<SEC-DOCUMENT>0000887343-23-000304-index.html : 20231018 <SEC-HEADER>0000887343-23-000304.hdr.sgml : 20231018 <ACCEPTANCE-DATETIME>20231018163033 ACCESSION NUMBER: 0000887343-23-000304 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 51 CONFORMED PERIOD OF REPORT: 20231018 ITEM INFORMATION: Results of Operations and Financial Condition ITEM INFORMATION: Regulation FD Disclosure ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20231018 DATE AS OF CHANGE: 20231018 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: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 000-20288 FILM NUMBER: 231332529 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>8-K <SEQUENCE>1 <FILENAME>colb-20231018.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: colb-20231018.htm
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