Rinaldi Mayra Liseth 4

4 · Columbia Financial, Inc. · Filed Mar 4, 2026

Insider Transaction Report

Form 4

Period: 2026-03-02

Columbia Financial, Inc.CLBK

Rinaldi Mayra Liseth

EVP, Corp Governance & Culture

Transactions

Award
Stock Options (right to buy)
[F4]
2026-03-02+12,121→ 12,121 total
Exercise: $18.28From: 2027-03-02Exp: 2036-03-02→ Common Stock (12,121 underlying)
Award
Phantom Stock Unit
[F5][F6]
2026-03-02+4,756→ 4,756 total(indirect: Deferred Stock Unit Plan)
→ Common Stock (4,756 underlying)

Holdings

Common Stock
18,160
Common Stock
(indirect: By 401(k))
7,249
Common Stock
(indirect: By ESOP)
6,686
Common Stock
(indirect: By SERP)
68
Common Stock
(indirect: By UTMA Custodian for Daughter)
200
Common Stock
(indirect: By UTMA Custodian for God Daughter)
40
Common Stock
(indirect: By Spouse)
1,624
Common Stock
[F1]
(indirect: By Stock Award II)
8,614
Common Stock
[F2]
(indirect: By Stock Award III)
6,537
Common Stock
[F3]
(indirect: By Stock Award IV)
6,474
Stock Options (right to buy)
[F7]
Exercise: $15.60From: 2020-07-23Exp: 2029-07-23→ Common Stock (49,412 underlying)
49,412
Stock Options (right to buy)
[F8]
Exercise: $15.94From: 2024-05-01Exp: 2033-05-01→ Common Stock (7,519 underlying)
7,519
Stock Options (right to buy)
[F9]
Exercise: $16.49From: 2025-03-06Exp: 2034-03-06→ Common Stock (4,794 underlying)
4,794
Stock Options (right to buy)
[F10]
Exercise: $16.23From: 2026-03-03Exp: 2035-03-03→ Common Stock (11,215 underlying)
11,215

Footnotes (10)

[F1]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.
[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.
[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 vest in three approximately equal annual installments commencing on March 2, 2027.
[F5]One phantom stock unit is the economic equivalent of one share of CLBK Common Stock. Phantom stock units were granted under the Columbia Financial, Inc. 2026 Phantom Stock Plan and will be settled in cash upon distribution.
[F6]On the settlement date, phantom stock units will be payable in cash. The cash value will be calculated, in accordance with the Columbia Financial, Inc. 2026 Phantom Stock Plan, based on the closing stock price of the Company's Common Stock on the determination date.
[F7]Stock Options granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan are fully vested and exercisable.
[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.

Signature

/s/ Dennis E. Gibney, Power of Attorney|2026-03-04

Documents

1 file

4
wk-form4_1772653716.xmlPrimary
FORM 4