889331lfus:CustomerListsTrademarksAndTradeNamesMember2024-12-280000889331lfus:DortmundFabMemberlfus:CustomerListsTrademarksAndTradeNamesMember2024-12-292025-06-280000889331lfus:DortmundFabMemberlfus:CustomerListsTrademarksAndTradeNamesMember2025-03-302025-06-280000889331us-gaap:EmployeeSeveranceMemberlfus:ElectronicsSegmentMember2025-03-302025-06-280000889331us-gaap:EmployeeSeveranceMemberlfus:TransportationSegmentMember2025-03-302025-06-280000889331us-gaap:EmployeeSeveranceMemberlfus:IndustrialSegmentMember2025-03-302025-06-280000889331us-gaap:EmployeeSeveranceMember2025-03-302025-06-280000889331us-gaap:EmployeeSeveranceMemberlfus:ElectronicsSegmentMember2024-12-292025-06-280000889331us-gaap:EmployeeSeveranceMemberlfus:TransportationSegmentMember2024-12-292025-06-280000889331us-gaap:EmployeeSeveranceMemberlfus:IndustrialSegmentMember2024-12-292025-06-280000889331us-gaap:EmployeeSeveranceMember2024-12-292025-06-280000889331us-gaap:OtherRestructuringMemberlfus:ElectronicsSegmentMember2025-03-302025-06-280000889331us-gaap:OtherRestructuringMemberlfus:TransportationSegmentMember2025-03-302025-06-280000889331us-gaap:OtherRestructuringMemberlfus:IndustrialSegmentMember2025-03-302025-06-280000889331us-gaap:OtherRestructuringMember2025-03-302025-06-280000889331us-gaap:OtherRestructuringMemberlfus:ElectronicsSegmentMember2024-12-292025-06-280000889331us-gaap:OtherRestructuringMemberlfus:TransportationSegmentMember2024-12-292025-06-280000889331us-gaap:OtherRestructuringMemberlfus:IndustrialSegmentMember2024-12-292025-06-280000889331us-gaap:OtherRestructuringMember2024-12-292025-06-280000889331us-gaap:EmployeeSeveranceMemberlfus:ElectronicsSegmentMember2024-03-312024-06-290000889331us-gaap:EmployeeSeveranceMemberlfus:TransportationSegmentMember2024-03-312024-06-290000889331us-gaap:EmployeeSeveranceMemberlfus:IndustrialSegmentMember2024-03-312024-06-290000889331us-gaap:EmployeeSeveranceMember2024-03-312024-06-290000889331us-gaap:EmployeeSeveranceMemberlfus:ElectronicsSegmentMember2023-12-312024-06-290000889331us-gaap:EmployeeSeveranceMemberlfus:TransportationSegmentMember2023-12-312024-06-290000889331us-gaap:EmployeeSeveranceMemberlfus:IndustrialSegmentMember2023-12-312024-06-290000889331us-gaap:EmployeeSeveranceMember2023-12-312024-06-290000889331us-gaap:OtherRestructuringMemberlfus:ElectronicsSegmentMember2024-03-312024-06-290000889331us-gaap:OtherRestructuringMemberlfus:TransportationSegmentMember2024-03-312024-06-290000889331us-gaap:OtherRestructuringMemberlfus:IndustrialSegmentMember2024-03-312024-06-290000889331us-gaap:OtherRestructuringMember2024-03-312024-06-290000889331us-gaap:OtherRestructuringMemberlfus:ElectronicsSegmentMember2023-12-312024-06-290000889331us-gaap:OtherRestructuringMemberlfus:TransportationSegmentMember2023-12-312024-06-290000889331us-gaap:OtherRestructuringMemberlfus:IndustrialSegmentMember2023-12-312024-06-290000889331us-gaap:OtherRestructuringMember2023-12-312024-06-290000889331lfus:TransportationSegmentMember2024-12-292025-03-290000889331us-gaap:LineOfCreditMember2025-06-280000889331us-gaap:LineOfCreditMember2024-12-280000889331us-gaap:UnsecuredDebtMember2025-06-280000889331us-gaap:UnsecuredDebtMember2024-12-280000889331lfus:EuroSeniorNotesSeriesBMemberus-gaap:SeniorNotesMember2025-06-280000889331lfus:EuroSeniorNotesSeriesBMemberus-gaap:SeniorNotesMember2024-12-280000889331lfus:USSeniorNotesSeriesADue2025Memberus-gaap:SeniorNotesMember2025-06-280000889331lfus:USSeniorNotesSeriesADue2025Memberus-gaap:SeniorNotesMember2024-12-280000889331lfus:USSeniorNotesSeriesBDue2027Memberus-gaap:SeniorNotesMember2025-06-280000889331lfus:USSeniorNotesSeriesBDue2027Memberus-gaap:SeniorNotesMember2024-12-280000889331lfus:USSeniorNotesSeriesBDue2030Memberus-gaap:SeniorNotesMember2025-06-280000889331lfus:USSeniorNotesSeriesBDue2030Memberus-gaap:SeniorNotesMember2024-12-280000889331lfus:USSeniorNotesDue2032Memberus-gaap:SeniorNotesMember2025-06-280000889331lfus:USSeniorNotesDue2032Memberus-gaap:SeniorNotesMember2024-12-280000889331us-gaap:NotesPayableOtherPayablesMember2025-06-280000889331us-gaap:NotesPayableOtherPayablesMember2024-12-280000889331us-gaap:UnsecuredDebtMember2022-06-300000889331us-gaap:UnsecuredDebtMember2022-06-302022-06-300000889331us-gaap:SecuredOvernightFinancingRateSofrMembersrt:MinimumMemberus-gaap:LineOfCreditMember2022-06-302022-06-300000889331us-gaap:SecuredOvernightFinancingRateSofrMembersrt:MaximumMemberus-gaap:LineOfCreditMember2022-06-302022-06-300000889331us-gaap:SecuredOvernightFinancingRateSofrMemberus-gaap:LineOfCreditMember2022-06-302022-06-300000889331us-gaap:BaseRateMembersrt:MinimumMemberus-gaap:LineOfCreditMember2022-06-302022-06-300000889331us-gaap:BaseRateMembersrt:MaximumMemberus-gaap:LineOfCreditMember2022-06-302022-06-300000889331srt:MinimumMemberus-gaap:LineOfCreditMember2022-06-302022-06-300000889331srt:MaximumMemberus-gaap:LineOfCreditMember2022-06-302022-06-300000889331lfus:PeriodOneMemberus-gaap:UnsecuredDebtMember2022-09-300000889331lfus:PeriodTwoMemberus-gaap:UnsecuredDebtMember2022-09-300000889331us-gaap:UnsecuredDebtMember2025-03-302025-06-280000889331us-gaap:UnsecuredDebtMember2024-12-292025-06-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2022-05-120000889331lfus:CreditAgreementMemberlfus:UnhedgedPortionMember2025-06-280000889331lfus:CreditAgreementMemberlfus:HedgedPortionMember2025-06-280000889331lfus:EuroSeniorNotesSeriesAAndBMemberus-gaap:SeniorNotesMember2016-12-080000889331lfus:EuroSeniorNotesSeriesAMemberus-gaap:SeniorNotesMember2016-12-080000889331lfus:EuroSeniorNotesSeriesBMemberus-gaap:SeniorNotesMember2016-12-080000889331lfus:EuroSeniorNotesSeriesAMemberus-gaap:SeniorNotesMember2016-12-082016-12-080000889331lfus:USSeniorNotesSeriesAAndBMemberus-gaap:SeniorNotesMember2016-12-080000889331lfus:USSeniorNotesSeriesAMemberus-gaap:SeniorNotesMember2017-02-150000889331lfus:USSeniorNotesSeriesBMemberus-gaap:SeniorNotesMember2017-02-150000889331lfus:USSeniorNotesSeriesAMemberus-gaap:SeniorNotesMember2022-04-032022-07-020000889331lfus:USSeniorNotesAAndBDue2025And2030Memberus-gaap:SeniorNotesMember2017-11-150000889331lfus:USSeniorNotesSeriesADue2025Memberus-gaap:SeniorNotesMember2018-01-160000889331lfus:USSeniorNotesSeriesBDue2030Memberus-gaap:SeniorNotesMember2018-01-160000889331lfus:USSeniorNotesSeriesBDue2030Memberus-gaap:SeniorNotesMember2025-03-302025-06-280000889331lfus:USSeniorNotes2032Memberus-gaap:SeniorNotesMember2022-07-180000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:August2025CollarsMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:September2025CollarsMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:November2025CollarsMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:November2025CollarsIIMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:January2026CollarsMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:February2026CollarsMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:March22026CollarsMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:March302026CollarsMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:June12026CollarsMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:June292026CollarsMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberlfus:August32026CollarsMemberus-gaap:CashFlowHedgingMember2024-07-010000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2025-03-302025-06-280000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2024-12-292025-06-280000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2025-06-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2025-03-302025-06-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2024-12-292025-06-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2025-06-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2024-12-280000889331us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2024-12-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMemberus-gaap:InterestExpenseMember2025-03-302025-06-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMemberus-gaap:InterestExpenseMember2024-03-312024-06-290000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMemberus-gaap:InterestExpenseMember2024-12-292025-06-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMemberus-gaap:InterestExpenseMember2023-12-312024-06-290000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMember2025-03-302025-06-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMember2024-03-312024-06-290000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMember2024-12-292025-06-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMember2023-12-312024-06-290000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMemberus-gaap:SellingGeneralAndAdministrativeExpensesMember2025-03-302025-06-280000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMemberus-gaap:SellingGeneralAndAdministrativeExpensesMember2024-03-312024-06-290000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2024-03-312024-06-290000889331us-gaap:InterestRateSwapMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2023-12-312024-06-290000889331us-gaap:ForeignExchangeOptionMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2025-03-302025-06-280000889331us-gaap:ForeignExchangeOptionMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2024-03-312024-06-290000889331us-gaap:ForeignExchangeOptionMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2024-12-292025-06-280000889331us-gaap:ForeignExchangeOptionMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CashFlowHedgingMember2023-12-312024-06-290000889331us-gaap:FairValueInputsLevel1Member2025-06-280000889331us-gaap:FairValueInputsLevel2Member2025-06-280000889331us-gaap:FairValueInputsLevel3Member2025-06-280000889331us-gaap:FairValueInputsLevel1Member2024-12-280000889331us-gaap:FairValueInputsLevel2Member2024-12-280000889331us-gaap:FairValueInputsLevel3Member2024-12-280000889331us-gaap:CarryingReportedAmountFairValueDisclosureMemberlfus:EuroSeniorNotesSeriesBMemberus-gaap:SeniorNotesMember2025-06-280000889331us-gaap:EstimateOfFairValueFairValueDisclosureMemberlfus:EuroSeniorNotesSeriesBMemberus-gaap:SeniorNotesMember2025-06-280000889331us-gaap:CarryingReportedAmountFairValueDisclosureMemberlfus:EuroSeniorNotesSeriesBMemberus-gaap:SeniorNotesMember2024-12-280000889331us-gaap:EstimateOfFairValueFairValueDisclosureMemberlfus:EuroSeniorNotesSeriesBMemberus-gaap:SeniorNotesMember2024-12-280000889331us-gaap:CarryingReportedAmountFairValueDisclosureMemberlfus:USSeniorNotesSeriesADue2025Memberus-gaap:SeniorNotesMember2025-06-280000889331us-gaap:EstimateOfFairValueFairValueDisclosureMemberlfus:USSeniorNotesSeriesADue2025Memberus-gaap:SeniorNotesMember2025-06-280000889331us-gaap:CarryingReportedAmountFairValueDisclosureMemberlfus:USSeniorNotesSeriesADue2025Memberus-gaap:SeniorNotesMember2024-12-280000889331us-gaap:EstimateOfFairValueFairValueDisclosureMemberlfus:USSeniorNotesSeriesADue2025Memberus-gaap:SeniorNotesMember2024-12-280000889331us-gaap:CarryingReportedAmountFairValueDisclosureMemberlfus:USSeniorNotesSeriesBDue2027Memberus-gaap:SeniorNotesMember2025-06-280000889331us-gaap:EstimateOfFairValueFairValueDisclosureMemberlfus:USSeniorNotesSeriesBDue2027Memberus-gaap:SeniorNotesMember2025-06-280000889331us-gaap:CarryingReportedAmountFairValueDisclosureMemberlfus:USSeniorNotesSeriesBDue2027Memberus-gaap:SeniorNotesMember2024-12-280000889331us-gaap:EstimateOfFairValueFairValueDisclosureMemberlfus:USSeniorNotesSeriesBDue2027Memberus-gaap:SeniorNotesMember2024-12-280000889331us-gaap:CarryingReportedAmountFairValueDisclosureMemberlfus:USSeniorNotesSeriesBDue2030Memberus-gaap:SeniorNotesMember2025-06-280000889331us-gaap:EstimateOfFairValueFairValueDisclosureMemberlfus:USSeniorNotesSeriesBDue2030Memberus-gaap:SeniorNotesMember2025-06-280000889331us-gaap:CarryingReportedAmountFairValueDisclosureMemberlfus:USSeniorNotesSeriesBDue2030Memberus-gaap:SeniorNotesMember2024-12-280000889331us-gaap:EstimateOfFairValueFairValueDisclosureMemberlfus:USSeniorNotesSeriesBDue2030Memberus-gaap:SeniorNotesMember2024-12-280000889331us-gaap:CarryingReportedAmountFairValueDisclosureMemberlfus:USSeniorNotesDue2032Memberus-gaap:SeniorNotesMember2025-06-280000889331us-gaap:EstimateOfFairValueFairValueDisclosureMemberlfus:USSeniorNotesDue2032Memberus-gaap:SeniorNotesMember2025-06-280000889331us-gaap:CarryingReportedAmountFairValueDisclosureMemberlfus:USSeniorNotesDue2032Memberus-gaap:SeniorNotesMember2024-12-280000889331us-gaap:EstimateOfFairValueFairValueDisclosureMemberlfus:USSeniorNotesDue2032Memberus-gaap:SeniorNotesMember2024-12-2800008893312024-10-042024-10-040000889331srt:MinimumMembersrt:ScenarioForecastMemberus-gaap:SubsequentEventMember2026-01-012026-12-310000889331srt:MaximumMembersrt:ScenarioForecastMemberus-gaap:SubsequentEventMember2026-01-012026-12-310000889331us-gaap:ForeignPlanMember2025-03-302025-06-280000889331us-gaap:ForeignPlanMember2024-03-312024-06-290000889331us-gaap:ForeignPlanMember2023-12-312024-06-290000889331us-gaap:ForeignPlanMember2024-12-292025-06-280000889331us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2025-03-302025-06-280000889331us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-03-312024-06-290000889331us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2025-03-302025-06-280000889331us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2024-03-312024-06-290000889331us-gaap:AccumulatedTranslationAdjustmentMember2025-03-302025-06-280000889331us-gaap:AccumulatedTranslationAdjustmentMember2024-03-312024-06-290000889331us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-12-292025-06-280000889331us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-12-312024-06-290000889331us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2024-12-292025-06-280000889331us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-12-312024-06-290000889331us-gaap:AccumulatedTranslationAdjustmentMember2024-12-292025-06-280000889331us-gaap:AccumulatedTranslationAdjustmentMember2023-12-312024-06-290000889331us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-12-280000889331us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2024-12-280000889331us-gaap:AccumulatedTranslationAdjustmentMember2024-12-280000889331us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2025-06-280000889331us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2025-06-280000889331us-gaap:AccumulatedTranslationAdjustmentMember2025-06-280000889331us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-12-300000889331us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-12-300000889331us-gaap:AccumulatedTranslationAdjustmentMember2023-12-300000889331us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-06-290000889331us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2024-06-290000889331us-gaap:AccumulatedTranslationAdjustmentMember2024-06-290000889331us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2025-03-302025-06-280000889331us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-03-312024-06-290000889331us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-12-292025-06-280000889331us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-12-312024-06-290000889331lfus:A2024ShareRepurchaseProgramMember2024-04-252024-04-250000889331lfus:A2024ShareRepurchaseProgramMember2024-04-250000889331lfus:A2024ShareRepurchaseProgramMember2024-12-292025-06-280000889331lfus:A2021ShareRepurchaseProgramMember2023-12-312024-06-290000889331lfus:A2024ShareRepurchaseProgramMember2023-12-312024-06-290000889331us-gaap:OperatingSegmentsMemberlfus:ElectronicsSegmentMember2025-03-302025-06-280000889331us-gaap:OperatingSegmentsMemberlfus:ElectronicsSegmentMember2024-03-312024-06-290000889331us-gaap:OperatingSegmentsMemberlfus:ElectronicsSegmentMember2024-12-292025-06-280000889331us-gaap:OperatingSegmentsMemberlfus:ElectronicsSegmentMember2023-12-312024-06-290000889331us-gaap:OperatingSegmentsMemberlfus:TransportationSegmentMember2025-03-302025-06-280000889331us-gaap:OperatingSegmentsMemberlfus:TransportationSegmentMember2024-03-312024-06-290000889331us-gaap:OperatingSegmentsMemberlfus:TransportationSegmentMember2024-12-292025-06-280000889331us-gaap:OperatingSegmentsMemberlfus:TransportationSegmentMember2023-12-312024-06-290000889331us-gaap:OperatingSegmentsMemberlfus:IndustrialSegmentMember2025-03-302025-06-280000889331us-gaap:OperatingSegmentsMemberlfus:IndustrialSegmentMember2024-03-312024-06-290000889331us-gaap:OperatingSegmentsMemberlfus:IndustrialSegmentMember2024-12-292025-06-280000889331us-gaap:OperatingSegmentsMemberlfus:IndustrialSegmentMember2023-12-312024-06-290000889331us-gaap:OperatingSegmentsMember2025-03-302025-06-280000889331us-gaap:OperatingSegmentsMember2024-03-312024-06-290000889331us-gaap:OperatingSegmentsMember2024-12-292025-06-280000889331us-gaap:OperatingSegmentsMember2023-12-312024-06-290000889331us-gaap:CorporateNonSegmentMember2025-03-302025-06-280000889331us-gaap:CorporateNonSegmentMember2024-03-312024-06-290000889331us-gaap:CorporateNonSegmentMember2024-12-292025-06-280000889331us-gaap:CorporateNonSegmentMember2023-12-312024-06-290000889331us-gaap:OperatingIncomeLossMember2025-03-302025-06-280000889331us-gaap:OperatingIncomeLossMember2024-12-292025-06-280000889331us-gaap:OperatingIncomeLossMember2024-03-312024-06-290000889331us-gaap:OperatingIncomeLossMember2023-12-312024-06-290000889331country:US2025-03-302025-06-280000889331country:US2024-03-312024-06-290000889331country:US2024-12-292025-06-280000889331country:US2023-12-312024-06-290000889331country:CN2025-03-302025-06-280000889331country:CN2024-03-312024-06-290000889331country:CN2024-12-292025-06-280000889331country:CN2023-12-312024-06-290000889331lfus:OtherCountriesMember2025-03-302025-06-280000889331lfus:OtherCountriesMember2024-03-312024-06-290000889331lfus:OtherCountriesMember2024-12-292025-06-280000889331lfus:OtherCountriesMember2023-12-312024-06-290000889331country:US2025-06-280000889331country:US2024-12-280000889331country:CN2025-06-280000889331country:CN2024-12-280000889331country:MX2025-06-280000889331country:MX2024-12-280000889331country:DE2025-06-280000889331country:DE2024-12-280000889331country:PH2025-06-280000889331country:PH2024-12-280000889331lfus:OtherCountriesMember2025-06-280000889331lfus:OtherCountriesMember2024-12-280000889331country:MX2024-12-292025-06-280000889331country:MX2023-12-312024-06-290000889331country:DE2024-12-292025-06-280000889331country:DE2023-12-312024-06-290000889331country:PH2024-12-292025-06-280000889331country:PH2023-12-312024-06-290000889331lfus:PowersemMemberus-gaap:RelatedPartyMember2025-06-280000889331lfus:EBTechMemberus-gaap:RelatedPartyMember2025-06-280000889331lfus:ATECMemberus-gaap:RelatedPartyMember2025-06-280000889331lfus:PowersemMemberus-gaap:RelatedPartyMember2025-03-302025-06-280000889331lfus:EBTechMemberus-gaap:RelatedPartyMember2025-03-302025-06-280000889331lfus:ATECMemberus-gaap:RelatedPartyMember2025-03-302025-06-280000889331lfus:PowersemMemberus-gaap:RelatedPartyMember2024-03-312024-06-290000889331lfus:EBTechMemberus-gaap:RelatedPartyMember2024-03-312024-06-290000889331lfus:ATECMemberus-gaap:RelatedPartyMember2024-03-312024-06-290000889331lfus:PowersemMemberus-gaap:RelatedPartyMember2024-12-292025-06-280000889331lfus:EBTechMemberus-gaap:RelatedPartyMember2024-12-292025-06-280000889331lfus:ATECMemberus-gaap:RelatedPartyMember2024-12-292025-06-280000889331lfus:PowersemMemberus-gaap:RelatedPartyMember2023-12-312024-06-290000889331lfus:EBTechMemberus-gaap:RelatedPartyMember2023-12-312024-06-290000889331lfus:ATECMemberus-gaap:RelatedPartyMember2023-12-312024-06-290000889331lfus:PowersemMemberus-gaap:RelatedPartyMember2025-06-280000889331lfus:EBTechMemberus-gaap:RelatedPartyMember2025-06-280000889331lfus:ATECMemberus-gaap:RelatedPartyMember2025-06-280000889331lfus:PowersemMemberus-gaap:RelatedPartyMember2024-12-280000889331lfus:EBTechMemberus-gaap:RelatedPartyMember2024-12-280000889331lfus:ATECMemberus-gaap:RelatedPartyMember2024-12-28

