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

Rhea-AI Filing Summary

Columbia Financial (CLBK) reported an insider transaction by its SEVP & Head of Consumer Banking. On 10/17/2025, the officer acquired 24.3715 shares of common stock at $13.73 through the company’s Stock-Based Deferral Plan, a non-qualified plan that settles in shares upon distribution.

Following the transaction, the officer held 13,437.0189 shares indirectly via the deferral plan, alongside other reported holdings including 64,281 shares direct and positions via ESOP, SERP, SIM, and performance-based stock awards. The filing also lists stock options outstanding, including 155,294 options at an exercise price of $15.60 expiring on 07/23/2029, plus additional tranches at $15.94, $16.49, and $16.23 with expirations through 2035.

Insights

Corporate governance analyst

Routine Form 4 showing small plan-based acquisition.

This filing records a modest acquisition of 24.3715 shares at $13.73 via a stock-based deferral plan on 10/17/2025. Such deferral plans credit phantom stock units that are later settled in shares upon distribution.

The filing also itemizes existing holdings and option grants, notably 155,294 options at $15.60 expiring 07/23/2029, with additional option tranches extending to 2035. Actual market impact depends on future exercises or distributions; the filing lists positions but does not indicate sales.

This is administrative in nature and does not change the company’s outlook on its own.

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

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^*

Schlesinger Allyson Katz

(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)
	SEVP&Head of Consumer Banking

3. Date of Earliest Transaction (Month/Day/Year)
10/17/2025

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	10/17/2025		A		24.3715(1)	A	$13.73	13,437.0189	I	By Stock-Based Deferral Plan
Common Stock								64,281	D
Common Stock								6,683	I	By ESOP
Common Stock								6,459	I	By SERP
Common Stock								4,683	I	By SIM
Common Stock								14,470	I	By Stock Award II(2)
Common Stock								12,672	I	By Stock Award III(3)
Common Stock								12,288	I	By Stock Award IV(4)

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)	$15.6							07/23/2020(5)	07/23/2029	Common Stock	155,294		155,294	D
Stock Options (right to buy)	$15.94							05/01/2024(6)	05/01/2033	Common Stock	12,632		12,632	D
Stock Options (right to buy)	$16.49							03/06/2025(7)	03/06/2034	Common Stock	9,292		9,292	D
Stock Options (right to buy)	$16.23							03/03/2026(8)	03/03/2035	Common Stock	21,289		21,289	D

Explanation of Responses:

1. Represents phantom stock purchased, on a non-discretionary basis, by the trustee of the Bank's rabbi trust maintained in connection with the Columbia Bank Stock Based Deferral Plan, a non-qualified stock-based deferral plan. Stock unit interests under the Columbia Bank Stock Based Deferral Plan will be settled in shares of stock upon distribution to the reporting person.

2. Stock Awards granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive plan, 25% of which vest in three approximately equal annual installments commencing on May 1, 2024; and the remaining 75% of which vest upon achievement of certain specified performance-based vesting criteria, which if achieved, such Awards would vest three years after the date of the Award.

3. Stock Awards granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive plan, 25% of which vest in three approximately equal annual installments commencing on March 6, 2025; and the remaining 75% of which vest upon achievement of certain specified performance-based vesting criteria, which if achieved, such Awards would vest three years after the date of the Award.

4. Stock Awards granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive plan, which vest upon achievement of certain specified performance-based vesting criteria, which if achieved, such Awards would vest three years after the date of the Award on March 3, 2028.

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

6. Stock Options granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan vest in three approximately equal annual installments commencing on May 1, 2024.

7. Stock Options granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan vest in three approximately equal annual installments commencing on March 6, 2025.

8. Stock Options granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan vest in three approximately equal annual installments commencing on March 3, 2026.

Remarks:

	/s/ Dennis E. Gibney, Power of Attorney	10/21/2025
	** 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’s officer report on Form 4?

An acquisition of 24.3715 shares at $13.73 on 10/17/2025 via the Stock-Based Deferral Plan.

What is the Stock-Based Deferral Plan referenced by CLBK?

A non-qualified plan where phantom stock is credited and settled in shares upon distribution to the reporting person.

How many shares did the officer hold via the deferral plan after the transaction?

13,437.0189 shares indirectly through the Stock-Based Deferral Plan.

What other equity positions did the officer report at CLBK?

Holdings include 64,281 shares direct, plus positions via ESOP, SERP, SIM, and performance-based stock awards.

What stock options were listed in the CLBK filing?

Options include 155,294 at $15.60 expiring 07/23/2029, plus tranches at $15.94, $16.49, and $16.23 expiring through 2035.

Who is the reporting person’s role at CLBK?

The officer is SEVP & Head of Consumer Banking.