Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:c64da64c-2094-b121-adb2-0e25205695fa 2026-06-14T07:26:18-04:00 Jonathan Moreland Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services COLB: MOORE DEVINE DAVID (VP,SO) Sold (S) 3,872 Shares of COLUMBIA BANKING SYSTEM INC for $29.77 on 6/8 urn:uuid:904f61e9-85ef-9622-6528-8790ab9c4e53 2026-06-10T16:52:47-04:00 COLB: VARNADO ANDDRIA (DIR) Acquired (JB) 3,949 Shares of COLUMBIA BANKING SYSTEM INC for $0.00 on 5/14 urn:uuid:5f1fbde0-6b93-3dc5-ced2-d4ea77cba180 2026-05-18T17:18:03-04:00 COLB: TERRY HILLIARD C III (DIR) Acquired (JB) 3,949 Shares of COLUMBIA BANKING SYSTEM INC for $0.00 on 5/14 urn:uuid:37b699d6-a2e3-50f9-caa4-45f1c789b7ed 2026-05-18T17:17:04-04:00 COLB: STUDENMUND JAYNIE M (DIR) Acquired (JB) 3,949 Shares of COLUMBIA BANKING SYSTEM INC for $0.00 on 5/14 urn:uuid:4c7c22cb-cb98-a396-a7e8-dfe7cdc24dca 2026-05-18T17:16:20-04:00 COLB: SEATON ELIZABETH WHITEHEAD (DIR) Acquired (JB) 3,949 Shares of COLUMBIA BANKING SYSTEM INC for $0.00 on 5/14 urn:uuid:c331ca62-e6a3-75f0-f4b1-cd08a1fd2a27 2026-05-18T17:14:31-04:00 COLB: SCHULTZ JOHN F (DIR) Acquired (JB) 3,949 Shares of COLUMBIA BANKING SYSTEM INC for $0.00 on 5/14 urn:uuid:6caf6a0b-9122-e3a4-c680-65ff9f713ccd 2026-05-18T17:13:25-04:00 COLB: MITCHELL M CHRISTIAN (DIR) Acquired (JB) 3,949 Shares of COLUMBIA BANKING SYSTEM INC for $0.00 on 5/14 urn:uuid:ef265823-e8e6-4c07-4055-65896c69ce5c 2026-05-18T17:10:47-04:00 COLB: MACHUCA LUIS (DIR) Acquired (JB) 3,949 Shares of COLUMBIA BANKING SYSTEM INC for $0.00 on 5/14 urn:uuid:86dd44be-1723-4437-e3ae-a4489440c9e3 2026-05-18T17:10:09-04:00 COLB: LUND RANDAL LEE (DIR) Acquired (JB) 3,949 Shares of COLUMBIA BANKING SYSTEM INC for $0.00 on 5/14 urn:uuid:78266b38-1014-a712-2edb-33427c8b8863 2026-05-18T17:09:01-04:00 COLB: FORREST ERIC (DIR) Acquired (JB) 3,949 Shares of COLUMBIA BANKING SYSTEM INC for $0.00 on 5/14 urn:uuid:2e9c7a75-124b-9b7a-8aa2-08e71abf65cf 2026-05-18T16:31:49-04:00