COLUMBIA BANKING SYSTEM, INC. — Director's Dealing 2024

Oct 31, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COLUMBIA BANKING SYSTEM, INC. (COLB)
CIK: 0000887343
Period of Report: 2024-10-30

Reporting Person: MACHUCA LUIS (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-10-30	Deferred Compensation Phantom Stock	$	A	1567	Acquired		Common (1567)	Indirect

Footnotes

F1: The deferred compensation plan phantom stock was accrued under the Registrant's deferred compensation plan and will be paid in cash in accordance with the terms of the deferred compensation plan following end of the reporting person's employment with the Registrant.