<SEC-DOCUMENT>0000887343-24-000195-index.html : 20240509 <SEC-HEADER>0000887343-24-000195.hdr.sgml : 20240509 <ACCEPTANCE-DATETIME>20240509071717 ACCESSION NUMBER: 0000887343-24-000195 CONFORMED SUBMISSION TYPE: S-8 PUBLIC DOCUMENT COUNT: 5 FILED AS OF DATE: 20240509 DATE AS OF CHANGE: 20240509 EFFECTIVENESS DATE: 20240509 FILER: COMPANY DATA: COMPANY CONFORMED NAME: COLUMBIA BANKING SYSTEM, INC. CENTRAL INDEX KEY: 0000887343 STANDARD INDUSTRIAL CLASSIFICATION: STATE COMMERCIAL BANKS [6022] ORGANIZATION NAME: 02 Finance IRS NUMBER: 911422237 STATE OF INCORPORATION: WA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: S-8 SEC ACT: 1933 Act SEC FILE NUMBER: 333-279237 FILM NUMBER: 24928551 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-8 <SEQUENCE>1 <FILENAME>colb-formsx82024employeest.htm <DESCRIPTION>S-8 <TEXT> Document 1 - file: colb-formsx82024employeest.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-5.1 <SEQUENCE>2 <FILENAME>colb-ex51opinionofcounsel2.htm <DESCRIPTION>EX-5.1 <TEXT> Document 2 - file: colb-ex51opinionofcounsel2.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.2 <SEQUENCE>3 <FILENAME>ex232consentofdeloittetouc.htm <DESCRIPTION>EX-23.2 <TEXT> Document 3 - file: ex232consentofdeloittetouc.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-24.1 <SEQUENCE>4 <FILENAME>colb-ex241powerofattorney2.htm <DESCRIPTION>EX-24.1 <TEXT> Document 4 - file: colb-ex241powerofattorney2.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-FILING FEES <SEQUENCE>5 <FILENAME>colb-ex107filingfees2024xe.htm <DESCRIPTION>EX-FILING FEES <TEXT> Document 5 - file: colb-ex107filingfees2024xe.htm
</DOCUMENT> </SEC-DOCUMENT>