United States

Securities and Exchange Commission

Washington, D.C. 20549

FORM 10-Q

(Mark One)


☒			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 28, 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 number 0-20388

LITTELFUSE, INC.

(Exact name of registrant as specified in its charter)


Delaware		36-3795742
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)
6133 North River Road
Suite 500
Rosemont	Illinois	60018
(Address of principal executive offices)		(ZIP Code)

Registrant’s telephone number, including area code: 773-628-1000

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Trading Symbol

Name of exchange on which registered

Common Stock, $0.01 par value

LFUS

NASDAQ

Global Select Market

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 [X] No [ ]

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

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes [X] 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 (Check one): Large accelerated filer [X] 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. Yes [ ] No [ ]

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

As of July 25, 2025, the registrant had outstanding 24,781,558 shares of Common Stock, net of Treasury Shares.

Table of Contents

TABLE OF CONTENTS


		Page

PART I	FINANCIAL INFORMATION
Item 1.	Financial Statements
	Condensed Consolidated Balance Sheets as of June 28, 2025 (unaudited) and December 28, 2024	3
	Condensed Consolidated Statements of Net Income for the three and six months ended June 28, 2025 (unaudited) and June 29, 2024 (unaudited)	4
	Condensed Consolidated Statements of Comprehensive Income for the three and six months ended June 28, 2025 (unaudited) and June 29, 2024 (unaudited)	5
	Condensed Consolidated Statements of Cash Flows for the six months ended June 28, 2025 (unaudited) and June 29, 2024 (unaudited)	6
	Condensed Consolidated Statements of Stockholders' Equity for the six months ended June 28, 2025 (unaudited) and June 29, 2024 (unaudited)	7
	Notes to Condensed Consolidated Financial Statements (unaudited)	9
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	31
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	41
Item 4.	Controls and Procedures	41
PART II	OTHER INFORMATION
Item 1.	Legal Proceedings	43
Item 1A.	Risk Factors	43
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	43
Item 3.	Defaults Upon Senior Securities	43
Item 4.	Mine Safety Disclosures	44
Item 5.	Other Information	44
Item 6.	Exhibits	44
Signatures		45

Table of Contents

ITEM 1. FINANCIAL STATEMENTS

LITTELFUSE, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS


	(Unaudited)
(in thousands, except share and per share data)	June 28, 2025		December 28, 2024
ASSETS
Current assets:
Cash and cash equivalents (Note 1)	$	685,184	$	724,924
Short-term investments	298		976
Trade receivables, less allowances of $73,121 and $69,990 at June 28, 2025 and December 28, 2024, respectively	363,574		294,371
Inventories (Note 3)	412,164		416,273
Prepaid income taxes and income taxes receivable	9,018		11,749
Prepaid expenses and other current assets	71,812		103,716
Total current assets	1,542,050		1,552,009











Net property, plant, and equipment (Note 4)	516,517		477,068
Intangible assets, net of amortization (Note 5)	474,177		482,118
Goodwill (Note 5)	1,359,422		1,228,502
Investments	21,602		23,245
Deferred income taxes	6,304		4,899
Right of use lease assets	89,161		72,211
Other long-term assets	56,648		51,727
Total assets	$	4,065,881	$	3,891,779
LIABILITIES AND EQUITY
Current liabilities:
Accounts payable	$	181,902	$	188,359



Accrued liabilities (Note 6)	154,531		148,276
Accrued income taxes	25,617		29,658
Current portion of long-term debt (Note 8)	17,692		67,612
Total current liabilities	379,742		433,905
Long-term debt, less current portion (Note 8)	792,524		788,502
Deferred income taxes	103,285		95,532
Accrued post-retirement benefits	33,179		29,836
Non-current lease liabilities	75,543		60,559
Other long-term liabilities	82,643		69,833
Total liabilities	$	1,466,916	$	1,478,167
Commitments and contingencies (Note 15)
Shareholders’ equity:
Common stock, par value $0.01 per share: 34,000,000 shares authorized; shares issued, June 28, 2025–26,861,528; December 28, 2024–26,758,730	263		262
Additional paid-in capital	1,064,128		1,049,079
Treasury stock, at cost: 2,080,876 and 1,937,380 shares, respectively	(336,927)		(305,351)
Accumulated other comprehensive loss	(10,851)		(146,361)
Retained earnings	1,881,737		1,815,628
Littelfuse, Inc. shareholders’ equity	2,598,350		2,413,257
Non-controlling interest	615		355
Total equity	2,598,965		2,413,612
Total liabilities and equity	$	4,065,881	$	3,891,779

See accompanying Notes to Condensed Consolidated Financial Statements.

Table of Contents

LITTELFUSE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF NET INCOME

(Unaudited)


	Three Months Ended				Six Months Ended
(in thousands, except per share data)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Net sales	$	613,413	$	558,489	$	1,167,720	$	1,093,874
Cost of sales	381,359		351,485		728,410		699,062
Gross profit	232,054		207,004		439,310		394,812

Selling, general, and administrative expenses	95,517		93,371		183,225		179,498

Research and development expenses	26,401		27,146		52,449		54,813
Amortization of intangibles	14,852		15,729		29,183		31,554
Restructuring, impairment, and other charges	2,506		5,252		11,525		8,489
Total operating expenses	139,276		141,498		276,382		274,354
Operating income	92,778		65,506		162,928		120,458

Interest expense	8,568		9,975		17,443		19,586
Foreign exchange loss (gain)	10,448		(315)		15,291		(5,357)
Other income, net	(4,452)		(5,298)		(7,967)		(10,619)
Income before income taxes	78,214		61,144		138,161		116,848
Income taxes	20,872		15,678		37,248		22,930
Net income	$	57,342	$	45,466	$	100,913	$	93,918

Earnings per share:
Basic	$	2.32	$	1.83	$	4.08	$	3.78
Diluted	$	2.30	$	1.82	$	4.05	$	3.75

Weighted-average shares and equivalent shares outstanding:
Basic	24,755		24,822		24,760		24,867
Diluted	24,905		25,030		24,938		25,075

See accompanying Notes to Condensed Consolidated Financial Statements.

Table of Contents

LITTELFUSE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)


	Three Months Ended				Six Months Ended
(in thousands)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Net income	$	57,342	$	45,466	$	100,913	$	93,918
Other comprehensive income (loss):
Pension and postemployment adjustments, net of tax	184		326		403		670


Cash flow hedges, net of tax	5,830		(18)		6,418		1,908
Foreign currency translation adjustments, net of tax	91,899		(21,375)		128,689		(53,936)
Comprehensive income	$	155,255	$	24,399	$	236,423	$	42,560

See accompanying Notes to Condensed Consolidated Financial Statements.

Table of Contents

LITTELFUSE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)


	Six Months Ended
(in thousands)	June 28, 2025		June 29, 2024
OPERATING ACTIVITIES
Net income	$	100,913	$	93,918
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	37,805		33,719
Amortization of intangibles	29,183		31,554

Deferred revenue	2,844		(1,272)

Impairment charges	136		933

Stock-based compensation	13,447		16,888
Loss on investments and other assets	2,027		1,148

Deferred income taxes	(807)		(12,427)
Other	2,123		2,618
Changes in operating assets and liabilities:
Trade receivables	(52,635)		(36,474)
Inventories	23,316		16,241
Accounts payable	(7,001)		6,819



Accrued liabilities and income taxes	(14,425)		(28,829)
Prepaid expenses and other assets	11,299		1,738
Net cash provided by operating activities	148,225		126,574
INVESTING ACTIVITIES
Acquisitions of businesses, net of cash acquired	(57,417)		—

Purchases of property, plant, and equipment	(32,999)		(34,674)
Net proceeds from sale of property, plant and equipment, and other	712		7,997
Net cash used in investing activities	(89,704)		(26,677)
FINANCING ACTIVITIES



Payments of senior notes payable	(50,000)		—
Repayments of other debts	(1,365)		(1,351)
Payments of term loan	(7,500)		(3,750)

Net proceeds (payments) related to stock-based award activities	552		(997)
Repurchases of common stock, with excise tax	(27,553)		(40,862)

Cash dividends paid	(34,677)		(32,330)
Net cash used in financing activities	(120,543)		(79,290)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	22,468		(14,434)
(Decrease) increase in cash, cash equivalents, and restricted cash	(39,554)		6,173
Cash, cash equivalents, and restricted cash at beginning of period	726,437		557,123
Cash, cash equivalents, and restricted cash at end of period	$	686,883	$	563,296
Supplementary Cash Flow Information
Reconciliation of cash and cash equivalents:
Cash and cash equivalents	$	685,184	$	561,742

Restricted cash included in other long-term assets	1,699		1,554
Cash paid during the period for interest	17,834		19,621

Capital expenditures, not yet paid	5,514		8,386

See accompanying Notes to Condensed Consolidated Financial Statements.

Table of Contents

LITTELFUSE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(Unaudited)


	Littelfuse, Inc. Shareholders’ Equity
(in thousands, except share and per share data)	Common Stock		Addl. Paid in Capital		Treasury Stock		Accum. Other Comp. Income (Loss)		Retained Earnings		Non-controlling Interest		Total
Balance at December 28, 2024	$	262	$	1,049,079	$	(305,351)	$	(146,361)	$	1,815,628	$	355	$	2,413,612
Net income	—		—		—		—		43,571		—		43,571



Other comprehensive income, net of tax	—		—		—		37,597		—		—		37,597
Stock-based compensation	—		4,855		—		—		—		—		4,855
Non-controlling interest	—		—		—		—		(70)		70		—
Withheld shares on restricted share units for withholding taxes	—		—		(62)		—		—		—		(62)
Stock options exercised	—		2,143		—		—		—		—		2,143
Repurchases of common stock, with excise tax	—		—		(27,626)		—		—		—		(27,626)
Cash dividends paid ($0.70 per share)	—		—		—		—		(17,335)		—		(17,335)
Balance at March 29, 2025	$	262	$	1,056,077	$	(333,039)	$	(108,764)	$	1,841,794	$	425	$	2,456,755
Net income	—		—		—		—		57,342		—		57,342



Other comprehensive loss, net of tax	—		—		—		97,913		—		—		97,913
Stock-based compensation	—		8,592		—		—		—		—		8,592
Non-controlling interest	—		(3,023)		—		—		(57)		190		(2,890)
Withheld shares on restricted share units for withholding taxes	—		—		(4,011)		—		—		—		(4,011)
Stock options exercised	1		2,482		—		—		—		—		2,483
Repurchase of common stock, with excise tax	—		—		123		—		—		—		123
Cash dividends paid ($0.70 per share)	—		—		—		—		(17,342)		—		(17,342)
Balance at June 28, 2025	$	263	$	1,064,128	$	(336,927)	$	(10,851)	$	1,881,737	$	615	$	2,598,965

Table of Contents


	Littelfuse, Inc. Shareholders’ Equity
(in thousands, except share and per share data)	Common Stock		Addl. Paid in Capital		Treasury Stock		Accum. Other Comp. Loss		Retained Earnings		Non-controlling Interest		Total
Balance at December 30, 2023	$	262	$	1,012,325	$	(259,263)	$	(55,817)	$	1,782,662	$	312	$	2,480,481
Net income	—		—		—		—		48,452		—		48,452



Other comprehensive loss, net of tax	—		—		—		(30,291)		—		—		(30,291)
Stock-based compensation	—		3,617		—		—		—		—		3,617
Non-controlling interest	—		—		—		—		2		(2)		—
Withheld shares on restricted share units for withholding taxes	—		—		(4)		—		—		—		(4)
Stock options exercised	—		1,369		—		—		—		—		1,369
Repurchases of common stock, with excise tax	—		—		(16,131)		—		—		—		(16,131)
Cash dividends paid ($0.65 per share)	—		—		—		—		(16,200)		—		(16,200)
Balance at March 30, 2024	$	262	$	1,017,311	$	(275,398)	$	(86,108)	$	1,814,916	$	310	$	2,471,293
Net income	—		—		—		—		45,466		—		45,466



Other comprehensive loss, net of tax	—		—		—		(21,067)		—		—		(21,067)
Stock-based compensation	—		13,271		—		—		—		—		13,271
Non-controlling interest	—		—		—		—		(48)		48		—
Withheld shares on restricted share units for withholding taxes	—		—		(4,754)		—		—		—		(4,754)
Stock options exercised	—		2,392		—		—		—		—		2,392
Repurchases of common stock, with excise tax	—		—		(24,984)		—		—		—		(24,984)

Cash dividends paid ($0.65 per share)	—		—		—		—		(16,130)		—		(16,130)
Balance at June 29, 2024	$	262	$	1,032,974	$	(305,136)	$	(107,175)	$	1,844,204	$	358	$	2,465,487

See accompanying Notes to Condensed Consolidated Financial Statements.

