COLB · Director Steven R

Director Steven R. Gardner filed a Form 144 notice of intent to sell 10,522 shares of Columbia Banking System, Inc. (COLB), with an approximate market value of $328,616.53 based on the filing date. The shares were acquired through open market purchases between 2011 and 2024, and the sale is planned for execution on or after October 29, 2026. As a director, this sale is notable but not necessarily indicative of a change in company fundamentals.

• Insider: Steven R. Gardner, Director of Columbia Banking System, Inc.
• Proposed sale of 10,522 shares of common stock
• Approximate market value: $328,616.53
• Shares acquired via open market purchases on 08/01/2011 (180 shares), 08/04/2011 (1,650 shares), and 10/03/2024 (8,692 shares)