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): February 24, 2026

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,

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 25.02. ~~Results~~ Departure of ~~Operations~~Directors ~~and~~or ~~Financial~~Certain ~~Condition~~Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

OnApproval ~~February 2, 2026, Northfield Bancorp, Inc. (the “Company”) issued a press release announcing a strategic transaction and earnings for the quarter and year ended December 31, 2025. A copy~~ of ~~the~~Equity ~~press~~Award ~~release is attached as Exhibit 99.1 to this report.~~ Grants

~~The~~On ~~press~~February ~~release~~4, ~~attached~~2026, asthe anCompensation ~~exhibit~~Committee toof ~~this~~the ~~Current~~Board ~~Report~~of ~~pursuant~~Directors toof ~~this~~Northfield ~~Item~~Bancorp, 2Inc.02 is(the ~~being~~“Company”) ~~furnished~~approved, toand the Board of Directors ratified and approved, the granting to directors and ~~not~~employees ~~filed~~a ~~with~~total of 172,272 restricted stock units. The grants were made under the ~~Securities~~Company’s 2019 Equity Incentive Plan pursuant to award agreements, the forms of which are attached as Exhibits 10.2 and ~~Exchange~~10.3 ~~Commission~~to this Current Report on Form 8-K and are incorporated by reference herein.

~~Item~~Time-based 7awards to employees vest in equal installments over a three-year period, commencing one year from the date of the grant, which was February 4, 2026.~~01. Regulation~~ FDTime-based ~~Disclosure~~awards to directors vest fully on or after February 4, 2027.

~~The~~Approval ~~press release announcing a strategic transaction and earnings for the quarter and year ended December 31, 2025, also announced the declaration~~ of aManagement ~~$0.13~~Cash ~~per~~Incentive ~~common share cash dividend payable on February 25, 2026 to stockholders of record as of February 12, 2026.~~ Plan

On February 4, 2026, the Board of Directors of the Company approved the Company’s 2026 Management Cash Incentive Plan. The 2026 Management Cash Incentive Plan is attached to this 8-K as Exhibit 10.1.

Item 9.01. Financial Statements and Exhibits.

(a) Not Applicable.


Exhibit Number						Description
10.1						2026 Management Cash Incentive Plan
10.2						Form of Time-Based Cash Settled Restricted Stock Unit Agreement for Executive Vice Presidents and Employees
10.3						Form of Time-Based Cash Settled Restricted Stock Unit Agreement for Directors
104						Cover Page Interactive Data File (embedded within Inline XBRL document)

(b) Not Applicable.

(d) Exhibits

Exhibit Number						Description
99.1						Press release dated February 2, 2026
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: February 3, 2026	By:	/s/ William R. Jacobs
DATE: February 6, 2026	By:	/s/ William R. Jacobs
		William R. Jacobs
		Chief Financial Officer
		(Principal Financial and Accounting Officer)

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