Table of Contents

Notes to Condensed Consolidated Financial Statements

1. Summary of Significant Accounting Policies and Other Information

Nature of Operations

Founded in 1927, Littelfuse, Inc. ("Littelfuse" or the "Company") is a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 16,000 global associates, the Company partners with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, the Company’s products are found in a variety of industrial, transportation and electronics end markets – everywhere, every day.

Basis of Presentation

The Company’s accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with U.S. Generally Accepted Accounting Principles ("GAAP") for interim financial information, the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, certain information and disclosures normally included in the consolidated balance sheets, statements of net income and comprehensive income, statements of cash flows, and statements of stockholders' equity prepared in conformity with U.S. GAAP have been condensed or omitted as permitted by such rules and regulations, although the Company believes that the disclosures made are adequate to make the information not misleading. They have been prepared in accordance with accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 28, 2024, which should be read in conjunction with the disclosures therein. In the opinion of management, all adjustments considered necessary for a fair presentation have been included and are of a normal, recurring nature. Operating results for interim periods are not necessarily indicative of annual operating results.

Revenue Recognition

Revenue Disaggregation

The following tables disaggregate the Company’s revenue by primary business units for the three and six months ended June 28, 2025 and June 29, 2024:


	Three Months Ended June 28, 2025								Six Months Ended June 28, 2025
(in thousands)	Electronics Segment		Transportation Segment		Industrial Segment		Total		Electronics Segment		Transportation Segment		Industrial Segment		Total
Electronics – Semiconductor	$	166,967	$	—	$	—	$	166,967	$	325,256	$	—	$	—	$	325,256
Electronics – Passive Products and Sensors	168,699		—		—		168,699		317,659		—		—		317,659
Commercial Vehicle Products	—		86,260		—		86,260		—		164,029		—		164,029
Passenger Car Products	—		76,151		—		76,151		—		145,186		—		145,186
Automotive Sensors	—		16,989		—		16,989		—		32,047		—		32,047
Industrial Products	—		—		98,347		98,347		—		—		183,543		183,543
Total	$	335,666	$	179,400	$	98,347	$	613,413	$	642,915	$	341,262	$	183,543	$	1,167,720

Table of Contents


	Three Months Ended June 29, 2024								Six Months Ended June 29, 2024
(in thousands)	Electronics Segment		Transportation Segment		Industrial Segment		Total		Electronics Segment		Transportation Segment		Industrial Segment		Total
Electronics – Semiconductor	$	159,564	$	—	$	—	$	159,564	$	317,435	$	—	$	—	$	317,435
Electronics – Passive Products and Sensors	146,075		—		—		146,075		279,309		—		—		279,309
Commercial Vehicle Products	—		80,759		—		80,759		—		160,273		—		160,273
Passenger Car Products	—		69,036		—		69,036		—		139,298		—		139,298
Automotive Sensors	—		19,169		—		19,169		—		39,760		—		39,760
Industrial Products	—		—		83,886		83,886						157,799		157,799
Total	$	305,639	$	168,964	$	83,886	$	558,489	$	596,744	$	339,331	$	157,799	$	1,093,874

See Note 14, Segment Information, for net sales by segment and country.

Revenue Recognition

The Company recognizes revenue on product sales in the period in which the Company satisfies its performance obligation and control of the product is transferred to the customer. The Company’s sales arrangements with customers are predominately short term in nature and generally provide for transfer of control at the time of shipment as this is the point at which title and risk of loss of the product transfers to the customer. At the end of each period, for those shipments where title to the products and the risk of loss and rewards of ownership do not transfer until the product has been received by the customer, the Company adjusts revenues and cost of sales for the delay between the time that the products are shipped and when they are received by the customer. The amount of revenue recorded reflects the consideration to which the Company expects to be entitled in exchange for goods and may include adjustments for customer allowances, rebates and price adjustments. The Company’s distribution channels are primarily through direct sales and independent third-party distributors.

The Company has elected the practical expedient under Accounting Standards Codification ("ASC") 340-40-25-4 to expense commissions when incurred as the amortization period of the commission asset the Company would have otherwise recognized is less than one year.

Revenue and Billing

The Company generally accepts orders from customers through receipt of purchase orders or electronic data interchange based on written sales agreements and purchasing contracts. Contract pricing and selling agreement terms are based on market factors, costs, and competition. Pricing is often negotiated as an adjustment (premium or discount) from the Company’s published price lists. The customer is invoiced when the Company’s products are shipped to them in accordance with the terms of the sales agreement. As the Company’s standard payment terms are less than one year, the Company elected the practical expedient under ASC 606-10-32-18 to not assess whether a contract has a significant financing component. The Company also elected the practical expedient provided in ASC 606-10-25-18B to treat all product shipping and handling activities as fulfillment activities, and therefore recognize the gross revenue associated with the contract, inclusive of any shipping and handling revenue.

Ship and Debit Program

Some of the terms of the Company’s sales agreements and normal business conditions provide customers (distributors) the ability to receive price adjustments on products previously shipped and invoiced. This practice is common in the industry and is referred to as a “ship and debit” program. This program allows the distributors to debit the Company for the difference between the distributors’ contracted price and a lower price for specific transactions. Under certain circumstances (usually in a competitive situation or large volume opportunity), a distributor will request authorization for pricing allowances to reduce its price. When the Company approves such a reduction, the distributor is authorized to “debit” its account for the difference between the contracted price and the lower approved price. The Company establishes reserves for this program based on

Table of Contents

historical activity, distributor inventory levels and actual authorizations for the debit and recognizes these debits as a reduction of revenue.

Return to Stock

The Company has a return to stock policy whereby certain customers, with prior authorization from the Company's management, can return previously purchased goods for full or partial credit. The Company establishes an estimated allowance for these returns based on historical activity. Sales revenue and cost of sales are reduced to anticipate estimated returns.

Volume Rebates

The Company offers volume-based sales incentives to certain customers to encourage greater product sales. If customers achieve their specific quarterly or annual sales targets, they are entitled to rebates. The Company estimates the projected amount of rebates that will be achieved by the customer and recognizes this estimated cost as a reduction to revenue as products are sold.

Cash, Cash Equivalents, and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash at June 28, 2025 and December 28, 2024 reported within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Condensed Consolidated Statement of Cash Flows.


(in thousands)	June 28, 2025		December 28, 2024
Cash and cash equivalents	$	685,184	$	724,924

Restricted cash included in other long-term assets	1,699		1,513
Total cash, cash equivalents, and restricted cash	$	686,883	$	726,437

Recently Issued Accounting Standards

In November 2024, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Updates ("ASU") No. 2024-03, "Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40)." The amendments in this update require disclosure, in the notes to financial statements, of specified information about certain costs and expenses. The amendments require that at each interim and annual reporting period an entity (a) disclose the amounts of (i) purchases of inventory, (ii) employee compensation, (iii) depreciation, (iv) intangible asset amortization, and (v) depreciation, depletion, and amortization recognized as part of oil and gas producing activities ("DD&A") included in each relevant expense caption. A relevant expense caption is an expense caption presented on the face of the income statement within continuing operations that contains any of the expense categories listed in (i)-(v); (b) include certain amounts that are already required to be disclosed under current GAAP in the same disclosure as the other disaggregation requirements (c) disclose a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively (d) disclose the total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses. The guidance is effective for fiscal years beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, with early adoption permitted. The adoption of this guidance will increase the Company's disclosures in its Consolidated Financial Statements. The Company is currently evaluating the potential impact on the disclosures in the Company's Consolidated Financial Statements.

In December 2023, the FASB issued ASU No. 2023-09, "Income Taxes (Topic 740): Improvements to Income Tax Disclosures." The amendments in this update provide more transparency about income tax information through improvements to the income tax disclosure primarily related to the income tax rate reconciliation and income taxes paid information. These requirements include: (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) income taxes paid disaggregated by jurisdiction. The other amendments in this update improve the effectiveness and comparability of disclosures by (3) adding disclosures of pretax income (or loss) and income tax expense (or benefit), and (4) removing disclosures that are no longer considered cost beneficial or relevant. The guidance is effective for fiscal years beginning after December 15, 2024 with early adoption permitted. The adoption of this guidance will modify disclosures in the Company's Consolidated Financial Statements.

In October 2023, the FASB issued ASU No. 2023-06, "Disclosure Improvements." The amendments in this update represent changes to clarify or improve the disclosure or presentation requirements of a variety of Topics in the ASC. The Company may

Table of Contents

be affected by one or more of those amendments. The amendments in this ASU should be applied prospectively and will not be effective until June 30, 2027. The Company is currently evaluating the potential effects of these amendments on its Consolidated Financial Statements.

2. Acquisitions

The Company accounts for acquisitions using the acquisition method in accordance with ASC 805, “Business Combinations,” in which assets acquired and liabilities assumed are recorded at fair value as of the date of acquisition. The operating results of the acquired business are included in the Company’s Condensed Consolidated Financial Statements from the date of the acquisition.

Dortmund Fab

On December 31, 2024, the Company completed the acquisition of a 200mm wafer fab located in Dortmund, Germany (“Dortmund Fab”) from Elmos Semiconductor SE. The total purchase price for the Dortmund Fab is approximately €94 million, of which a €37.2 million down payment (approximately $40.5 million) was paid in the third quarter of 2023 after regulatory approvals, and €56.7 million (approximately $58.8 million) was paid at closing. The business is reported in the Electronics-Semiconductor business within the Company’s Electronics segment.

The acquisition was funded with cash on hand. The total purchase consideration of $95.9 million, net of cash acquired, has been allocated, on a preliminary basis, to assets acquired and liabilities assumed, as of the completion of the acquisition, based on estimated fair values. The purchase consideration is subject to change for the final working capital adjustments. The purchase price allocation is preliminary because the evaluations necessary to assess the fair values of the net assets acquired are still in process. The primary areas not yet finalized relate to the completion of the valuation of certain acquired income tax assets and liabilities and personal property. As a result, these allocations are subject to change during the purchase price allocation period as the valuations are finalized.

The following table summarizes the preliminary purchase price allocation of the fair value of assets acquired and liabilities assumed in the Dortmund Fab acquisition:


(in thousands)	Purchase Price Allocation
Total purchase consideration:
Cash, net of cash acquired	$	95,942
Allocation of consideration to assets acquired and liabilities assumed:
Trade receivables	5,985
Inventories	6,600
Other current assets	8,278
Property, plant, and equipment	30,132
Intangible assets	1,800
Goodwill	57,534
Other long-term assets	8,579
Current liabilities	(7,464)

Other long-term liabilities	(15,502)
	$	95,942

All Dortmund Fab assets and liabilities were recorded in the Electronics segment and are primarily reflected in the Europe geographic area. The goodwill resulting from this acquisition consists largely of the Company’s expected future product sales and synergies from combining Dortmund Fab’s products and technology with the Company’s existing semiconductor products portfolio. Goodwill resulting from the Dortmund Fab acquisition is expected to be deductible for tax purposes.

During the three months ended June 28, 2025, the Company recorded measurement period adjustments to decrease other current assets of $0.2 million and deferred tax liability of $0.1 million. As a result of these adjustments, goodwill was increased by $0.1 million accordingly. In addition, the Company made a reclassification adjustment of $0.8 million between current liabilities and other long-term liabilities. The total impact of the adjustment to Cost of sales was $0.2 million in the three months ended June 28, 2025.

Table of Contents

Included in the Company’s Condensed Consolidated Statements of Net Income for the three and six months ended June 28, 2025 were net sales of $13.4 million and $23.5 million, respectively, and loss before income taxes was $2.5 million and $2.4 million, respectively, since the December 31, 2024 acquisition of Dortmund Fab.

As required by purchase accounting guidance, the Company recorded a $0.5 million step-down of inventory to its fair value as of the acquisition date based on the preliminary valuation. The step-down was fully amortized as a non-cash credit to cost of sales during the first fiscal quarter of 2025 as the acquired inventory was sold and reflected as other non-segment costs.

During the six months ended June 29, 2024, the Company incurred approximately $0.1 million of legal and professional fees related to the Dortmund Fab acquisition recognized as Selling, general, and administrative expenses in the Condensed Consolidated Statements of Net Income. A total of $3.5 million of legal and professional fees related to the Dortmund Fab acquisition was recognized since 2023. These costs were reflected as other non-segment costs.

Pro Forma Results

The following table summarizes, on an unaudited pro forma basis, the combined results of operations of the Company and Dortmund Fab as though the acquisition had occurred as of December 31, 2023. The pro forma amounts presented are not necessarily indicative of either the actual consolidated results had the Dortmund Fab acquisition occurred as of December 31, 2023, or of future consolidated operating results.


	For the Three Months Ended				For the Six Months Ended
(in thousands, except per share amounts)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Net sales	$	613,413	$	570,489	$	1,167,720	$	1,117,390
Income before income taxes	78,214		62,323		137,620		119,333
Net income	57,342		46,272		100,534		95,637
Net income per share — basic	2.32		1.86		4.06		3.85
Net income per share — diluted	2.30		1.85		4.03		3.81

Pro forma results presented above primarily reflect the following adjustments:


	For the Three Months Ended				For the Six Months Ended
(in thousands)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Amortization of unfavorable production contract (a)	$	—	$	567	$	—	$	1,135
Amortization of inventory step-down (b)	—		—		(504)		510
Depreciation	—		(274)		—		(549)
Amortization (c)	—		(94)		—		(188)
Transaction costs (d)	—		16		(37)		(380)
Income tax (expense) benefit of above items	—		(65)		162		(158)

(a) The amortization of the unfavorable production contract during the three and six months ended June 29, 2024 results from the fair value assigned to the unfavorable production contract liability that is amortized over four years.

(b) The amortization of the inventory step-down adjustment reflects the reversal of the amount recognized during the six months ended June 28, 2025, and the recognition of the amortization during the six months ended June 29, 2024. The inventory step-down was fully amortized over two months as the inventory was sold.

(c) The amortization adjustment for the three and six months ended June 29, 2024 primarily reflects amortization resulting from the measurement of intangibles at their fair values.

(d) The transaction costs adjustment reflects certain legal and professional fees for the six months ended June 28, 2025 and three and six months ended June 29, 2024, respectively.

Table of Contents

3. Inventories

The components of inventories at June 28, 2025 and December 28, 2024 were as follows:


(in thousands)	June 28, 2025		December 28, 2024
Raw materials	$	186,682	$	193,788
Work in process	131,501		115,497
Finished goods	173,332		173,513
Inventory reserves	(79,351)		(66,525)
Total	$	412,164	$	416,273

4. Property, Plant, and Equipment, net

The components of net property, plant, and equipment at June 28, 2025 and December 28, 2024 were as follows:


(in thousands)	June 28, 2025		December 28, 2024
Land and land improvements	$	18,932	$	17,593
Building and building improvements	206,941		192,441
Machinery and equipment	960,156		892,940

Accumulated depreciation and amortization	(669,512)		(625,906)
Total	$	516,517	$	477,068

The Company recorded depreciation expense of $19.4 million and $17.1 million for the three months ended June 28, 2025 and June 29, 2024, respectively, and $37.8 million and $33.7 million for the six months ended June 28, 2025 and June 29, 2024, respectively, in Cost of sales, Selling, general, and administrative expenses, and Research and development expenses in the Condensed Consolidated Statements of Net Income.

5. Goodwill and Other Intangible Assets

The amounts for goodwill and changes in the carrying value of goodwill by segment for the six months ended June 28, 2025 were as follows:


(in thousands)	Electronics		Transportation		Industrial		Total
Net goodwill as of December 28, 2024
Gross goodwill as of December 28, 2024	$	906,871	$	233,286	$	173,882	$	1,314,039
Accumulated impairment losses as of December 28, 2024	—		(41,645)		(43,892)		(85,537)
Total	906,871		191,641		129,990		1,228,502
Changes during 2025:
Additions (a)	57,534		—		—		57,534

Foreign currency translation adjustments	60,344		6,206		6,836		73,386
Net goodwill as of June 28, 2025
Gross goodwill as of June 28, 2025	1,024,749		242,438		185,578		1,452,765
Accumulated impairment losses as of June 28, 2025	—		(44,591)		(48,752)		(93,343)
Total	$	1,024,749	$	197,847	$	136,826	$	1,359,422

(a) The additions resulted from the acquisition of Dortmund Fab.

