Form 4 Filing for John Klimowich

This filing details transactions made by John Klimowich, SEVP & Chief Risk Officer of Columbia Financial, Inc. (CLBK). On March 13, 2026, Klimowich acquired 589.1476 shares of Common Stock under a stock-based deferral plan at a price of $17.48 per share, resulting in a post-transaction holding of 8926.8984 shares in this capacity. The filing also lists Klimowich's other holdings, including direct ownership of 61,464 common shares and indirect ownership through various plans such as a 401(k), ESOP, SERP, SIM, and multiple stock awards (Awards II through V). Additionally, the report details various stock options granted under the 2019 Equity Incentive Plan, with different vesting schedules and exercise prices, and currently held directly by Klimowich.