William Justin Jennings - 05 Sep 2025 Form 4 Insider Report for Columbia Financial, Inc. (CLBK)

Role: EVP, Operations Officer
Signature: /s/ Dennis E. Gibney, Power of Attorney
Issuer symbol: CLBK
Transactions as of: 05 Sep 2025
Net transactions value: +$750
Form type: 4
Filing time: 09 Sep 2025, 12:13:25 UTC
Previous filing: 26 Aug 2025
Next filing: 23 Sep 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Jennings William Justin	EVP, Operations Officer	19-01 ROUTE 208 NORTH, FAIR LAWN	/s/ Dennis E. Gibney, Power of Attorney	09 Sep 2025	0001905618

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CLBK	Common Stock	Award	$750	+50	+1.6%	$15.01	3,225	05 Sep 2025	By Stock-Based Deferral Plan	F1
holding	CLBK	Common Stock						11,754	05 Sep 2025	Direct
holding	CLBK	Common Stock						3,116	05 Sep 2025	By ESOP
holding	CLBK	Common Stock						608	05 Sep 2025	By SERP
holding	CLBK	Common Stock						7,795	05 Sep 2025	By Stock Award II	F2
holding	CLBK	Common Stock						7,533	05 Sep 2025	By Stock Award III	F3

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	CLBK	Stock Options (right to buy)						41,475	05 Sep 2025	Common Stock	41,475	$21.79	Direct	F4
holding	CLBK	Stock Options (right to buy)						5,715	05 Sep 2025	Common Stock	5,715	$16.49	Direct	F5
holding	CLBK	Stock Options (right to buy)						13,051	05 Sep 2025	Common Stock	13,051	$16.23	Direct	F6

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

Explanation of Responses:

Id	Content
F1	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.
F2	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.
F3	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.
F4	Stock Options granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan are fully vested and exercisable.
F5	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.
F6	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.