<SEC-DOCUMENT>0001214659-16-009764-index.html : 20160225
<SEC-HEADER>0001214659-16-009764.hdr.sgml : 20160225
<ACCEPTANCE-DATETIME>20160225060021
ACCESSION NUMBER:		0001214659-16-009764
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160222
FILED AS OF DATE:		20160225
DATE AS OF CHANGE:		20160225

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COLUMBIA BANKING SYSTEM INC
		CENTRAL INDEX KEY:			0000887343
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				911422237
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1301 A STREET
		CITY:			TACOMA
		STATE:			WA
		ZIP:			98402
		BUSINESS PHONE:		2533051900

	MAIL ADDRESS:	
		STREET 1:		1301 A STREET
		CITY:			TACOMA
		STATE:			WA
		ZIP:			98402

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DRESSEL MELANIE J
		CENTRAL INDEX KEY:			0001186640

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20288
		FILM NUMBER:		161453723
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>marketforms-34529.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: marketforms-34529.html

Document 1 - RAW XML: marketforms-34529.xml

</DOCUMENT>
</SEC-DOCUMENT>