Steven M. Klein - 24 Jan 2026 Form 4 Insider Report for Northfield Bancorp, Inc. (NFBK)

Role: Chairman, President & CEO, Director
Signature: /s/ William R. Jacobs, pursuant to Power of Attorney
Issuer symbol: NFBK
Transactions as of: 24 Jan 2026
Net transactions value: -$78,914
Form type: 4
Filing time: 27 Jan 2026, 15:42:35 UTC
Previous filing: 01 Apr 2025
Next filing: 29 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Klein Steven M	Chairman, President & CEO, Director	581 MAIN STREET, SUITE 810, WOODBRIDGE	/s/ William R. Jacobs, pursuant to Power of Attorney	27 Jan 2026	0001409460

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	NFBK	Common Stock	Tax liability	$47,049	-3,957	-0.82%	$11.89	479,985	24 Jan 2026	Direct	F1
transaction	NFBK	Common Stock	Tax liability	$31,865	-2,680	-0.56%	$11.89	477,305	26 Jan 2026	Direct	F1
holding	NFBK	Common Stock						55,459	24 Jan 2026	By ESOP	F2
holding	NFBK	Common Stock						65,807	24 Jan 2026	By 401(k)	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	NFBK	Stock Options						40,000	24 Jan 2026	Common Stock	40,000	$16.89	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares sold by the Reporting Person to satisfy tax obligations in connection with the vesting of an equity award.
F2	Reflects transactions not required to be reported pursuant to Section 16 of the Security Exchange Act of 1934, as amended.