Table of Contents

The components of intangible assets as of June 28, 2025 and December 28, 2024 were as follows:


	As of June 28, 2025
(in thousands)	Gross Carrying Value		Accumulated Amortization		Net Book Value
Land use rights	$	16,378	$	3,298	$	13,080
Patents, licenses, and software	275,154		200,842		74,312
Distribution network	42,342		42,342		—
Customer relationships, trademarks, and tradenames	658,608		271,823		386,785

Total	$	992,482	$	518,305	$	474,177


	As of December 28, 2024
(in thousands)	Gross Carrying Value		Accumulated Amortization		Net Book Value
Land use rights	$	16,079	$	2,994	$	13,085
Patents, licenses, and software	260,096		180,674		79,422
Distribution network	41,667		41,667		—
Customer relationships, trademarks, and tradenames	632,572		242,961		389,611
Total	$	950,414	$	468,296	$	482,118

During the three months ended June 28, 2025 and June 29, 2024, the Company recorded amortization expense of $14.9 million and $15.7 million, respectively. During the six months ended June 28, 2025 and June 29, 2024, the Company recorded amortization expense of $29.2 million and $31.6 million, respectively.

During the six months ended June 28, 2025, the Company recorded additions to intangible assets of $1.8 million related to the Dortmund Fab acquisition, the components of which were as follows:


(in thousands)	Weighted Average Useful Life	Amount
Customer relationships, trademarks, and tradenames	5	$	1,800
Total		$	1,800

Estimated annual amortization expense related to intangible assets with definite lives as of June 28, 2025 was as follows:


(in thousands)	Amount
Remainder of 2025	$	30,022
2026	48,788
2027	46,611
2028	46,208
2029	45,798
2030 and thereafter	256,750
Total	$	474,177

Table of Contents

6. Accrued Liabilities

The components of accrued liabilities as of June 28, 2025 and December 28, 2024 were as follows:


(in thousands)	June 28, 2025		December 28, 2024
Employee-related liabilities	$	77,625	$	67,639
Current lease liability	10,981		13,900
Other non-income taxes	7,736		7,022
Interest	7,391		8,131
Professional services	5,138		6,613
Restructuring liability	4,707		4,624
Other customer reserves	3,666		3,450
Deferred revenue	3,005		1,557
Current benefit liability	1,514		1,514
Current hedge liability	36		4,067
Other	32,732		29,759
Total	$	154,531	$	148,276

Employee-related liabilities consist primarily of payroll, sales commissions, bonus, employee benefit accruals and workers’ compensation. Bonus accruals include amounts earned pursuant to the Company’s primary employee incentive compensation plans. Other accrued liabilities include miscellaneous operating accruals and other customer-related liabilities.

7. Restructuring, Impairment, and Other Charges

The Company recorded restructuring, impairment, and other charges for the three and six months ended June 28, 2025 and June 29, 2024 as follows:


	Three Months Ended June 28, 2025								Six Months Ended June 28, 2025
(in thousands)	Electronics		Transportation		Industrial		Total		Electronics		Transportation		Industrial		Total
Employee terminations	$	1,100	$	1,350	$	24	$	2,474	$	5,904	$	4,482	$	436	$	10,822
Other restructuring charges	7		25		—		32		518		48		1		567
Total restructuring charges	1,107		1,375		24		2,506		6,422		4,530		437		11,389
Impairment	—		—		—		—		136		—		—		136

Total	$	1,107	$	1,375	$	24	$	2,506	$	6,558	$	4,530	$	437	$	11,525


	Three Months Ended June 29, 2024								Six Months Ended June 29, 2024
(in thousands)	Electronics		Transportation		Industrial		Total		Electronics		Transportation		Industrial		Total
Employee terminations	$	4,501	$	437	$	5	$	4,943	$	5,105	$	1,591	$	416	$	7,112
Other restructuring charges	87		209		13		309		139		287		18		444
Total restructuring charges	4,588		646		18		5,252		5,244		1,878		434		7,556
Impairment	—		—		—		—		—		933		—		933

Total	$	4,588	$	646	$	18	$	5,252	$	5,244	$	2,811	$	434	$	8,489

Table of Contents

2025

For the three and six months ended June 28, 2025, the Company recorded total restructuring charges of $2.5 million and $11.4 million, respectively, primarily for employee termination costs. These charges primarily related to the reorganization of certain manufacturing, selling and corporate support functions across all businesses within the Transportation segment and for the semiconductor business within the Electronics segment. In addition, during the first fiscal quarter of 2025, the Company recognized a $0.1 million impairment charge related to certain machinery and equipment within the Electronics segment.

2024

For the three and six months ended June 29, 2024, the Company recorded total restructuring charges of $5.3 million and $7.6 million, respectively, primarily for employee termination costs. These charges primarily related to the reorganization of certain manufacturing, selling and administrative functions within the semiconductor business in the Electronics segment and the reorganization of certain selling and administrative functions within the commercial vehicle business in the Transportation segment. In addition, during the first fiscal quarter of 2024, the Company recognized a $0.9 million impairment charge related to certain machinery and equipment in the commercial vehicle business within the Transportation segment.

The restructuring reserves as of June 28, 2025 and December 28, 2024 were $5.0 million and $4.6 million, respectively. The restructuring liability as of June 28, 2025 was $4.7 million included within Accrued liabilities and $0.3 million within Other long-term liabilities in the Condensed Consolidated Balance Sheets. The Company anticipates the remaining payments associated with employee terminations will primarily be completed during fiscal year 2025.

8. Debt

The carrying amounts of debt at June 28, 2025 and December 28, 2024 were as follows:


(in thousands)	June 28, 2025		December 28, 2024
Revolving credit facility	$	100,000	$	100,000
Term loan	273,750		281,250

Euro Senior Notes, Series B due 2028	111,079		98,928

U.S. Senior Notes, Series A due 2025	—		50,000
U.S. Senior Notes, Series B due 2027	100,000		100,000
U.S. Senior Notes, Series B due 2030	125,000		125,000
U.S. Senior Notes, due 2032	100,000		100,000
Other	2,692		3,702
Unamortized debt issuance costs	(2,305)		(2,766)
Total debt	810,216		856,114
Less: Current maturities	(17,692)		(67,612)
Total long-term debt	$	792,524	$	788,502

Revolving Credit Facility and Term Loan

On June 30, 2022, the Company amended and restated its Credit Agreement, dated as of April 3, 2020 (the “Credit Agreement”) to effect certain changes, including, among other changes: (i) adding a $300 million unsecured term loan credit facility; (ii) making certain financial and non-financial covenants less restrictive on the Company and its subsidiaries; (iii) replacing LIBOR-based interest rate benchmarks and modifying performance-based interest rate margins; and (iv) extending the maturity date to June 30, 2027 (the “Maturity Date”). Pursuant to the Credit Agreement, the Company may, from time to time, increase the size of the revolving credit facility or enter into one or more tranches of term loans in minimum increments of $25 million if there is no event of default and the Company is in compliance with certain financial covenants.

Loans made under the available credit facility pursuant to the Credit Agreement ("the Credit Facility") bear interest at the Company’s option, at either Secured Overnight Financing Rate ("SOFR"), fixed for interest periods of one, two, three or six-month periods, plus 1.00% to 1.75%, plus a SOFR adjustment of 0.10% or at the bank’s Base Rate, as defined in the Credit Agreement, plus 0.00% to 0.75%, based upon the Company’s Consolidated Leverage Ratio, as defined in the Credit Agreement. The Company is also required to pay commitment fees on unused portions of the Credit Facility ranging from 0.10% to 0.175%, based on the Consolidated Leverage Ratio, as defined in the Credit Agreement. The Credit Agreement includes representations, covenants and events of default that are customary for financing transactions of this nature.

Table of Contents

Under the Credit Agreement, revolving loans may be borrowed, repaid and reborrowed until the Maturity Date, at which time all amounts borrowed must be repaid. The Company borrowed $300.0 million under a term loan on June 30, 2022. The principal balance of the term loans must be repaid in quarterly installments on the last day of each calendar quarter in the amount of $1.9 million commencing September 30, 2022, through June 30, 2024, and in the amount of $3.8 million commencing September 30, 2024, through March 31, 2027, with the remaining outstanding principal balance payable in full on the Maturity Date. Accrued interest on the loans is payable in arrears on each interest payment date applicable thereto and at such other times as may be specified in the Credit Agreement. Subject to certain conditions, (i) the Company may terminate or reduce the Aggregate Revolving Commitments, as defined in the Credit Agreement, in whole or in part, and (ii) the Company may prepay the revolving loans or the term loans at any time, without premium or penalty. During the three and six months ended June 28, 2025, the Company made term loan payments of $3.8 million and $7.5 million, respectively. The revolving loan and term loan balances under the Credit Facility were $100.0 million and $273.8 million, respectively, as of June 28, 2025.

As of June 28, 2025, the effective interest rate on the unhedged portion of the outstanding borrowings under the credit facility was 5.68%, and 4.13% on the hedged portion.

As of June 28, 2025, the Company had $0.1 million outstanding letters of credit and had $599.9 million of borrowing capacity available under the revolving credit facility. As of June 28, 2025, the Company was in compliance with all covenants under the Credit Agreement.

Senior Notes

On December 8, 2016, the Company entered into a Note Purchase Agreement, pursuant to which the Company issued and sold €212 million aggregate principal amount of senior notes in two series. The funding date for the Euro denominated senior notes occurred on December 8, 2016 for €117 million in aggregate amount of 1.14% Senior Notes, Series A, due December 8, 2023 (“Euro Senior Notes, Series A due 2023”), and €95 million in aggregate amount of 1.83% Senior Notes, Series B due December 8, 2028 (“Euro Senior Notes, Series B due 2028”) (together, the “Euro Senior Notes”). During the fiscal year ended December 30, 2023, the Company paid off €117 million of Euro Senior Notes, Series A due on December 8, 2023. Interest on the Euro Senior Notes due 2028 is payable semiannually on June 8 and December 8, commencing June 8, 2017.

On December 8, 2016, the Company entered into a Note Purchase Agreement, pursuant to which the Company issued and sold $125 million aggregate principal amount of senior notes in two series. On February 15, 2017, $25 million in aggregate principal amount of 3.03% Senior Notes, Series A, due February 15, 2022 (“U.S. Senior Notes, Series A due 2022”), and $100 million in aggregate principal amount of 3.74% Senior Notes, Series B, due February 15, 2027 (“U.S. Senior Notes, Series B due 2027”) were funded. During the fiscal year ended December 31, 2022, the Company paid off $25 million of U.S. Senior Notes, Series A due on February 15, 2022. Interest on the U.S. Senior Notes due 2027 is payable semiannually on February 15 and August 15, commencing August 15, 2017.

On November 15, 2017, the Company entered into a Note Purchase Agreement pursuant to which the Company issued and sold $175 million in aggregate principal amount of senior notes in two series. On January 16, 2018, $50 million aggregate principal amount of 3.48% Senior Notes, Series A, due February 15, 2025 (“U.S. Senior Notes, Series A due 2025”) and $125 million in aggregate principal amount of 3.78% Senior Notes, Series B, due February 15, 2030 (“U.S. Senior Notes, Series B due 2030”) (together, the “U.S. Senior Notes due 2025 and 2030”) were funded. During the first fiscal quarter of 2025, the Company paid off $50 million of U.S. Senior Notes, Series A, due February 15, 2025. Interest on the U.S. Senior Notes, series B due 2030 is payable semiannually on February 15 and August 15, commencing on August 15, 2018.

On May 18, 2022, the above note purchase agreements were amended to, among other things, update certain terms, including financial covenants to be consistent with the terms of the restated Credit Agreement and the 2022 Purchase Agreement, as defined below.

On May 18, 2022, the Company entered into a Note Purchase Agreement (“2022 Purchase Agreement”) pursuant to which the Company issued and funded on July 18, 2022 $100 million in aggregate principal amount of 4.33% Senior Notes, due June 30, 2032 (“U.S. Senior Notes due 2032”) (together with the U.S. Senior Notes due 2025 and 2030, the Euro Senior Notes and the U.S. Senior Notes due 2022 and 2027, the “Senior Notes”). Interest on the U.S. Senior Notes due 2032 is payable semiannually on June 30 and December 30, commencing on December 30, 2022.

Table of Contents

The Senior Notes have not been registered under the Securities Act of 1933 ("Securities Act"), or applicable state securities laws. The Senior Notes are general unsecured senior obligations and rank equal in right of payment with all existing and future unsecured unsubordinated indebtedness of the Company.

The Senior Notes are subject to certain customary covenants, including limitations on the Company’s ability, with certain exceptions, to engage in mergers, consolidations, asset sales and transactions with affiliates, to engage in any business that would substantially change the general business of the Company, and to incur liens. In addition, the Company is required to satisfy certain financial covenants and tests relating to, among other matters, interest coverage and leverage. As of June 28, 2025, the Company was in compliance with all covenants under the Senior Notes.

The Company may redeem the Senior Notes upon the satisfaction of certain conditions and the payment of a make-whole amount to note holders and is required to offer to repurchase the Senior Notes at par following certain events, including a change of control.

Interest paid on all Company debt was $5.6 million and $6.4 million for the three months ended June 28, 2025 and June 29, 2024, respectively, and $17.8 million and $19.6 million for the six months ended June 28, 2025 and June 29, 2024, respectively, which included cash settlements received from the interest rate swap entered on May 12, 2022.

9. Fair Value of Assets and Liabilities

For assets and liabilities measured at fair value on a recurring and nonrecurring basis, a three-level hierarchy of measurements based upon observable and unobservable inputs is used to arrive at fair value. Observable inputs are developed based on market data obtained from independent sources, while unobservable inputs reflect the Company’s assumptions about valuation based on the best information available in the circumstances. Depending on the inputs, the Company classifies each fair value measurement as follows:

Level 1—Valuations based on unadjusted quoted prices for identical assets or liabilities in active markets;

Level 2—Valuations based upon quoted prices for similar instruments, prices for identical or similar instruments in markets that are not active, or model-derived valuations, all of whose significant inputs are observable; and

Level 3—Valuations based upon one or more significant unobservable inputs.

There were no transfers in or out of Level 1, Level 2 or Level 3 during the period.

Following is a description of the valuation methodologies used for instruments measured at fair value and their classification in the valuation hierarchy.

Cash Equivalents

Cash equivalents primarily consist of money market funds, certificates of deposit, and short-term time deposits, which are held with institutions with sound credit ratings and are highly liquid. The Company classified cash equivalents as Level 1 and were valued at cost which approximates fair value.

Investments in Equity Securities

Investments in equity securities listed on a national market or exchange are valued at the last sales price and classified within Level 1 of the valuation hierarchy and recorded in Investments and Other long-term assets.

Derivatives Designated as Hedging Instruments

For derivatives that will be accounted for as hedging instruments, the Company formally designates and documents, at inception, the financial instrument as a hedge of a specific underlying exposure, the risk management objective and the strategy for undertaking the hedge transaction. In addition, the Company formally assesses, both at the inception and at least quarterly thereafter, whether the financial instruments used in hedging transactions are effective at offsetting changes in either the fair values or cash flows of the related underlying exposures. For highly effective cash flow hedges, ASC 815 requires the entire change in fair value of the hedging instrument included in the assessment of hedge effectiveness to be recorded in other comprehensive income. No components of the Company's hedging instruments were excluded from the assessment of hedge effectiveness.

Table of Contents

Zero Cost Collar Agreement

In July 2024, the Company implemented a hedging program to manage foreign currency risk exposure related to fluctuations between the U.S. dollar and Mexican peso. These foreign currency zero cost collars are designated as cash flow hedges for a portion of our Mexican peso-denominated manufacturing expenses, predominantly salary expenses, vendor payments, and utility expenses. If the spot rate is between the weighted-average ceiling and floor rates on the date of maturity, then the Company would not owe or receive any payments under these collars. The Company plans to continue executing zero cost collars with 14-month rolling maturities as an ongoing strategy to hedge peso-denominated manufacturing expenses. The trade entry date, maturity date, weighted-average floor, and weighted-average ceiling for each collar trade was as follows:


Trade Entry Date	Trade Maturity Date	Weighted-Average Floor	Weighted-Average Ceiling
July 3, 2024	August 29, 2025	18.0000	19.4350
August 5, 2024	September 29, 2025	19.6550	21.0000
September 3, 2024	November 3, 2025	20.0820	21.7571
September 30, 2024	November 26, 2025	19.8700	21.3650
November 4, 2024	January 2, 2026	20.1200	21.6900
December 3, 2024	February 2, 2026	20.4250	22.0377
January 2, 2025	March 2, 2026	20.8000	21.9082
February 6, 2025	March 30, 2026	20.5300	22.0000
April 9, 2025	June 1, 2026	20.9700	22.2355
May 1, 2025	June 29, 2026	19.6940	20.9700
June 4, 2025	August 3, 2026	19.3100	20.3437

The fair value of the collars was determined using an independent third-party valuation model. Pursuant to this model, changes in fair value of derivatives that are designated as cash flow hedges are deferred in accumulated other comprehensive loss until the underlying transactions are recognized in earnings. For the three and six months ended June 28, 2025, the Company recorded pre-tax unrealized gains on the collars of $7.0 million and $9.4 million, respectively. As of June 28, 2025, the Company estimates that approximately $5.8 million of pre-tax gain recorded in accumulated other comprehensive loss will be recognized in earnings over the next 12 months. The amounts included in accumulated other comprehensive income will be reclassified to earnings should the hedge no longer be considered effective. No amount of ineffectiveness was included in net income for the three and six months ended June 28, 2025. The Company will continue to assess the effectiveness of the hedge on an ongoing basis. The primary inputs into the valuation of the collars are interest yield curves, interest rate volatilities, foreign exchange rates, foreign exchange volatilities, credit risk, credit spreads and other market information. The collars are classified within Level 2 of the fair value hierarchy since all significant inputs are corroborated by market observable data.

