COLUMBIA BANKING SYSTEM, INC. — Director's Dealing 2013

Mar 1, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COLUMBIA BANKING SYSTEM INC (COLB)
CIK: 0000887343
Period of Report: 2013-02-27

Reporting Person: DRESSEL MELANIE J (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-27	Common Stock	A	7500	—	Acquired	76257	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2408	Indirect
Common Stock	8788	Indirect
Common Stock	51134	Indirect

Footnotes

F1: Restricted Stock Award