<SEC-DOCUMENT>0001214659-16-010017-index.html : 20160302
<SEC-HEADER>0001214659-16-010017.hdr.sgml : 20160302
<ACCEPTANCE-DATETIME>20160302171442
ACCESSION NUMBER:		0001214659-16-010017
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160226
FILED AS OF DATE:		20160302
DATE AS OF CHANGE:		20160302

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:			Robbins Hadley S
		CENTRAL INDEX KEY:			0001392443

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20288
		FILM NUMBER:		161478290

	MAIL ADDRESS:	
		STREET 1:		WEST COAST BANCORP
		STREET 2:		5335 MEADOWS ROAD, SUITE 201
		CITY:			LAKE OSWEGO
		STATE:			OR
		ZIP:			97035
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>marketforms-34655.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: marketforms-34655.html

Document 1 - RAW XML: marketforms-34655.xml

</DOCUMENT>
</SEC-DOCUMENT>