Interest Rate Swap

On May 12, 2022, the Company entered into an interest rate swap agreement to manage interest rate risk exposure, effectively converting the interest rate on the Company's SOFR based floating-rate loans to a fixed-rate. The interest rate swap, with a notional value of $200 million, was designated as a cash flow hedge against the variability of cash flows associated with the Company's SOFR based loans scheduled to mature on June 30, 2027. The fair value of the interest rate swap was valued using an independent third-party valuation model. Pursuant to this model, changes in fair value of derivatives that are designated as cash flow hedges are deferred in accumulated other comprehensive loss until the underlying transactions are recognized in earnings. For the three and six months ended June 28, 2025, the Company recorded a pre-tax unrealized loss on the interest rate swap of $1.1 million and $3.4 million, respectively. As of June 28, 2025, the Company estimates that approximately $2.1 million of pre-tax gain recorded in accumulated other comprehensive loss will be recognized in earnings over the next 12 months. The primary inputs into the valuation of the interest rate swap are interest yield curves, interest rate volatility, credit risk, credit spreads and other market information. The interest rate swap is classified within Level 2 of the fair value hierarchy since all significant inputs are corroborated by market observable data.

The use of derivatives creates exposure to credit risk relating to potential losses that could be recognized in the event that the counterparties to these instruments fail to perform their obligations under the contracts. The Company seeks to minimize this risk by limiting its counterparties to major financial institutions with acceptable credit ratings and monitoring the total value of positions with individual counterparties. In the event of a default by one of its counterparties, the Company may not receive payments provided for under the terms of its derivatives.

The Company does not enter into derivative financial instruments for trading purposes.

Table of Contents

As of June 28, 2025 and December 28, 2024, the fair values of the Company's derivative financial instruments and their classifications on the Condensed Consolidated Balance Sheets were as follows:


(in thousands)	Condensed Consolidated Balance Sheets Classification	June 28, 2025		December 28, 2024
Derivatives designated as hedging instruments
Interest rate swap agreement:
Designated as cash flow hedge	Prepaid expenses and other current assets	$	1,990	$	2,482
	Other long-term assets	759		3,716
Zero cost collar agreement:
Designated as cash flow hedge	Prepaid expenses and other current assets	$	5,376	$	22
	Other long-term assets	1		—
	Accrued liabilities	36		4,067
	Other long-term liabilities	—		2

The pre-tax (gains) losses recognized on derivative financial instruments in the Condensed Consolidated Statements of Net Income for the three and six months ended June 28, 2025 and June 29, 2024 were as follows:


		Three Months Ended				Six Months Ended
(in thousands)	Classification of (Gains) Losses Recognized in the Condensed Consolidated Statements of Net Income	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Derivatives designated as cash flow hedges
Interest rate swap agreement	Interest expense	$	(782)	$	(1,288)	$	(1,571)	$	(2,568)
Zero cost collar agreement	Cost of sales	(119)		—		1,360		—
Zero cost collar agreement	Selling, general, and administrative expenses	—		—		121		—

The pre-tax losses (gains) recognized on derivative financial instruments in the Condensed Consolidated Statements of Comprehensive Income for the three and six months ended June 28, 2025 and June 29, 2024 were as follows:


	Three Months Ended				Six Months Ended
(in thousands)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Derivatives designated as cash flow hedges
Interest rate swap agreement	$	1,131	$	23	$	3,449	$	(2,511)
Zero cost collar agreement	(6,970)		—		(9,412)		—

Mutual Funds

The Company has a non-qualified Supplemental Retirement and Savings Plan which provides additional retirement benefits for certain management employees and named executive officers by allowing participants to defer a portion of their annual compensation. The Company maintains accounts for participants through which participants make investment elections. The marketable securities are classified as Level 1 under the fair value hierarchy as they are maintained in mutual funds with readily determinable fair value and recorded in Other long-term assets in the Condensed Consolidated Balance Sheets.

There were no changes during the quarter ended June 28, 2025 to the Company’s valuation techniques used to measure asset and liability fair values on a recurring basis. As of June 28, 2025 and December 28, 2024, the Company did not hold any non-financial assets or liabilities that are required to be measured at fair value on a recurring basis.

Table of Contents

The following table presents assets measured at fair value by classification within the fair value hierarchy as of June 28, 2025:


	Fair Value Measurements Using
(in thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Cash equivalents	$	579,626	$	—	$	—	$	579,626
Investments in equity securities	9,249		—		—		9,249
Mutual funds	24,328		—		—		24,328
Total	$	613,203	$	—	$	—	$	613,203

The following table presents assets measured at fair value by classification within the fair value hierarchy as of December 28, 2024:


	Fair Value Measurements Using
(in thousands)	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Cash equivalents	$	658,491	$	—	$	—	$	658,491
Investments in equity securities	10,182		—		—		10,182
Mutual funds	23,268		—		—		23,268
Total	$	691,941	$	—	$	—	$	691,941

In addition to the methods and assumptions used for the financial instruments recorded at fair value as discussed above, the following methods and assumptions are used to estimate the fair value of other financial instruments that are not marked to market on a recurring basis. The Company’s other financial instruments include cash and cash equivalents, short-term investments, accounts receivable and its long-term debt. Due to their short-term maturity, the carrying amounts of cash and cash equivalents, short-term investments and accounts receivable approximate their fair values. The Company’s revolving and term loan debt facilities' fair values approximate book value at June 28, 2025 and December 28, 2024, as the rates on these borrowings are variable in nature. The purchase price of business acquisitions is primarily allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values on the acquisition date, with the excess recorded as goodwill. The Company utilizes Level 3 inputs in the determination of the initial fair value for certain assets acquired and liabilities assumed in business acquisitions.

The carrying value and estimated fair values of the Company’s Euro Senior Notes, Series B and USD Senior Notes, Series A and Series B, as of June 28, 2025 and December 28, 2024 were as follows:


	June 28, 2025				December 28, 2024
(in thousands)	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value

Euro Senior Notes, Series B due 2028	$	111,079	$	104,398	$	98,928	$	91,741

USD Senior Notes, Series A due 2025	—		—		50,000		49,919
USD Senior Notes, Series B due 2027	100,000		98,121		100,000		96,623
USD Senior Notes, Series B due 2030	125,000		118,391		125,000		114,786
USD Senior Notes, due 2032	100,000		94,159		100,000		91,175

Table of Contents

10. Benefit Plans

The Company has Company-sponsored and mandatory defined benefit pension plans covering employees in the United Kingdom ("U.K."), Germany, the Philippines, China, Japan, Mexico, Italy and France. The amount of the retirement benefits provided under the plans is generally based on years of service and final average pay.

The Company recognizes interest cost, expected return on plan assets, and amortization of prior service, net within Other income, net in the Condensed Consolidated Statements of Net Income. The components of net periodic benefit cost for the three and six months ended June 28, 2025 and June 29, 2024 were as follows:


	For the Three Months Ended				For the Six Months Ended
(in thousands)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Components of net periodic benefit cost:
Service cost	$	758	$	770	$	1,485	$	1,565
Interest cost	1,003		975		1,957		1,970
Expected return on plan assets	(481)		(510)		(940)		(1,028)
Amortization of prior service and net actuarial loss	102		46		171		92
Net periodic benefit cost	$	1,382	$	1,281	$	2,673	$	2,599

The Company expects to make approximately $1.2 million of contributions to the plans and pay $2.1 million of benefits directly in 2025.

On October 4, 2024, the Company entered into a definitive agreement to purchase a group annuity contract, under which an insurance company is required to pay pension payments to the Company’s United Kingdom pension plan to match required pension payments until a later buyout, at which point the insurance company will directly pay and administer the benefits to the plan's participants, or to their designated beneficiaries. The purchase of this group annuity contract will reduce the Company’s outstanding pension benefit obligation by approximately $23 million, representing approximately 33% of the total obligations of the Company’s qualified pension plans, and will be funded with pension plan assets and additional cash on hand. In connection with this transaction, the Company currently expects to record a one-time non-cash settlement charge in 2026 estimated between $6 million and $8 million, reflecting the accelerated recognition of a portion of unamortized actuarial losses in the plan. The actual settlement charge could differ from this estimate due to final data and plan wind-up expenses.

The Company also sponsors certain post-employment plans in foreign countries and other statutory benefit plans. The Company recorded expense of $0.7 million for each of the three months ended June 28, 2025 and June 29, 2024, respectively, and $1.4 million for each of the six months ended June 28, 2025 and June 29, 2024, respectively, in Cost of sales and Other income, net within the Condensed Consolidated Statements of Net Income. The pre-tax losses amount recognized in other comprehensive income (loss) for these plans were $0.4 million and $0.3 million for the three months ended June 28, 2025 and June 29, 2024, respectively, and $0.7 million and $0.6 million for the six months ended June 28, 2025 and June 29, 2024, respectively.

Table of Contents

11. Other Comprehensive Income (Loss)

Changes in other comprehensive income (loss) by component were as follows:


(in thousands)	Three Months Ended June 28, 2025						Three Months Ended June 29, 2024
	Pre-tax		Tax		Net of Tax		Pre-tax		Tax		Net of Tax
Defined benefit pension plan and other adjustments	$	151	$	33	$	184	$	336	$	(10)	$	326
Cash flow hedges	5,839		(9)		5,830		(23)		5		(18)
Foreign currency translation adjustments (a)	94,433		(2,534)		91,899		(21,542)		167		(21,375)
Total change in other comprehensive income (loss)	$	100,423	$	(2,510)	$	97,913	$	(21,229)	$	162	$	(21,067)

(in thousands)	Six Months Ended June 28, 2025						Six Months Ended June 29, 2024
	Pre-tax		Tax		Net of Tax		Pre-tax		Tax		Net of Tax
Defined benefit pension plan and other adjustments	$	378	$	25	$	403	$	696	$	(26)	$	670
Cash flow hedges	5,963		455		6,418		2,511		(603)		1,908
Foreign currency translation adjustments (a)	132,101		(3,412)		128,689		(54,712)		776		(53,936)
Total change in other comprehensive income (loss)	$	138,442	$	(2,932)	$	135,510	$	(51,505)	$	147	$	(51,358)

(a) The tax shown above within foreign currency translation adjustments is the U.S. tax associated with the foreign currency translation adjustments of earnings of non-U.S. subsidiaries which have been previously taxed in the U.S. and are not permanently reinvested.

The following tables set forth the changes in the components of accumulated other comprehensive income (loss) by component for the six months ended June 28, 2025 and June 29, 2024:


(in thousands)	Pension and postretirement liability and reclassification adjustments		Cash flow hedges		Foreign currency translation adjustments		Accumulated other comprehensive (loss) income
Balance at December 28, 2024	$	(10,509)	$	1,301	$	(137,153)	$	(146,361)

Activity in the period	403		6,418		128,689		135,510
Balance at June 28, 2025	$	(10,106)	$	7,719	$	(8,464)	$	(10,851)


(in thousands)	Pension and postretirement liability and reclassification adjustments		Cash flow hedges		Foreign currency translation adjustments		Accumulated other comprehensive loss
Balance at December 30, 2023	$	(7,613)	$	4,448	$	(52,652)	$	(55,817)

Activity in the period	670		1,908		(53,936)		(51,358)
Balance at June 29, 2024	$	(6,943)	$	6,356	$	(106,588)	$	(107,175)

Amounts reclassified from accumulated other comprehensive income (loss) to earnings for the three and six months ended June 28, 2025 and June 29, 2024 were as follows:


	Three Months Ended				Six Months Ended
(in thousands)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Pension and postemployment plans:
Amortization of prior service and net actuarial loss, and other	$	470	$	347	$	891	$	703

Table of Contents

The Company recognizes the amortization of prior service costs in Other income, net within the Condensed Consolidated Statements of Net Income.

12. Income Taxes

The effective tax rate for the three and six months ended June 28, 2025 was 26.7% and 27.0%, respectively, compared to the effective tax rate for the three and six months ended June 29, 2024 of 25.6% and 19.6%, respectively. The effective tax rate for 2025 was higher than the effective tax rate for the comparable 2024 periods primarily due to increases in foreign exchange losses and losses in non-U.S. jurisdictions with no related tax benefit, as compared to 2024. The 2024 periods also recognized more favorable tax rate benefits due to lapses in the statute of limitations for previously unrecognized tax benefits, as compared to the 2025 periods.

The effective tax rates for three and six months ended June 28, 2025 were higher than the statutory tax rate primarily due to foreign exchange losses and losses in non-U.S. jurisdictions with no related tax benefit. The effective tax rate for the three months ended June 29, 2024 was higher than the statutory tax rate primarily due to the proportion of pre-tax income that is earned in higher tax jurisdictions. The effective tax rate for the six months ended June 29, 2024 was lower than the statutory tax rate primarily due to the lapse in the statute of limitations for previously unrecognized tax benefits recognized in the first quarter.

On July 4, 2025, the United States has enacted into law the legislation formally titled “An Act to provide for reconciliation pursuant to title II of H. Con. Res. 14”, and commonly referred to as the One Big Beautiful Bill Act (“OBBB”). The OBBB contains multiple business tax provisions, including the permanent extension of several expiring provisions of the Tax Cuts and Jobs Act and multiple modifications to the international tax framework, for which the Company is currently evaluating the impact on its Condensed Consolidated Financial Statements. The legislation has multiple effective dates with certain provisions soon to be effective in 2025 and others to be implemented in future years, and the Company will continue to monitor future administrative guidance and regulations that clarify the legislative text of the OBBB and the bill’s potential effect on the Company’s income taxes.

13. Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share:


	Three Months Ended				Six Months Ended
(in thousands, except per share amounts)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Numerator:
Net income as reported	$	57,342	$	45,466	$	100,913	$	93,918

Denominator:
Weighted average shares outstanding
Basic	24,755		24,822		24,760		24,867
Effect of dilutive securities	150		208		178		208
Diluted	24,905		25,030		24,938		25,075

Earnings Per Share:
Basic earnings per share	$	2.32	$	1.83	$	4.08	$	3.78
Diluted earnings per share	$	2.30	$	1.82	$	4.05	$	3.75

Potential shares of common stock attributable to performance share units, stock options and restricted stock units excluded from the earnings per share calculation because their effect would be anti-dilutive were 429,709 and 141,729 for the three months ended June 28, 2025 and June 29, 2024, respectively, and 347,711 and 129,096 for the six months ended June 28, 2025 and June 29, 2024, respectively.

Share Repurchase Program

Table of Contents

On April 25, 2024, the Company's Board of Directors authorized a three-year program to repurchase up to $300.0 million in the aggregate of shares of the Company's stock for the period from May 1, 2024 to April 30, 2027 ("2024 program") to replace its previous 2021 program. The Company did not repurchase any shares of its common stock for the three months ended June 28, 2025. During the six months ended June 28, 2025, the Company repurchased 120,689 shares of its common stock totaling $27.4 million pursuant to the 2024 program. During the three and six months ended June 29, 2024, the Company repurchased 109,031 and 179,311 shares of its common stock totaling $24.7 million and $40.9 million, respectively, of which $38.9 million was pursuant to the 2021 program and $2.0 million was pursuant to the 2024 program.

14. Segment Information

The Company and its subsidiaries design, manufacture and sell component, modules and subassemblies to empower the long-term structural themes of sustainability, connectivity and safety. The Company aggregated its operating segments into the reportable segments: Electronics, Transportation, and Industrial. An operating segment is defined as a component of an enterprise that engages in business activities from which it may earn revenues and incur expenses, and about which separate financial information is regularly evaluated by the Chief Operating Decision Maker (“CODM”) in deciding how to allocate resources. The CODM is the Company’s President and Chief Executive Officer (“CEO”). The CODM allocates resources to and assesses the performance of each operating segment using information about its revenue and operating income (loss) before interest and taxes, but does not evaluate the operating segments using discrete balance sheet information and as such, segment asset information is not disclosed. The CODM’s key decisions involve the allocation of resources, such as acquisitions, divestitures, investments, capital expenditures, significant customer contracts, and other key management resources, and assessment of performance, such as executive officer hiring, promotion, and compensation. The CODM uses operating income as the key metric when establishing targets in the annual budget and in evaluating the allocation of resources to each segment. The CODM regularly reviews each segment's operating income against the forecast, budget and previous quarterly results to assess performance and make decisions about the allocation of operating and capital resources to each segment.

Sales, marketing, and research and development expenses are charged directly into each operating segment. Finance, information technology, and human resources are shared functions that are allocated back to the operating segments. The Company does not report inter-segment revenue because the operating segments do not record it. Certain expenses, determined by the CODM to be strategic in nature and not directly related to segments current results, are not allocated but identified as “Other.” Additionally, the Company does not allocate interest and other income, interest expense, or taxes to operating segments. These costs are not allocated to the segments, as management excludes such costs when assessing the performance of the segments. Except as discussed above, the accounting policies for segment reporting are the same as for the Company as a whole.

