COLUMBIA BANKING SYSTEM, INC. (COLB)

SEC filing

COLUMBIA BANKING SYSTEM, INC.

COLB · CIK 887343

4 · Mar 17, 2026 · BARUFFI KUMI YAMAMOTO sold 937 shares at $26.23/share ($24,578); exercised options for 2,381 shares

BARUFFI KUMI YAMAMOTO sold 937 shares at $26.23/share ($24,578); exercised options for 2,381 shares

FORM 4

xslF345X05/wk-form4_1773793570.xmlSEC.gov

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