COLUMBIA BANKING SYSTEM, INC. (COLB)

SEC filing

COLUMBIA BANKING SYSTEM, INC.

COLB · CIK 887343

4 · Aug 18, 2026 · EVP CHRO Giem Judi exercised options for 4,786 shares; reported 643 shares

EVP CHRO Giem Judi exercised options for 4,786 shares; reported 643 shares

FORM 4

xslF345X06/wk-form4_1787086248.xmlSEC.gov

a2026-01x28powerofattorn.htm

a2026-01x28powerofattorn.htmSEC.gov

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