4processed

Form 4 — Insider Transaction

Columbia Financial, Inc.(CLBK)

Filing Date

May 15, 2026

Accepted

May 15, 2026

Accession No.

0001729859-26-000027

CIK

0001723596

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Klimowich JohnSEVP & Chief Risk OfficerOther34.983$19.579.1KCommon StockMay 15, 2026