•Electronics Segment: Consists of one of the broadest product offerings in the industry, including fuses and fuse accessories, positive temperature coefficient (“PTC”) resettable fuses, electromechanical switches and interconnect solutions, polymer electrostatic discharge (“ESD”) suppressors, varistors, reed switch based magnetic sensing, gas discharge tubes; semiconductor products such as discrete transient voltage suppressor (“TVS”) diodes, TVS diode arrays, protection and switching thyristors, silicon and silicon carbide metal-oxide-semiconductor field effect transistors (“MOSFETs”) and diodes, and insulated gate bipolar transistors (“IGBT”) technologies. The segment covers a broad range of end markets, including industrial motor drives and power conversion, automotive electronics, electric vehicle and related charging infrastructure, aerospace, power supplies, data centers and telecommunications, medical devices, alternative energy and energy storage, building and home automation, appliances, and mobile electronics.

•Transportation Segment: Consists of a wide range of circuit protection, power control and sensing technologies for global original equipment manufacturers (“OEMs”), Tier-one suppliers and parts and aftermarket distributors in passenger vehicles, heavy-duty truck and bus, off-road and recreational vehicles, material handling equipment, agricultural machinery, construction equipment and other commercial vehicle end markets. Passenger vehicle products are used in internal combustion engines, hybrid and electric vehicles including blade fuses, battery cable protectors, resettable fuses, high-current fuses, high-voltage fuses, and sensor products designed to monitor the occupant’s safety and environment as well as the vehicle’s powertrain. Commercial vehicle products include fuses, switches, circuit breakers, relays, and power distribution modules and units used in applications serving a number of end markets, including heavy-duty truck and bus, construction, agriculture, material handling and marine.

•Industrial Segment: Consists of industrial circuit protection (industrial fuses), protective and monitoring relays (protection relays, residual current devices and monitors, ground fault circuit interrupters, solid state switches, and arc fault detection devices), and industrial controls and sensors (contactors, transformers, and temperature sensors) for use

Table of Contents

in various applications such as renewable energy and energy storage systems, industrial safety, factory automation, electric vehicle charging infrastructure, HVAC systems, non-residential construction, MRO, and mining.

The Company has provided this segment information for comparable prior periods. Segment information is summarized as follows:


	Three Months Ended				Six Months Ended
(in thousands)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Net sales
Electronics	$	335,666	$	305,639	$	642,915	$	596,744
Transportation	179,400		168,964		341,262		339,331
Industrial	98,347		83,886		183,543		157,799
Total net sales	$	613,413	$	558,489	$	1,167,720	$	1,093,874

Other segment expenses (b)
Electronics	$	285,805	$	259,474	$	546,288	512,776
Transportation	151,326		153,730		294,271		307,891
Industrial	79,484		74,339		151,606		143,456
Total other segment expenses	$	516,615	$	487,543	$	992,165	$	964,123

Segment operating income
Electronics	$	49,861	$	46,165	$	96,627	$	83,968
Transportation	28,074		15,234		46,991		31,440
Industrial	18,863		9,547		31,937		14,343
Total segment operating income	96,798		70,946		175,555		129,751
Other (a)	(4,020)		(5,440)		(12,627)		(9,293)
Total operating income	92,778		65,506		162,928		120,458
Interest expense	8,568		9,975		17,443		19,586
Foreign exchange loss (gain)	10,448		(315)		15,291		(5,357)
Other income, net	(4,452)		(5,298)		(7,967)		(10,619)
Income before income taxes	$	78,214	$	61,144	$	138,161	$	116,848

(a) Included in "Other" Operating income for the second fiscal quarter of 2025 was $2.5 million ($11.4 million year-to-date) of restructuring charges primarily related to employee termination costs. During the first quarter of 2025, the Company recognized a $0.1 million impairment charge related to certain machinery and equipment within the Electronics segment. See Note 7, Restructuring, Impairment, and Other Charges, for further discussion. In addition, during the second quarter of 2025, the Company recognized $1.5 million ($1.6 million year-to-date) of legal and professional fees and other integration expenses related to completed and contemplated acquisitions. During the first quarter of 2025, the Company recognized a $0.5 million of purchase accounting inventory step-down adjustment related to the Dortmund Fab acquisition.

Included in "Other" Operating income for the second quarter of 2024 was $5.3 million ($7.6 million year-to-date) of restructuring charges primarily related to employee termination costs. During the first quarter of 2024, the Company recognized a $0.9 million impairment charge related to certain machinery and equipment in the commercial vehicle business within the Transportation segment. See Note 7, Restructuring, Impairment, and Other Charges, for further discussion. In addition, during the second quarter of 2024, the Company recognized $0.8 million ($1.8 million year-to-date) of legal and professional fees and other integration expenses related to completed and contemplated acquisitions, partially offset by a gain of $0.7 million ($1.0 million year-to-date) recorded for the sale of two buildings within the Transportation segment.

(b) Other segment operating expenses include cost of sales, selling, general, and administration expenses, and research and development expenses. Other segment expenses are reconciled to the operating income of each segment. The CODM regularly assesses the performance of each operating segment focusing on each operating segment’s revenue and operating income. Other segment operating expenses for the three and six months ended June 29, 2024 were included in order to adhere to the implementation of Accounting Standards Updates ("ASU") No. 2023-07, "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures."

Table of Contents

The Company’s depreciation and amortization expenses by segment for the three and six months ended June 28, 2025 and June 29, 2024 were as follows:


	Three Months Ended				Six Months Ended
(in thousands)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Depreciation
Electronics	$	12,552	$	9,961	$	23,962	$	19,946
Transportation	5,318		5,743		10,817		10,990
Industrial	1,505		1,347		3,026		2,783
Total depreciation	$	19,375	$	17,051	$	37,805	$	33,719

Amortization
Electronics	$	10,098	$	9,809	$	19,875	$	19,665
Transportation	3,406		3,369		6,755		6,753
Industrial	1,348		2,551		2,553		5,136
Total amortization	$	14,852	$	15,729	$	29,183	$	31,554

The Company’s net sales by country were as follows, classified according to the country where the customer is located:


	Three Months Ended				Six Months Ended
(in thousands)	June 28, 2025		June 29, 2024		June 28, 2025		June 29, 2024
Net sales
United States	$	219,480	$	201,825	$	417,858	$	392,258
China	146,343		131,510		275,737		246,679
Other countries (a)	247,590		225,154		474,125		454,937
Total net sales	$	613,413	$	558,489	$	1,167,720	$	1,093,874

The Company’s long-lived assets represent net property, plant, and equipment, and are classified according to the country where the asset is located. The Company's long-lived assets were as follows:


(in thousands)	June 28, 2025		December 28, 2024
Long-lived assets
United States	$	73,709	$	74,698
China	128,373		132,504
Mexico	87,176		89,558
Germany	104,424		58,758
Philippines	63,052		66,174
Other countries	59,783		55,376
Total long-lived assets	$	516,517	$	477,068

Table of Contents

The Company’s additions to net property, plant, and equipment by country were as follows:


	Six Months Ended
(in thousands)	June 28, 2025		June 29, 2024
Additions to long-lived assets
United States	$	5,330	$	6,644
China	3,996		7,088
Mexico	3,283		5,450
Germany	9,693		8,031
Philippines	1,388		2,379
Other countries	3,096		4,277
Total additions to long-lived assets	$	26,786	$	33,869

(a)Each country included in other countries was less than 10% of net sales.

15. Commitments and Contingencies

Off-Balance Sheet Arrangements

As of June 28, 2025, the Company did not have any off-balance sheet arrangements, as defined under SEC rules. Specifically, the Company was not liable for guarantees of indebtedness owed by third parties, the Company was not directly liable for the debt of any unconsolidated entity and the Company did not have any retained or contingent interest in assets. The Company does not participate in transactions that generate relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purpose entities.

Product Warranty Liabilities

The Company's policy is to accrue for warranty claims when a loss is both probable and estimable. Liabilities for warranty claims have historically not been material and in limited instances, customers may make claims for costs they incurred or other damages related to a claim.

The Company carries insurance for potential product liability claims at coverage levels based on the Company's prior claims experience. This coverage is subject to deductibles and various terms and conditions. The Company cannot assure that the level of coverage will be sufficient to cover every possible claim that can arise in its businesses, now or in the future, or that such coverage always will be available should the Company, now or in the future, wish to extend, increase or otherwise adjust its insurance.

The Company has been notified by one of its customers of a product recall potentially due to certain fuses provided by Littelfuse and incorporated in such products. The Company is currently working with its customer to investigate the cause and level of responsibility for this recall. The Company has determined pursuant to ASC 450, "Contingencies", that a loss is reasonably possible. However, the Company continues to evaluate this matter and the ultimate costs of the recall and range of the potential loss cannot be determined at this time. Accordingly, no accrual has been made yet for this matter. Factors that will impact the amount of such losses include the per vehicle cost of fuse replacement, the determination of the relative liability among the customer, the Company, and any relevant third parties, as well as actual insurance recoveries.

Environmental Remediation Liabilities

The Company's operations and facilities are subject to U.S. and non-U.S. laws and regulations governing the protection of the environment and its employees, including those governing air emissions, chemical usage, water discharges, the management and disposal of hazardous substances and wastes, and the cleanup of contaminated sites. The Company could incur significant costs, including cleanup costs, fines, civil or criminal sanctions, or third-party property damage or personal injury claims, in the event of violations or liabilities under these laws and regulations, or non-compliance with the environmental permits required at its facilities. Potentially significant expenditures could be required in order to comply with environmental laws that may be adopted or imposed in the future. The Company is, however, not aware of any threatened or pending material environmental investigations, lawsuits, or claims involving the Company or its operations.

Legal Proceedings

Table of Contents

In the ordinary course of business, the Company may be involved in a number of claims and litigation matters. While it is not feasible to predict the outcome of these matters, based upon the Company's experience and current information known, the Company does not expect the outcome of these matters, either individually or in the aggregate, to have a material adverse effect on its results of operations, financial position, and/or cash flows.

The Company accounts for litigation and claims losses in accordance with ASC 450, "Contingencies" where loss contingency provisions are recognized for probable and estimable losses at the Company's best estimate of a loss or, when a best estimate cannot be made, at its estimate of the minimum loss. These estimates require the application of considerable judgment and are refined each accounting period as additional information becomes known. If the Company is initially unable to develop a best estimate of loss, the minimum amount, which could be an immaterial amount, is recognized. As information becomes known, either the minimum loss amount is increased, or a best estimate can be made, resulting in additional loss provisions. A best estimate may be changed when events result in an expectation different than previously expected.

Pending Litigation and Claims

There were no material pending litigation or claims outstanding as of June 28, 2025.

16. Related Party Transactions

The Company has equity ownership in various investments that are accounted for under the equity method. The following is a description of the investments and related party transactions.

Powersem GmbH: The Company owns 45% of the outstanding equity of Powersem GmbH (“Powersem”), a module manufacturer based in Germany.

EB Tech Co., Ltd.: The Company owns approximately 15% of the outstanding equity of EB Tech Co., Ltd. (“EB Tech”), a company with expertise in radiation technology based in South Korea.

Automated Technology (Phil), Inc.: The Company owns approximately 24% of the outstanding common shares of Automated Technology (Phil), Inc. (“ATEC”), a supplier located in the Philippines that provides assembly and test services. One of the Company's executive officers serves on the Board of Directors of ATEC.


	Three Months Ended June 28, 2025						Three Months Ended June 29, 2024
(in millions)	Powersem		EB Tech		ATEC		Powersem		EB Tech		ATEC
Sales to related party	$	0.3	$	—	$	—	$	0.4	$	—	$	—
Purchase material/service from related party	0.6		0.5		1.4		1.2		0.2		0.8

	Six Months Ended June 28, 2025						Six Months Ended June 29, 2024
(in millions)	Powersem		EB Tech		ATEC		Powersem		EB Tech		ATEC
Sales to related party	$	0.6	$	—	$	—	$	0.9	$	—	$	—
Purchase material/service from related party	1.1		0.7		3.3		2.4		0.4		2.9

	June 28, 2025						December 28, 2024
(in millions)	Powersem		EB Tech		ATEC		Powersem		EB Tech		ATEC
Accounts receivable balance	$	0.1	$	—	$	—	$	—	$	—	$	—
Accounts payable balance	—		0.1		0.6		0.7		0.1		0.7

Table of Contents

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Cautionary Statement Regarding Forward-Looking Statements Under the Private Securities Litigation Reform Act of 1995 (“PSLRA”).

Certain statements in this section and other parts of this Quarterly Report on Form 10-Q may constitute "forward-looking statements" within the meaning of the federal securities laws and are entitled to the safe-harbor provisions of the PSLRA. These statements include statements regarding the Company’s future performance, as well as management's expectations, beliefs, intentions, plans, estimates or projections relating to the future. Such statements can be identified by the use of forward-looking terminology such as "believes," "expects," "may," "estimates," "will," "should," "plans" or "anticipates" or the negative thereof or other variations thereon or comparable terminology, or by discussions of strategy, although not all forward-looking statements contain such terms. The Company cautions that forward-looking statements, which speak only as of the date they are made, are subject to risks, uncertainties and other factors, and actual results and outcomes may differ materially from those indicated or implied by the forward-looking statements. These risks, uncertainties and other factors include, but are not limited to, risks and uncertainties relating to general economic conditions; product demand and market acceptance; economic conditions; the impact of competitive products and pricing; product quality problems or product recalls; capacity and supply difficulties or constraints; coal mining exposures reserves; cybersecurity matters; failure of an indemnification for environmental liability; changes in import and export duty and tariff rates; exchange rate fluctuations; commodity price fluctuations; the effect of the Company's accounting policies; labor disputes and shortages; restructuring costs in excess of expectations; pension plan asset returns less than assumed; uncertainties related to political or regulatory changes; integration of acquisitions may not be achieved in a timely manner, or at all; limited realization of the expected benefits from investment and strategic plans; and other risks that may be detailed in Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and Item 3, “Quantitative and Qualitative Disclosures About Market Risk” of Part I and Item 1, “Legal Proceedings” and Item 1A, “Risk Factors” of Part II of this Report, as well as Item 1A. "Risk Factors" and Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and Item 7A, “Quantitative and Qualitative Disclosures About Market Risk” of Part II of the Company's Annual Report on Form 10-K for the year ended December 28, 2024, and the Company's other filings and submissions with the Securities and Exchange Commission. The Company does not undertake any obligation to update or revise any forward-looking statements to reflect future events or circumstances, new information or otherwise.

This report, including the Management’s Discussion and Analysis of Financial Condition and Results of Operations, should be read in conjunction with information provided in the consolidated financial statements and the related Notes thereto appearing in the Company's Annual Report on Form 10-K for the year ended December 28, 2024.

Management’s Discussion and Analysis of Financial Condition and Results of Operations ("MD&A") is designed to provide information that is supplemental to, and should be read together with, the consolidated financial statements and the accompanying notes. Information in MD&A is intended to assist the reader in obtaining an understanding of (i) the consolidated financial statements, (ii) the changes in certain key items within those financial statements from year-to-year, (iii) the primary factors that contributed to those changes, and (iv) any changes in known trends or uncertainties that the Company is aware of and that may have a material effect on future performance. In addition, MD&A provides information about the Company’s segments and how the results of those segments impact the results of operations and financial condition as a whole.

Table of Contents

Executive Overview

Founded in 1927, Littelfuse is a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 16,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation and electronics end markets – everywhere, every day.

The Company maintains a network of global laboratories and engineering centers that develop new products and product enhancements, provide customer application support and test products for safety, reliability, and regulatory compliance. The Company conducts its business through three reportable segments: Electronics, Transportation, and Industrial. Within these segments, the Company designs, manufactures and sells components and modules empowering a sustainable, connected, and safer world. Our products protect against electrostatic discharge, power surges, short circuits, voltage spikes and other harmful occurrences, safely and efficiently control power and improve productivity and are used to identify and detect temperature, proximity, flow speed and fluid level in various applications.

Executive Summary

For the second quarter of 2025, the Company recognized net sales of $613.4 million, an increase of $54.9 million, or 9.8% as compared to $558.5 million in the second quarter of 2024 including $13.4 million or 2.4% of incremental net sales from the Dortmund Fab acquisition (defined below) in the semiconductor business within the Electronics segment and $7.0 million or 1.3% of favorable changes in foreign exchange rates. The remaining increase in net sales was primarily due to higher volume in the Electronics and Industrial segments. The Company recognized net income of $57.3 million, or $2.30 per diluted share, in the second quarter of 2025 compared to $45.5 million, or $1.82 per diluted share, in the second quarter of 2024. The increase in net income was primarily due to higher operating income across all segments driven by increases in net sales, volume leverage and cost saving initiatives, which were partially offset by higher foreign exchange losses.

Net cash provided by operating activities was $148.2 million for the six months ended June 28, 2025 compared to $126.6 million for the six months ended June 29, 2024. The increase in net cash provided by operating activities was primarily due to higher cash earnings.

