<SEC-DOCUMENT>0000887343-21-000163-index.html : 20211029
<SEC-HEADER>0000887343-21-000163.hdr.sgml : 20211029
<ACCEPTANCE-DATETIME>20211028192213
ACCESSION NUMBER:		0000887343-21-000163
CONFORMED SUBMISSION TYPE:	425
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20211029
DATE AS OF CHANGE:		20211028

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UMPQUA HOLDINGS CORP
		CENTRAL INDEX KEY:			0001077771
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
		IRS NUMBER:				931261319
		STATE OF INCORPORATION:			OR
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		425
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34624
		FILM NUMBER:		211360018

	BUSINESS ADDRESS:	
		STREET 1:		ONE SW COLUMBIA STREET
		STREET 2:		SUITE 1200
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97204
		BUSINESS PHONE:		503-727-4100

	MAIL ADDRESS:	
		STREET 1:		ONE SW COLUMBIA STREET
		STREET 2:		SUITE 1200
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97204

FILED BY:		

	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

	FILING VALUES:
		FORM TYPE:		425

	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

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLUMBIA BANKING SYSTEM INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>425
<SEQUENCE>1
<FILENAME>colb3q2021formxform425fili.htm
<DESCRIPTION>PROSPECTUSES AND COMMUNICATIONS, BUSINESS COMBINATIONS
<TEXT>
Document 1 - file: colb3q2021formxform425fili.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a991colb3q2021earningsrele.htm
<DESCRIPTION>PRESS RELEASE - EARNINGS
<TEXT>
Document 2 - file: a991colb3q2021earningsrele.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>cbsystemsolidbuga16a.jpg
<DESCRIPTION>LOGO
<TEXT>
Document 3 - file: cbsystemsolidbuga16a.jpg

</DOCUMENT>
</SEC-DOCUMENT>