STEVEN R. GARDNER - 31 Aug 2025 Form 3 Insider Report for COLUMBIA BANKING SYSTEM, INC. (COLB)

Role
Director
Signature
/s/ Lisa M. White, Attorney-in-fact
Issuer symbol
COLB
Transactions as of
31 Aug 2025
Transactions value $
$0
Form type
3
Filing time
03 Sep 2025, 19:43:01 UTC
Previous filing
27 Aug 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
GARDNER STEVEN R Director C/O COLUMBIA BANKING SYSTEM, INC., 1301 A STREET, TACOMA /s/ Lisa M. White, Attorney-in-fact 03 Sep 2025 0001267342

No securities are beneficially owned.