Manesh Balachandran Prabhu - 01 May 2025 Form 4 Insider Report for Columbia Financial, Inc. (CLBK)

Role: EVP & CIO
Signature: /s/ Dennis E. Gibney, Power of Attorney
Issuer symbol: CLBK
Transactions as of: 01 May 2025
Net transactions value: -$4,877
Form type: 4
Filing time: 05 May 2025, 15:23:57 UTC
Previous filing: 18 Mar 2025
Next filing: 04 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Prabhu Manesh Balachandran	EVP & CIO	19-01 ROUTE 208 NORTH, FAIR LAWN	/s/ Dennis E. Gibney, Power of Attorney	05 May 2025	0001949911

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CLBK	Common Stock	Tax liability	$4,877	-332	-7.9%	$14.69	3,857	01 May 2025	Direct	F1
holding	CLBK	Common Stock						546	01 May 2025	By Stock-Based Deferral Plan
holding	CLBK	Common Stock						1,292	01 May 2025	By 401(k)	F2
holding	CLBK	Common Stock						2,150	01 May 2025	By ESOP
holding	CLBK	Common Stock						437	01 May 2025	By SERP
holding	CLBK	Common Stock						1,522	01 May 2025	By Stock Award	F3
holding	CLBK	Common Stock						9,690	01 May 2025	By Stock Award II	F4
holding	CLBK	Common Stock						11,315	01 May 2025	By Stock Award III	F5
holding	CLBK	Common Stock						11,018	01 May 2025	By Stock Award IV	F6

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)						12,985	01 May 2025	Common Stock	12,985	$20.54	Direct	F7
holding	CLBK	Stock Options (right to buy)						8,459	01 May 2025	Common Stock	8,459	$15.94	Direct	F8
holding	CLBK	Stock Options (right to buy)						8,296	01 May 2025	Common Stock	8,296	$16.49	Direct	F9
holding	CLBK	Stock Options (right to buy)						19,086	01 May 2025	Common Stock	19,086	$16.23	Direct	F10

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

Explanation of Responses:

Id	Content
F1	The number of shares held directly includes certain shares that were previously held by Stock Award and that have subsequently vested.
F2	This form reflects increases in beneficial ownership resulting from exempt acquisitions pursuant to rule 16b-3(c).
F3	Stock Awards granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan, which vest in three equal annual installments commencing on October 31, 2023.
F4	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.
F5	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.
F6	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.
F7	Stock Options granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan, which vest in three equal annual installments commencing on October 31, 2023.
F8	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.
F9	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.
F10	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.