<SEC-DOCUMENT>0000887343-25-000223-index.html : 20250731
<SEC-HEADER>0000887343-25-000223.hdr.sgml : 20250731
<ACCEPTANCE-DATETIME>20250731163459
ACCESSION NUMBER:		0000887343-25-000223
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250729
FILED AS OF DATE:		20250731
DATE AS OF CHANGE:		20250731

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MACHUCA LUIS
		CENTRAL INDEX KEY:			0001133099
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20288
		FILM NUMBER:		251172197

	MAIL ADDRESS:	
		STREET 1:		C/O COLUMBIA BANKING SYSTEM, INC.
		STREET 2:		1301 A STREET
		CITY:			TACOMA
		STATE:			WA
		ZIP:			98402

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COLUMBIA BANKING SYSTEM, INC.
		CENTRAL INDEX KEY:			0000887343
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		ORGANIZATION NAME:           	02 Finance
		EIN:				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

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLUMBIA BANKING SYSTEM INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1753994096.xml
<DESCRIPTION>FORM 4
<TEXT>
Document 1 - file: wk-form4_1753994096.html

Document 1 - RAW XML: wk-form4_1753994096.xml

</DOCUMENT>
</SEC-DOCUMENT>