X0306 4 2022-03-07 0000946673 BANNER CORP BANR 0001702210 McLean James P.G. 10 SOUTH FIRST AVENUE WALLA WALLA WA 99362 1 Executive VP, Banner Bank Common Stock, $0.01 par value per share 2022-03-07 4 A 0 788 61.28 A 16296 D Common Stock, $0.01 par value per share 2022-03-07 4 F 0 238 61.28 D 16058 D This award for 1,876 performance shares was originally reported on March 29, 2019 at the maximum performance criteria. This supplements that filing to note the actual number of shares that vested based on the performance results as determined by Banner Corporation's Compensation Committee. Market price on February 28, 2022 used for administrative purposes. Shares relinquished to cover tax obligations on vesting of 788 shares of restricted stock pursuant to 2014 Omnibus Incentive Plan. /s/ James P.G. McLean 2022-03-09