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Northfield Bancorp (NFBK) director exchanges 18,688 shares in Columbia merger

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(Neutral)
Form Type
4

Rhea-AI Filing Summary

Northfield Bancorp director Rachana A. Kulkarni reported dispositions to the issuer on July 20, 2026, giving up 18,688 common shares and 4,383 restricted stock units. Under a merger with Columbia Financial’s Newco, each share became the right to elect 1.425 Newco shares or $14.25 in cash, and each RSU converted into 1.425 cash-settled units based on Newco’s closing price at vesting. After these transactions, her reported direct holdings of Northfield common stock and RSUs were 0.

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Insider Kulkarni Rachana A
Role Director
Type Security Shares Price Value
Disposition Restricted Stock Units F2 4,383 -- --
Disposition Common Stock F1 18,688 -- --
Holdings After Transaction: Restricted Stock Units — 0 shares (Direct); Common Stock — 0 shares (Direct)
Footnotes (2)
  1. F1. Pursuant to the Agreement and Plan of Merger dated as of January 31, 2026, by and among Columbia Financial, Inc., a Delaware corporation, Columbia Financial, Inc., a Maryland corporation (Newco), Columbia Bank MHC and Northfield Bancorp, Inc. (Merger Agreement), at the effective time of the merger between Northfield Bancorp, Inc, and Newco, each issued and outstanding share of Northfield Bancorp, Inc. common stock was converted into the right to receive, at the election of the holder, either (i) 1.425 shares of Newco common stock or (ii) $14.25 in cash.
  2. F2. Pursuant to the Merger Agreement, each restricted stock unit was converted into the right to receive 1.425 units that will be settled in cash based on the closing price of Newco common stock on the day of vesting.
Common shares disposed 18,688 shares Disposition to issuer on 2026-07-20 in connection with merger consideration
Restricted stock units disposed 4,383 RSUs RSUs converted and surrendered on 2026-07-20 as part of merger treatment
Stock-for-stock exchange ratio 1.425 shares Each Northfield common share could be exchanged for 1.425 Newco common shares
Cash election price per share $14.25 Alternative cash consideration per Northfield common share under the merger agreement
RSU cash-settled units per RSU 1.425 units Each restricted stock unit converted into 1.425 units settled in cash based on Newco’s closing price
Agreement and Plan of Merger regulatory
"Pursuant to the Agreement and Plan of Merger dated as of January 31, 2026"
An Agreement and Plan of Merger is a formal document where two companies agree to combine into one, outlining how the process will happen. It’s like a step-by-step plan for merging, and it matters because it shows both sides have agreed on the details before the official transition takes place.
effective time of the merger regulatory
"At the effective time of the merger between Northfield Bancorp, Inc. and Newco"
The effective time of the merger is the exact moment when a planned combination of two companies legally takes effect, usually specified in the merger agreement and reflected by the formal filing or timestamp. For investors, it is the point when ownership, voting rights, financial reporting and control shift—like a light switch flipping that joins two rooms into one—so it determines when shares convert, who controls corporate decisions and which results appear in financial statements.
restricted stock unit financial
"Each restricted stock unit was converted into the right to receive 1.425 units"
A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What did Northfield Bancorp (NFBK) director Rachana A. Kulkarni report on this Form 4?

She reported disposing of 18,688 Northfield common shares and 4,383 restricted stock units on July 20, 2026, as these securities were surrendered to the issuer in connection with a merger and converted into merger consideration.

How many Northfield Bancorp (NFBK) common shares were converted in the merger for Rachana A. Kulkarni?

She reported that 18,688 issued and outstanding Northfield common shares were disposed of. Each share was converted into the right to receive, at the holder’s election, either 1.425 shares of Newco common stock or $14.25 in cash under the merger agreement.

What consideration per share did Northfield Bancorp (NFBK) shareholders elect in the Columbia Financial merger?

Each Northfield common share became the right to receive either 1.425 shares of Newco common stock or $14.25 in cash, at the election of the holder, pursuant to the Agreement and Plan of Merger involving Columbia Financial and Newco.

How were Northfield Bancorp (NFBK) restricted stock units treated in the merger?

Each restricted stock unit was converted into the right to receive 1.425 units that will be settled in cash, with the cash amount based on the closing price of Newco common stock on the day the units vest, according to the merger agreement footnote.

Does Rachana A. Kulkarni hold any Northfield Bancorp (NFBK) securities after these transactions?

After the reported dispositions, her total shares following transaction for both Northfield common stock and restricted stock units is shown as 0. This reflects the conversion of her Northfield equity positions into merger consideration and no remaining reported Northfield holdings.
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
X
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*
Kulkarni Rachana A

(Last)(First)(Middle)
581 MAIN ST.
SUIT 810

(Street)
WOODBRIDGE NEW YORK 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
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/20/2026
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 Stock07/20/2026D18,688D(1)0D
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
Restricted Stock Units(2)07/20/2026D4,383 (2) (2)Common Stock4,383(2)0D
Explanation of Responses:
1. Pursuant to the Agreement and Plan of Merger dated as of January 31, 2026, by and among Columbia Financial, Inc., a Delaware corporation, Columbia Financial, Inc., a Maryland corporation (Newco), Columbia Bank MHC and Northfield Bancorp, Inc. (Merger Agreement), at the effective time of the merger between Northfield Bancorp, Inc, and Newco, each issued and outstanding share of Northfield Bancorp, Inc. common stock was converted into the right to receive, at the election of the holder, either (i) 1.425 shares of Newco common stock or (ii) $14.25 in cash.
2. Pursuant to the Merger Agreement, each restricted stock unit was converted into the right to receive 1.425 units that will be settled in cash based on the closing price of Newco common stock on the day of vesting.
Remarks:
/s/ William R. Jacobs, pursuant to Power of Attorney07/20/2026
** 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)