STOCK TITAN

[Form 4] Northfield Bancorp, Inc. Insider Trading Activity

Filing Impact
(High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Northfield Bancorp, Inc. Chairman, President & CEO Steven M. Klein used 9,732 shares of common stock at $14.72 per share on July 14, 2026 to satisfy tax obligations tied to accelerated vesting of restricted stock. After this tax-withholding disposition, he holds 464,261 shares directly, plus indirect ESOP and 401(k) holdings and 40,000 stock options exercisable at $16.89 expiring November 1, 2027.

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Insider Klein Steven M
Role Chairman, President & CEO
Type Security Shares Price Value
Tax Withholding Common Stock 9,732 $14.72 $143K
holding Stock Options -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 464,261 shares (Direct); Stock Options — 40,000 shares (Direct); Common Stock — 66,997.09 shares (Indirect, By 401(k))
Footnotes (1)
  1. Represents shares sold by the Reporting Person to satisfy tax obligations in connection with the accelerated vesting of restricted stock previously issued. Reflects transactions not required to be reported pursuant to Section 16 of the Securities Exchange Act of 1934, as amended.
Tax-withholding shares 9,732 shares Shares used to satisfy tax obligations on July 14, 2026
Tax-withholding share value $14.72 per share Value applied to 9,732 shares used for tax obligations
Direct common shares after transaction 464,261 shares Direct holdings of Steven M. Klein following tax-withholding disposition
ESOP indirect holdings 59,118.8800 shares Common stock held indirectly through ESOP as of July 14, 2026
401(k) indirect holdings 66,997.0900 shares Common stock held indirectly through 401(k) as of July 14, 2026
Stock options underlying shares 40,000.0000 shares Shares underlying stock options held directly by Steven M. Klein
Stock option exercise price $16.89 Exercise price of stock options expiring November 1, 2027
Stock option expiration 2027-11-01 Expiration date of 40,000 stock options on common stock
restricted stock financial
"tax obligations in connection with the accelerated vesting of restricted stock previously issued"
Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.
accelerated vesting financial
"tax obligations in connection with the accelerated vesting of restricted stock previously issued"
ESOP financial
"total_shares_following_transaction ... 59118.8800 ... nature_of_ownership: By ESOP"
An Employee Stock Ownership Plan (ESOP) is a program that gives employees ownership shares in their company, often as part of their benefits package. It acts like a company-sponsored savings plan, allowing workers to have a stake in the company's success, which can boost motivation and loyalty. For investors, ESOPs can influence company decisions and stock value, making them an important aspect of corporate ownership and governance.
401(k) financial
"total_shares_following_transaction ... 66997.0900 ... nature_of_ownership: By 401(k)"
A 401(k) is a type of retirement savings plan offered by employers that allows workers to set aside a portion of their paycheck before taxes are taken out. The money saved in a 401(k) can grow over time through investments, helping individuals build funds for their future retirement. It matters to investors because it provides a tax-advantaged way to save and invest for long-term financial security.
Section 16 of the Securities Exchange Act of 1934 regulatory
"transactions not required to be reported pursuant to Section 16 of the Securities Exchange Act of 1934"
A provision of federal securities law that requires company insiders—directors, officers and large shareholders—to publicly report their stock holdings and trades and to surrender any “short-swing” profits from purchases and sales within a six-month window. It acts like a rule that forces leaders to announce their trades and prevents quick buy-sell windfalls, giving investors transparency into insider activity and reducing opportunities for unfair gain.
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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Klein Steven M

(Last)(First)(Middle)
581 MAIN STREET, SUITE 810

(Street)
WOODBRIDGE NEW JERSEY 07095

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Northfield Bancorp, Inc. [ NFBK ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chairman, President & CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/14/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock07/14/2026F9,732(1)D$14.72464,261D
Common Stock66,997.09(2)IBy 401(k)
Common Stock59,118.88(2)IBy ESOP
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Options$16.8911/01/201811/01/2027Common Stock40,00040,000D
Explanation of Responses:
1. Represents shares sold by the Reporting Person to satisfy tax obligations in connection with the accelerated vesting of restricted stock previously issued.
2. Reflects transactions not required to be reported pursuant to Section 16 of the Securities Exchange Act of 1934, as amended.
Remarks:
/s/ William R. Jacobs, pursuant to Power of Attorney07/15/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)