Other Risk

The Company has been notified by one of its customers of a product recall potentially due to certain fuses provided by Littelfuse and incorporated in such products. The Company is currently working with its customer to investigate the cause and level of responsibility for this recall. The Company has determined pursuant to ASC 450, "Contingencies" that a loss is reasonably possible. However, the Company continues to evaluate this matter and the ultimate costs of the recall and range of the potential loss cannot be determined at this time. Accordingly, no accrual has been made yet for this matter. Factors that will impact the amount of such losses include the per vehicle cost of fuse replacement, the determination of the relative liability among the customer, the Company, and any relevant third parties, as well as actual insurance recoveries.

Recently, the U.S. government has imposed extensive tariffs on goods imported from several countries, including, without limitation, China, Mexico and Canada, as well as certain broad, product-specific tariffs on foreign goods and products. Tariffs may increase the cost of materials in our supply chain, incur reciprocal levies on components and finished products exported to or imported from affected countries, and have an adverse impact on our cost of goods sold in the U.S. and abroad. These factors in turn could require us to materially increase prices to our customers which may reduce demand, or, if we do not or are unable to increase prices, could result in lower margins on products sold.

Tariffs have resulted in China and other countries imposing reciprocal tariffs on U.S. goods and ceasing sales of certain products to the U.S. and could result in more U.S. trading partners adopting responsive trade policies, including making it more difficult or costly for us to export our products to those countries. Sales to customers outside of the U.S., and to China in particular, comprise a significant portion of our net sales, and reciprocal tariffs may impact our business in China. Further, tariffs and trade policies may continue to change quickly and without warning, and we may not be able to accurately anticipate and mitigate the impacts.

Table of Contents

Results of Operations

The following table summarizes the Company’s unaudited condensed consolidated results of operations for the periods presented. The second quarter of 2025 included $2.5 million ($11.4 million year-to-date) of restructuring charges primarily related to employee termination costs. During the first quarter of 2025, the Company recognized a $0.1 million impairment charge related to certain machinery and equipment within the Electronics segment. See Note 7, Restructuring, Impairment, and Other Charges, for further discussion. In addition, during the second quarter of 2025, the Company recognized $1.5 million ($1.6 million year-to-date) of legal and professional fees and other integration expenses related to completed and contemplated acquisitions. During the first quarter of 2025, the Company recognized a $0.5 million purchase accounting inventory step-down adjustment related to the Dortmund Fab acquisition.

The second quarter of 2024 included $5.3 million ($7.6 million year-to-date) of restructuring charges primarily related to employee termination costs. During the first quarter of 2024, the Company recognized a $0.9 million impairment charge related to certain machinery and equipment in the commercial vehicle business within the Transportation segment. See Note 7, Restructuring, Impairment, and Other Charges, for further discussion. In addition, during the second quarter of 2024, the Company recognized $0.8 million ($1.8 million year-to-date) of legal and professional fees and other integration expenses related to completed and contemplated acquisitions, partially offset by a gain of $0.7 million ($1.0 million year-to-date) recorded for the sale of two buildings within the Transportation segment.


	Second Quarter								First Six Months
(in thousands)	2025		2024		Change		% Change		2025		2024		Change		% Change
Net sales	$	613,413	$	558,489	$	54,924	9.8	%	$	1,167,720	$	1,093,874	$	73,846	6.8	%
Cost of sales	381,359		351,485		29,874		8.5	%	728,410		699,062		29,348		4.2	%
Gross profit	232,054		207,004		25,050		12.1	%	439,310		394,812		44,498		11.3	%
Operating expenses	139,276		141,498		(2,222)		(1.6)	%	276,382		274,354		2,028		0.7	%
Operating income	92,778		65,506		27,272		41.6	%	162,928		120,458		42,470		35.3	%
Income before income taxes	78,214		61,144		17,070		27.9	%	138,161		116,848		21,313		18.2	%
Income taxes	20,872		15,678		5,194		33.1	%	37,248		22,930		14,318		62.4	%
Net income	57,342		45,466		11,876		26.1	%	100,913		93,918		6,995		7.4	%

Net Sales

Net sales increased $54.9 million, or 9.8%, for the second quarter of 2025 compared to the second quarter of 2024 including $13.4 million or 2.4% of incremental net sales from the Dortmund Fab acquisition in the semiconductor business within the Electronics segment and $7.0 million or 1.3% of favorable changes in foreign exchange rates. The remaining increase in net sales was primarily due to higher volume of $22.6 million in the electronics products business within the Electronics segment, $14.5 million in the Industrial segment, and $7.1 million and $5.5 million in the passenger car products and the commercial vehicle businesses, respectively, within the Transportation segment due to higher end market demand and favorable price, partially offset by lower volume from the remaining semiconductor business within the Electronics segment.

Net sales increased $73.8 million, or 6.8%, for the six months of 2025 compared to the six months of 2024 including $23.5 million or 2.2% of incremental net sales from the Dortmund Fab acquisition in the semiconductor business within the Electronics segment and $0.4 million of favorable changes in foreign exchange rates. The remaining increase in net sales was primarily due to higher volume of $38.4 million in the electronics products business within the Electronics segment and $25.7 million in the Industrial segment due to higher end market demand and favorable price, partially offset by lower volume from the remaining semiconductor business within the Electronics segment.

Cost of Sales

Cost of sales was $381.4 million, or 62.2% of net sales, in the second quarter of 2025 compared to $351.5 million, or 62.9% of net sales, in the second quarter of 2024. As a percent of net sales, cost of sales decreased 0.7% primarily driven by improved margin from the commercial vehicle and passenger car products businesses within the Transportation segment and across all businesses within the Industrial segment driven by favorable price, volume leverage, and cost reduction initiatives. In addition, higher volume from the electronics products business within the Electronics segment favorably impacted the decrease in cost of sales as percent of net sales that was partially offset by lower gross margin from the semiconductor business within the Electronics segment.

Table of Contents

Cost of sales was $728.4 million, or 62.4% of net sales, in the first six months of 2025 compared to $699.1 million, or 63.9% of net sales, in the first six months of 2024. As a percent of net sales, cost of sales decreased 1.5% primarily driven by higher volume in the electronics products business within the Electronics segment and across all businesses in the Industrial segment. Additionally, improved margin from the commercial vehicle and the passenger car products businesses within the Transportation segment driven by volume leverage, favorable price, and cost reduction initiatives favorably impacted the decrease in cost of net sales as percent of net sales that was partially offset by lower volume from the semiconductor business within the Electronics segment.

Gross Profit

Gross profit was $232.1 million, or 37.8% of net sales, in the second quarter of 2025 compared to $207.0 million, or 37.1% of net sales, in the second quarter of 2024. The $25.1 million increase in gross profit was primarily due to higher volume from the electronics products business within the Electronics segment and across all businesses within the Industrial segment and improved margin from the commercial vehicle and the passenger car products businesses within the Transportation segment, partially offset by lower volume from the semiconductor business within the Electronics segment.

Gross profit was $439.3 million, or 37.6% of net sales, in the first six months of 2025 compared to $394.8 million, or 36.1% of net sales, in the first six months of 2024. The $44.5 million increase in gross profit was primarily from higher volume in the electronics products business within the Electronics segment, across all businesses within the Industrial segment, and the commercial vehicle and the passenger car products businesses within the Transportation driven by higher volume, favorable price, and product mix, partially offset by lower volume from the semiconductor business within the Electronics segment.

Operating Expenses

Operating expenses were $139.3 million, or 22.7% of net sales, for the second quarter of 2025 compared to $141.5 million, or 25.3% of net sales, for the second quarter of 2024. The decrease in operating expenses of $2.2 million was primarily due to lower restructuring, impairment, and other charges of $2.7 million related to cost control initiatives in the semiconductor business within the Electronics segment implemented in the prior year.

Operating expenses were $276.4 million, or 23.7% of net sales, for the first six months of 2025 compared to $274.4 million, or 25.1% of net sales, for the first six months of 2024. The increase in operating expenses of $2.0 million was primarily due to higher selling, general, and administrative expenses of $3.7 million driven by the Dortmund Fab acquisition and restructuring, impairment, and other charges of $3.0 million related to company-wide cost control initiatives implemented in the first quarter of 2025, partially offset by lower amortization expense of $2.4 million and research and development expenses of $2.4 million.

Operating Income

Operating income was $92.8 million, representing an increase of $27.3 million, or 41.6%, for the second quarter of 2025 compared to $65.5 million for the second quarter of 2024. The increase in operating income was due to higher gross profit from the electronics products business within the Electronics segment and the Transportation and Industrial segments, and lower operating expenses mainly driven by lower restructuring, impairment, and other charges, partially offset by lower gross profit from the semiconductor business within the Electronics segment. Operating margins increased from 11.7% in the second quarter of 2024 to 15.1% in the second quarter of 2025 driven by improved gross margin in the Transportation and Industrial segments.

Operating income was $162.9 million, representing an increase of $42.5 million, or 35.3%, for the first six months of 2025 compared to $120.5 million for the first six months of 2024. The increase in operating income was due to higher gross profit across all segments, partially offset by higher operating expenses mainly driven by higher selling, general, and administrative expenses from the Dortmund Fab acquisition and restructuring, impairment, and other charges due to company-wide cost control initiatives implemented in the first quarter of 2025. Operating margins increased from 11.0% in the first six months of 2024 to 14.0% in the first six months of 2025 driven by improved gross margin in the Industrial and Transportation segments.

Income Before Income Taxes

Table of Contents

Income Taxes

The effective tax rate for the three and six months ended June 28, 2025 was 26.7% and 27.0%, respectively, compared to the effective tax rate for the three and six months ended June 29, 2024 of 25.6% and 19.6%, respectively. The effective tax rate for 2025 is higher than the effective tax rate for the comparable 2024 periods primarily due to increases in foreign exchange losses and losses in non-U.S. jurisdictions with no related tax benefit, as compared to 2024. The 2024 periods also recognized more favorable tax rate benefits due to lapses in the statute of limitations for previously unrecognized tax benefits, as compared to the 2025 periods.

The effective tax rates for the three and six months ended June 28, 2025 are higher than the statutory tax rate primarily due to foreign exchange losses and losses in non-U.S. jurisdictions with no related tax benefit. The effective tax rate for the three months ended June 29, 2024 is higher than the statutory tax rate primarily due to the proportion of pre-tax income that is earned in higher tax jurisdictions. The effective tax rate for the six months ended June 29, 2024 is lower than the statutory tax rate primarily due to the lapse in the statute of limitations for previously unrecognized tax benefits recognized in the first quarter.

Segment Results of Operations

The Company reports its operations by the following segments: Electronics, Transportation and Industrial. Segment information is described more fully in Note 14, Segment Information, of the Notes to Condensed Consolidated Financial Statements included in this Quarterly Report.

The following table is a summary of the Company’s net sales and operating income by segment:


Net Sales	Second Quarter								First Six Months
(in thousands)	2025		2024		Change		% Change		2025		2024		Change		% Change
Electronics	$	335,666	$	305,639	$	30,027	9.8	%	$	642,915	$	596,744	$	46,171	7.7	%
Transportation	179,400		168,964		10,436		6.2	%	341,262		339,331		1,931		0.6	%
Industrial	98,347		83,886		14,461		17.2	%	183,543		157,799		25,744		16.3	%
Total	$	613,413	$	558,489	$	54,924	9.8	%	$	1,167,720	$	1,093,874	$	73,846	6.8	%


Segment Operating Income	Second Quarter								First Six Months
(in thousands)	2025		2024		Change		% Change		2025		2024		Change		% Change
Electronics	$	49,861	$	46,165	$	3,696	8.0	%	$	96,627	$	83,968	$	12,659	15.1	%
Transportation	28,074		15,234		12,840		84.3	%	46,991		31,440		15,551		49.5	%
Industrial	18,863		9,547		9,316		97.6	%	31,937		14,343		17,594		122.7	%
Total segment operating income	96,798		70,946		25,852				175,555		129,751		45,804
Other (a)	(4,020)		(5,440)		1,420				(12,627)		(9,293)		(3,334)
Total operating income	$	92,778	$	65,506	$	27,272	41.6	%	$	162,928	$	120,458	$	42,470	35.3	%

(a) Included in “Other” Operating income for the second quarter of 2025 was $2.5 million ($11.4 million year-to-date) of restructuring charges primarily related to employee termination costs. During the first quarter of 2025, the Company recognized a $0.1 million impairment charge related to certain machinery and equipment within the Electronics segment. See Note 7, Restructuring, Impairment, and Other Charges, for further discussion. In addition, during the second quarter of 2025, the Company recognized $1.5 million ($1.6 million year-to-date) of legal and professional fees and other integration expenses related to completed and contemplated acquisitions. During the first quarter of 2025, the Company recognized a $0.5 million purchase accounting inventory step-down adjustment related to the Dortmund Fab acquisition.

Table of Contents

Included in “Other” Operating income for the second quarter of 2024 was $5.3 million ($7.6 million year-to-date) of restructuring charges primarily related to employee termination costs. During the first quarter of 2024, the Company recognized a $0.9 million impairment charge related to certain machinery and equipment in the commercial vehicle business within the Transportation segment. See Note 7, Restructuring, Impairment, and Other Charges, for further discussion. In addition, during the second quarter of 2024, the Company recognized $0.8 million ($1.8 million year-to-date) of legal and professional fees and other integration expenses related to completed and contemplated acquisitions, partially offset by a gain of $0.7 million ($1.0 million year-to-date) recorded for the sale of two buildings within the Transportation segment.

Electronics Segment

Net Sales

Net sales increased $30.0 million, or 9.8%, in the second quarter of 2025 compared to the second quarter of 2024 and included favorable changes in foreign exchange rates of $3.7 million or 1.2% . The net sales increase was primarily due to higher volume of $22.6 million from the electronics products business driven by higher end market demand and $13.4 million of incremental net sales from the Dortmund Fab acquisition in the semiconductor business, partially offset by lower volume from the remaining semiconductor business.

Net sales increased $46.2 million, or 7.7%, in the first six months of 2025 compared to the first six months of 2024 and included unfavorable changes in foreign exchange rates of $0.1 million. The sales increase was primarily due to higher volume of $38.4 million from the electronics products business driven by higher end market demand and $23.5 million of incremental net sales from the Dortmund Fab acquisition in the semiconductor business, partially offset by lower volume from the remaining semiconductor business.

Operating Income

Operating income was $49.9 million, representing an increase of $3.7 million, or 8.0%, for the second quarter of 2025 compared to $46.2 million for the second quarter of 2024. The increase in operating income was primarily from the electronics products business due to volume leverage. Operating margins decreased from 15.1% in the second quarter of 2024 to 14.9% in the second quarter of 2025 primarily due to lower gross margin for the semiconductor business, partially offset by volume leverage from the electronics products business.

Operating income was $96.6 million, representing an increase of $12.7 million, or 15.1%, for the first six months of 2025 compared to $84.0 million for the first six months of 2024. The increase in operating income was primarily from the electronics products business due to volume leverage. Operating margins increased from 14.1% in the first six months of 2024 to 15.0% in the first six months of 2025 primarily due to volume leverage from the electronics products business, partially offset by lower gross margin from the semiconductor business.

Transportation Segment

Net Sales

Net sales increased $10.4 million, or 6.2%, in the second quarter of 2025 compared to the second quarter of 2024 and included favorable changes in foreign exchange rates of $3.1 million or 1.8%. The net sales increase was primarily due to higher net sales of $7.1 million and $5.5 million in the passenger car products and the commercial vehicle businesses, respectively, driven by increased end market demand and favorable price.

Net sales increased $1.9 million, or 0.6%, in the first six months of 2025 compared to the first six months of 2024 and included favorable changes in foreign exchange rates of $0.9 million. The net sales increase was primarily due to higher net sales of $5.9 million and $3.8 million in the passenger car products and the commercial vehicle businesses respectively, driven by increased end market demand and favorable price, partially offset by lower automotive sensors business volume of $7.7 million driven by the strategic exit of certain lower margin products.

Operating Income

Operating income was $28.1 million, representing an increase of $12.8 million, or 84.3%, for the second quarter of 2025 compared to $15.2 million for the second quarter of 2024. The increase in operating income was primarily from the commercial vehicle and passenger car products businesses due to favorable price, volume leverage, and cost reduction initiatives. Operating margins increased from 9.0% in the second quarter of 2024 to 15.6% in the second quarter of 2025 primarily driven by improved gross margin from the commercial vehicle and passenger car products businesses.

Table of Contents

Operating income was $47.0 million, representing an increase of $15.6 million, or 49.5%, for the first six months of 2025 compared to $31.4 million for the first six months of 2024. The increase in operating income was primarily from the commercial vehicle and passenger car products businesses due to favorable price, volume leverage, and cost reduction initiatives. Operating margins increased from 9.3% in the first six months of 2024 to 13.8% in the first six months of 2025 primarily driven by improved gross margin from the commercial vehicle and passenger car products businesses.

Industrial Segment

Net Sales

Net sales increased $14.5 million, or 17.2%, in the second quarter of 2025 compared to the second quarter of 2024 and included favorable changes in foreign exchange rates of $0.2 million. The net sales increase was due to higher volume from industrial control and sensor and industrial circuit protection products driven by favorable price and higher end market demand.

