UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 22, 2025

Northfield Bancorp, Inc.

(Exact name of registrant as specified in its charter)


Delaware	001-35791	80-0882592
(State or other jurisdiction of incorporation)	(Commission File No.)	(I.R.S. Employer Identification No.)


581 Main Street, Suite 810, Woodbridge, New Jersey						07095
(Address of principal executive offices)						(Zip code)

Registrant’s telephone number, including area code: (732) 499-7200

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4 (c))

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

Title of each class

Trading Symbol

Name of exchange on which registered

Common stock, par value $0.01 per share

NFBK

The NASDAQ Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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. ☐

Item 2.02. Results of Operations and Financial Condition.

On October 22, 2025, Northfield Bancorp, Inc. (the "Company") issued a press release announcing its earnings for the quarter ended September 30, 2025. A copy of the press release is attached as Exhibit 99.1 to this report.

The press release attached as an exhibit to this Current Report pursuant to this Item 2.02 is being furnished to, and not filed with, the Securities and Exchange Commission.

Item 8.01. Other Events.

The press release also announced the declaration of a $0.13 per common share cash dividend payable on November 19, 2025 to stockholders of record as of November 5, 2025.

Item 9.01. Financial Statements and Exhibits.

(a) Not Applicable.

(b) Not Applicable.

(d) Exhibits.


Exhibit Number						Description
99.1						Press release dated October 22, 2025
104						Cover Page Interactive Data File (embedded within Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


		NORTHFIELD BANCORP, INC.
DATE: October 23, 2025	By:	/s/ William R. Jacobs
		William R. Jacobs
		Chief Financial Officer
		(Principal Financial and Accounting Officer)

Northfield Bancorp, Inc. 8-K