COLUMBIA BANKING SYSTEM, INC. — Director's Dealing 2012

Jan 26, 2012

SEC Form 5 — Annual Statement of Changes in Beneficial Ownership

Issuer: COLUMBIA BANKING SYSTEM INC (COLB)
CIK: 0000887343
Period of Report: 2011-12-31

Reporting Person: McDonald Andy (Executive Vice President)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	18764	Direct
Common Stock	4811	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non-Qualified Stock Option (Right to Buy)	$21.66	2012-05-26	Common Stock (5000)	5000	Direct

Footnotes

F1: Reflects change in 401(k) year end balance