X0607 3 2026-03-01 0 0000946673 BANNER CORP BANR 0001439122 Steiner Judith A false 10 S. FIRST AVENUE WALLA WALLA WA 99362 1 Common Stock, $0.01 par value per share 1790 D /s/ Richard C. Arnold, attorney-in-fact for Ms. Steiner 2026-03-24