Filing

Form 4

Form 4

0000887343-26-000178·COLUMBIA BANKING SYSTEM INC

Filing metadata

Accession number: 0000887343-26-000178
Form type: Form 4
Filer: COLUMBIA BANKING SYSTEM INC
CIK: CIK 887343
Filed: Sep 15, 2026
Reporting period: Sep 14, 2026
Description: Insider transaction

Documents

0000887343-26-000178-index.htm

Complete submission

0000887343-26-000178.txt

directory listing

Filed by

COLUMBIA BANKING SYSTEM INC