<SEC-DOCUMENT>0001193125-21-337013-index.html : 20211122 <SEC-HEADER>0001193125-21-337013.hdr.sgml : 20211122 <ACCEPTANCE-DATETIME>20211122172609 ACCESSION NUMBER: 0001193125-21-337013 CONFORMED SUBMISSION TYPE: S-4 PUBLIC DOCUMENT COUNT: 9 FILED AS OF DATE: 20211122 DATE AS OF CHANGE: 20211122 FILER: 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: S-4 SEC ACT: 1933 Act SEC FILE NUMBER: 333-261281 FILM NUMBER: 211433720 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>S-4 <SEQUENCE>1 <FILENAME>d261205ds4.htm <DESCRIPTION>S-4 <TEXT> Document 1 - file: d261205ds4.htm
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