Form 4 Filing for Janet M. Brown

This Form 4 filing details a transaction by Janet M. Brown, Executive Vice President of Banner Bank. On April 2, 2026, Ms. Brown disposed of 152 shares of Banner Corp common stock. The transaction code "F" indicates shares relinquished to cover tax obligations on the vesting of 609 shares of restricted stock. The shares were disposed of at a price of $60.86 per share, with the post-transaction number of shares owned being 24,394. This transaction is directly owned by Ms. Brown. The filing was signed by Richard C. Arnold as attorney-in-fact on April 3, 2026.