$COLB 3 SEC Filings

Filed On	Filing
02 Sep 2026	Form 3: Lagomarsino Simone, Director Holds 32,931 shares of Common Stock
31 Dec 2025	Form 3: Seda Ivan A, EVP, Chief Financial Officer
01 Dec 2025	Form 3: Lakely Brock, EVP, Chief Accounting Officer Holds 10,860 shares of Common Stock
01 Dec 2025	Form 3: Columbia Banking SYSTEM, Inc., EVP, Chief Accounting Officer Holds 10,860 shares of Common Stock
03 Sep 2025	Form 3: Studenmund Jaynie M, Director No securities owned
03 Sep 2025	Form 3: Mitchell M Christian, Director No securities owned
03 Sep 2025	Form 3: Gardner Steven R, Director No securities owned
09 Jun 2025	Form 3: Giem Judi, Chief Human Resources Officer No securities owned
06 Mar 2023	Form 3: Ognall Andrew H, IMO General Counsel Holds 77,731 shares of Common Stock
06 Mar 2023	Form 3: Farnsworth Ron L, Chief Financial Officer Holds 158,619 shares of Common Stock
06 Mar 2023	Form 3: Anderson Drew K, Chief Administrative Officer Holds 20,260 shares of Common Stock
06 Mar 2023	Form 3: Namdar Frank, Chief Credit Officer Holds 35,189 shares of Common Stock
06 Mar 2023	Form 3: Nixon Torran B, Senior Executive VP Holds 129,743 shares of Common Stock
06 Mar 2023	Form 3: White Lisa M, PAO & Corporate Controller Holds 18,824 shares of Common Stock
06 Mar 2023	Form 3: Burns Sheri, Chief Human Resources Officer Holds 37,722 shares of Common Stock
03 Mar 2023	Form 3: O'haver Cort L, Director Holds 376,053 shares of Common Stock
03 Mar 2023	Form 3: Fowler Peggy Y, Director Holds 66,563 shares of Common Stock
03 Mar 2023	Form 3: Schultz John F, Director Holds 28,635 shares of Common Stock
03 Mar 2023	Form 3: Varnado Anddria, Director Holds 14,704 shares of Common Stock
03 Mar 2023	Form 3: Machuca Luis, Director Holds 51,270 shares of Common Stock

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