X0508 4 2025-11-03 0000946673 BANNER CORP BANR 0002093481 Oxford Daniel Everett 10 S. FIRST STREET WALLA WALLA WA 99362 1 Executive VP, Banner Bank 0 Common Stock, $0.01 par value per share 2025-11-03 4 A 0 1846 60.91 A 6316 D Represents award pursuant to 2023 Omnibus Incentive Plan; shares vest ratably over a three-year period beginning on November 3, 2026 and ending on the third anniversary thereof. Each restricted stock unit represents the right to receive one share of the Issuer's Common Stock upon vesting. These restricted stock units are subject to forfeiture and to limits on transferability until they vest. Closing priceon November 3, 2025. /s/ Richard C. Arnold, attorney-in-fact for Mr. Oxford 2025-11-05