COLUMBIA BANKING SYSTEM, INC. — Director's Dealing 2010

Jul 28, 2010

SEC Form 4/A — Form 4/A

Issuer: COLUMBIA BANKING SYSTEM INC (COLB)
CIK: 0000887343
Period of Report: 2010-06-30

Reporting Person: Roberts Kent (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-06-30	Common Stock	A	895	$14.949	Acquired	18741	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3866	Indirect

Footnotes

F1: ESPP Purchase

F2: Correction of ESPP purchase price