[Form 4] Columbia Financial, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Columbia Financial (CLBK) reported an insider transaction by its EVP, Operations Officer, on 10/10/2025. Two stock awards were disposed of at $0 per share: 7,795 shares and 7,533 shares, each shown as indirect holdings by stock award vehicles, with those award positions reduced to zero after the transactions.

Other reported holdings include 11,754 common shares (direct), 3,116 shares by ESOP (indirect), 608 shares by SERP (indirect), and 3,323.7778 shares via a stock-based deferral plan (indirect). Derivatives reported include stock options for 41,475 shares at $21.79 and 1,905 shares at $16.49, expiring 01/08/2026, noted as fully vested and exercisable.

SEC Form 4

FORM 4

UNITED 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

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X

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Jennings William Justin

(Last) (First) (Middle)

19-01 ROUTE 208 NORTH

(Street)

FAIR LAWN NJ 07410

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Columbia Financial, Inc. [ CLBK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Operations Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/10/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/10/2025		D		7,795	D	$0	0	I	By Stock Award II
Common Stock	10/10/2025		D		7,533	D	$0	0	I	By Stock Award III
Common Stock								3,323.7778	I	By Stock-Based Deferral Plan
Common Stock								11,754	D
Common Stock								3,116	I	By ESOP
Common Stock								608	I	By SERP

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Options (right to buy)	$21.79							03/21/2023(1)	01/08/2026	Common Stock	41,475		41,475	D
Stock Options (right to buy)	$16.49							03/06/2025(1)	01/08/2026	Common Stock	1,905		1,905	D

Explanation of Responses:

1. Stock Options granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan are fully vested and exercisable.

Remarks:

	/s/ Dennis E. Gibney, Power of Attorney	10/14/2025
	** Signature of Reporting Person	Date
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.

FAQ

What did CLBK report in this Form 4?

An EVP, Operations Officer, reported disposing of two stock award positions on 10/10/2025 at $0 per share: 7,795 and 7,533 shares.

What are the insider’s reported common stock holdings after the transactions?

Reported positions include 11,754 shares (direct), 3,116 by ESOP (indirect), 608 by SERP (indirect), and 3,323.7778 via a stock-based deferral plan (indirect).

Which derivative securities were reported for CLBK?

Stock options for 41,475 shares at $21.79 and 1,905 shares at $16.49, expiring on 01/08/2026.

Are the reported stock options vested?

Yes. The filing notes the options are fully vested and exercisable.

What is the insider’s role at CLBK?

The reporting person is an EVP, Operations Officer at Columbia Financial, Inc.

How were the disposed shares held?

They were reported as indirect holdings through stock award vehicles (Stock Award II and Stock Award III).