Net sales increased $25.7 million, or 16.3%, in the first six months of 2025 compared to the first six months of 2024 and included unfavorable changes in foreign exchange rates of $0.4 million. The net sales increase was due to higher volume from industrial control and sensor and industrial circuit protection products driven by higher end market demand and favorable price.

Operating Income

Operating income was $18.9 million, representing an increase of $9.3 million, or 97.6%, for the second quarter of 2025 compared to $9.5 million for the second quarter of 2024. The increase in operating income was driven by higher net sales from industrial control and sensor and industrial circuit protection products driven by favorable price, increased end market demand and product mix. Operating margins increased from 11.4% in the second quarter of 2024 to 19.2% in the second quarter of 2025 due to favorable price and higher volume.

Operating income was $31.9 million, representing an increase of $17.6 million, or 122.7%, for the first six months of 2025 compared to $14.3 million for the first six months of 2024. The increase in operating income was driven by higher volume from industrial control and sensor and industrial circuit protection products driven by increased end market demand, favorable price and product mix. Operating margins increased from 9.1% in the first six months of 2024 to 17.4% in the first six months of 2025 due to higher volume and favorable price.

Geographic Net Sales Information

Net sales by geography represent net sales to customer or distributor locations. The following table is a summary of the Company’s net sales by geography:


	Second Quarter								First Six Months
(in thousands)	2025		2024		Change		% Change		2025		2024		Change		% Change
Americas	$	249,440	$	228,330	$	21,110	9.2	%	$	474,130	$	443,114	$	31,016	7.0	%
Asia-Pacific	223,803		214,100		9,703		4.5	%	429,087		407,789		21,298		5.2	%
Europe	140,170		116,059		24,111		20.8	%	264,503		242,971		21,532		8.9	%
Total	$	613,413	$	558,489	$	54,924	9.8	%	$	1,167,720	$	1,093,874	$	73,846	6.8	%

Americas

Net sales increased $21.1 million, or 9.2%, in the second quarter of 2025 compared to the second quarter of 2024. The increase in net sales was primarily due to higher volume from the Industrial segment, the electronics products business within the Electronics segment and the commercial vehicle businesses within the Transportation segment.

Net sales increased $31.0 million, or 7.0%, in the first six months of 2025 compared to the first six months of 2024 and included unfavorable changes in foreign exchange rates of $0.6 million. The increase in net sales was due to higher volume from the Industrial segment, the electronics products business within the Electronics segment, partially offset by lower volume from the passenger car product business within the Transportation segment.

Asia-Pacific

Net sales increased $9.7 million, or 4.5%, in the second quarter of 2025 compared to the second quarter of 2024 and included favorable changes in foreign exchange rates of $0.8 million. The increase in net sales was primarily due to higher net sales from

Table of Contents

the electronics products business within the Electronics segment and the passenger car products business within the Transportation segment, partially offset by lower volume from the semiconductor business within the Electronics segment.

Net sales increased $21.3 million, or 5.2%, in the first six months of 2025 compared to the first six months of 2024 and included unfavorable changes in foreign exchange rates of $1.8 million. The increase in net sales was primarily due to higher net sales from the electronics products business within the Electronics segment and the passenger car products and the commercial vehicle businesses within the Transportation segment, partially offset by lower volume from the semiconductor business within the Electronics segment and the automotive sensor business within the Transportation segment.

Europe

Net sales increased $24.1 million, or 20.8%, in the second quarter of 2025 compared to the second quarter of 2024 and included favorable changes in foreign exchange rates of $6.2 million. The increase in net sales was primarily due to $13.4 million or 2.4% of incremental net sales from the Dortmund Fab acquisition in the semiconductor business within the Electronics segment and higher net sales from the electronics products business within the Electronics segment.

Net sales increased $21.5 million, or 8.9%, in the first six months of 2025 compared to the first six months of 2024 and included favorable changes in foreign exchange rates of $2.8 million. The increase in net sales was primarily due to $23.5 million or 2.2% of incremental net sales from the Dortmund Fab acquisition in the semiconductor business within the Electronics segment.

Liquidity and Capital Resources

The Company has historically supported its liquidity needs through cash flows from operations. Management expects that the Company’s (i) current level of cash, cash equivalents, and marketable securities, (ii) current and forecasted cash flows from operations, (iii) availability under existing funding arrangements, and (iv) access to capital in the capital markets will provide sufficient funds to support the Company’s operations, capital expenditures, investments, and debt obligations on both a short-term and long-term basis.

Cash and cash equivalents were $685.2 million as of June 28, 2025, a decrease of $39.7 million, as compared to December 28, 2024. As of June 28, 2025, $265.1 million of the Company's $685.2 million cash and cash equivalents was held by U.S. subsidiaries.

Revolving Credit Facility and Term Loan

Table of Contents

ended June 28, 2025, the Company made term loan payments of $3.8 million and $7.5 million, respectively. The revolving loan and term loan balances under the Credit Facility were $100.0 million and $273.8 million, respectively, as of June 28, 2025.

As of June 28, 2025, the effective interest rate on the unhedged portion of the outstanding borrowings under the credit facility was 5.68%, and 4.13% on the hedged portion.

Senior Notes

Table of Contents

The Company may redeem the Senior Notes upon the satisfaction of certain conditions and the payment of a make-whole amount to note holders and are required to offer to repurchase the Senior Notes at par following certain events, including a change of control.

Debt Covenants

The Company was in compliance with all covenants under the Credit Agreement and Senior Notes as of June 28, 2025 and currently expects to remain in compliance based on management’s estimates of operating and financial results for 2024. As of June 28, 2025, the Company met all the conditions required to borrow under the Credit Agreement and management expects the Company to continue to meet the applicable borrowing conditions.

Acquisitions

On December 31, 2024, the Company completed the acquisition of Dortmund Fab from Elmos Semiconductor SE. The total purchase price for the Dortmund Fab was approximately €94 million, of which a €37.2 million down payment (approximately $40.5 million) was paid in the third quarter of 2023 after regulatory approvals, and €56.7 million (approximately $58.8 million) was paid at closing. The business is reported in the Electronics-Semiconductor business within the Company’s Electronics segment.

Dividends

During the second quarter of 2025, the Company paid quarterly dividends of $17.3 million to its shareholders. On July 30, 2025, the Company announced the declaration of a quarterly cash dividend of $0.75 per share, a 7% increase from the first quarter, payable on September 4, 2025 to stockholders of record as of August 21, 2025.

Cash Flow Overview


	First Six Months
(in thousands)	2025		2024
Net cash provided by operating activities	$	148,225	$	126,574
Net cash used in investing activities	(89,704)		(26,677)
Net cash used in financing activities	(120,543)		(79,290)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	22,468		(14,434)
(Decrease) increase in cash, cash equivalents, and restricted cash	(39,554)		6,173
Cash, cash equivalents, and restricted cash at beginning of period	726,437		557,123
Cash, cash equivalents, and restricted cash at end of period	$	686,883	$	563,296

Cash Flow from Operating Activities

Operating cash inflows are largely attributable to sales of the Company’s products. Operating cash outflows are largely attributable to recurring expenditures for raw materials, labor, rent, interest, taxes and other operating activities.

Cash Flow from Investing Activities

Net cash used in investing activities was $89.7 million for the six months ended June 28, 2025 compared to $26.7 million during the six months ended June 29, 2024. Net cash paid for the Dortmund Fab acquisition was $57.4 million during the six months ended June 28, 2025. Capital expenditures were $33.0 million, representing a decrease of $1.7 million, compared to the six months ended June 29, 2024. During the six months ended June 29, 2024, the Company received proceeds of $8.7 million from the sale of two buildings within the Transportation segment.

Cash Flow from Financing Activities

Table of Contents

Net cash used in financing activities was $120.5 million for the six months ended June 28, 2025 compared to $79.3 million for the six months ended June 29, 2024. During the six months ended June 28, 2025, the Company paid off $50 million of U.S. Senior Notes, Series A, due February 15, 2025 and made payments of $7.5 million on the term loan. During the six months ended June 29, 2024, the Company made payments of $3.8 million on the term loan. The Company paid dividends of $34.7 million and $32.3 million in the six months ended June 28, 2025 and June 29, 2024, respectively. In addition, during the six months ended June 28, 2025 and June 29, 2024, the Company repurchased 120,689 shares of its common stock totaling $27.4 million and 179,311 shares of its common stock totaling $40.9 million, respectively. The Company paid a $0.2 million excise tax related to the share repurchases during the three and six months ended June 28, 2025.

Share Repurchase Program

On April 25, 2024, the Company's Board of Directors authorized a three-year program to repurchase up to $300.0 million in the aggregate of shares of the Company's stock for the period from May 1, 2024 to April 30, 2027 ("2024 program") to replace its previous 2021 program. The Company did not repurchase shares of its common stock for the three months ended June 28, 2025. During the six months ended June 28, 2025, the Company repurchased 120,689 shares of its common stock totaling $27.4 million pursuant to the 2024 program. During the three and six months ended June 29, 2024, the Company repurchased 109,031 and 179,311 shares of its common stock totaling $24.7 million and $40.9 million, respectively, of which $38.9 million was pursuant to the 2021 program and $2.0 million was pursuant to the 2024 program.

Off-Balance Sheet Arrangements

Critical Accounting Policies and Estimates

The Company’s Condensed Consolidated Financial Statements are prepared in accordance with U.S. GAAP. In connection with the preparation of the Condensed Consolidated Financial Statements, the Company uses estimates and makes judgments and assumptions about future events that affect the reported amounts of assets, liabilities, revenue, expenses, and the related disclosures. The assumptions, estimates, and judgments are based on historical experience, current trends, and other factors the Company believes are relevant at the time it prepares the Condensed Consolidated Financial Statements.

The significant accounting policies and critical accounting estimates are consistent with those discussed in Note 1, Summary of Significant Accounting Policies and Other Information, to the consolidated financial statements and the MD&A section of the Company’s Annual Report on Form 10-K for the year ended December 28, 2024. During the six months ended June 28, 2025, there were no significant changes in the application of critical accounting policies and estimates.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

See Item 7A, Quantitative and Qualitative Disclosures about Market Risk, of the Company's Annual Report on Form 10-K for the year ended December 28, 2024. During the six months ended June 28, 2025, there were no material changes in the Company's exposure to market risk.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Disclosure controls and procedures (as defined in Rules 13a-15(b) and 15d-15(e) under the Exchange Act) are designed to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SEC rules and forms, and that such information is accumulated and communicated to management, including the Company's Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosures.

In connection with the preparation of this report, management, under the supervision and with the participation of the Chief Executive Officer and Chief Financial Officer, conducted an evaluation of the effectiveness of the design and operation of the Company's disclosure controls and procedures as of June 28, 2025. Based on that evaluation, the Company's Chief Executive

Table of Contents

Officer and Chief Financial Officer have concluded that, as of the quarter ended June 28, 2025, the Company's disclosure controls and procedures were not effective, because of the previously reported material weaknesses in internal control over financial reporting, as described below.

Previously Reported Material Weaknesses in Internal Control over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Exchange Act Rule 13a-15(f) and 15d-15(f) based on the criteria established in Internal Control-Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (“the COSO Framework). As reported in our Form 10-K for the fiscal year ended December 28, 2024, we did not maintain effective internal control over financial reporting as of December 28, 2024 as a result of material weaknesses in the control environment and control activities areas. A material weakness (as defined in Rule 12b-2 under the Exchange Act) is a deficiency, or combination of deficiencies, in internal control over financial reporting such that there is a reasonable possibility that a material misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis. Refer to our 2024 Form 10-K for a description of our material weaknesses.

Ongoing Remediation Efforts to Address Material Weaknesses

Our material weaknesses were not remediated as of June 28, 2025. Our management team is committed to maintaining a strong internal control environment. The Company, with oversight from our Audit Committee of the Board of Directors, is taking comprehensive actions to remediate the material weaknesses. The Company has developed and is in the process of implementing its remediation plan, which includes the following steps:

Control Environment

•recruiting of personnel with appropriate internal controls, and accounting knowledge and experience commensurate with our accounting and reporting requirements;

•enhanced supervision of personnel at certain locations to ensure compliance with established Company policies; and

•evaluating and updating (as appropriate) the sufficiency of policies and training provided to personnel to ensure the appropriate segregation of duties and adherence to the Code of Conduct.

Control Activities

•augmentation of training and clear instruction as to the process for recording of adjustments to inventories;

•full physical inventory observations, facilitated by independent counters, until the cycle count and related inventory existence controls at certain of our non-U.S. manufacturing locations are operating effectively;

•implementation of a management review control over inventory movements;

•examination and enhancement of the procedures to evaluate the completeness and accuracy of data and assumptions utilized in computing inventory reserves.

The Company has made progress with a number of initiatives and actions to address the previously reported material weaknesses, which include the following:

Control Environment

•The Company has replaced certain key finance and operational roles at certain non-U.S. manufacturing locations, and continues to actively recruit the remaining open roles;

•The Company is substantially complete with the redesign of the regional operations and finance organizational structures;

•New corporate policies and procedures have been adopted and disseminated along with training provided to strengthen the control environment and inventory management oversight

Control Activities

•Key monitoring controls have been designed and implemented for cycle counts, full physical count, inventory storage locations, and excessive and obsolete inventory calculations;

•Full physical inventory observations, facilitated by independent counters, have been performed in certain non-U.S. locations in the second quarter of 2025 and will continue for the remainder of fiscal year 2025.

We intend to remediate the material weaknesses as soon as possible; however, the material weaknesses will not be considered remediated until the applicable controls operate for a sufficient period of time and management has concluded, through testing, that the appropriate controls are operating effectively.

Table of Contents

Changes in Internal Control over Financial Reporting

Other than the ongoing remediation efforts described above, there were no changes in the Company's internal control over financial reporting identified in connection with the evaluation required by Rules 13a-15(f) and 15d-15(f) under the Exchange Act that occurred during the quarter ended June 28, 2025 that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

PART II – OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

None.

ITEM 1A. RISK FACTORS

Changes in U.S. and other countries trade policy, including the imposition of tariffs and the resulting consequences and uncertainties, may have a material adverse impact on our business and results of operations.

Our international presence subjects us to risks associated with international trade conflicts between the United States and its trade partners, particularly with regard to the risk of heightened tariffs and import/export controls. Recently, the U.S. government has imposed extensive tariffs on several countries, including, without limitation, China, Mexico and Canada, as well as certain broad, product-specific tariffs on foreign goods and products. Tariffs may increase the cost of materials in our supply chain, incur reciprocal levies on components and finished products exported to or imported from affected countries, and have an adverse impact on our cost of goods sold in the U.S. and abroad. These factors in turn could require us to materially increase prices to our customers which may reduce demand, or, if we do not or are unable to increase prices, could result in lower margins on products sold. Additionally, the adoption or threat of adoption of extensive tariffs could result in an economic slowdown, a significant reduction in consumer confidence, and an increased risk of inflationary pressure, all of which, either separately or together, could adversely affect our business.

Tariffs have resulted in China and other countries imposing reciprocal tariffs on U.S. goods and ceasing sales of certain products to the U.S. and could result in more U.S. trading partners adopting responsive trade policies, including making it more difficult or costly for us to export our products to those countries. Sales to customers outside of the U.S., and to China in particular, comprise a significant portion of our net sales, and reciprocal tariffs may impact our business in China. Continued geopolitical issues and barriers to trade may result in customers outside the U.S. seeking to source products from local suppliers, which could further result in lower sales or lost customers. Further, tariffs and trade policies may continue to change quickly and without warning, and we may not be able to accurately anticipate and mitigate the impacts.

Other than the item listed above, there have been no material changes in our risk factors from those disclosed in our Annual Report on Form 10-K for our year ended December 28, 2024.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Recent Sales of Unregistered Securities

None.

Repurchases of Common Stock

On April 25, 2024, the Company's Board of Directors authorized a three-year program to repurchase up to $300.0 million in the aggregate of shares of the Company's stock for the period from May 1, 2024 to April 30, 2027 ("2024 program") to replace its previous 2021 program. The Company did not repurchase shares of its common stock for the three months ended June 28, 2025. During the six months ended June 28, 2025, the Company repurchased 120,689 shares of its common stock totaling $27.4 million pursuant to the 2024 program. During the three and six months ended June 29, 2024, the Company repurchased 109,031 and 179,311 shares of its common stock totaling $24.7 million and $40.9 million, respectively, of which $38.9 million was pursuant to the 2021 program and $2.0 million was pursuant to the 2024 program.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

Table of Contents

ITEM 4. MINE SAFETY DISCLOSURES

None.

ITEM 5. OTHER INFORMATION

None.

ITEM 6. EXHIBITS


Exhibit						Description

10.1						Letter Agreement between Littelfuse, Inc. and Meenal Sethna, dated April 8, 2025 (filed as exhibit 10.1 to the Company’s Form 8-K filed April 9, 2025, File No. 000-20388, and incorporated herein by reference).

10.2						Offer Letter between Lit

LITTELFUSE INC /DE 10-Q