<SEC-DOCUMENT>0001140361-23-017022-index.html : 20230406 <SEC-HEADER>0001140361-23-017022.hdr.sgml : 20230406 <ACCEPTANCE-DATETIME>20230406161109 ACCESSION NUMBER: 0001140361-23-017022 CONFORMED SUBMISSION TYPE: DEF 14A PUBLIC DOCUMENT COUNT: 42 FILED AS OF DATE: 20230406 DATE AS OF CHANGE: 20230406 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: DEF 14A SEC ACT: 1934 Act SEC FILE NUMBER: 000-20288 FILM NUMBER: 23806285 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>DEF 14A <SEQUENCE>1 <FILENAME>ny20006886_def14a.htm <DESCRIPTION>DEF 14A <TEXT> Document 1 - file: ny20006886_def14a.htm
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