<SEC-DOCUMENT>0000887343-21-000023-index.html : 20210217 <SEC-HEADER>0000887343-21-000023.hdr.sgml : 20210217 <ACCEPTANCE-DATETIME>20210217121924 ACCESSION NUMBER: 0000887343-21-000023 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 3 CONFORMED PERIOD OF REPORT: 20210215 FILED AS OF DATE: 20210217 DATE AS OF CHANGE: 20210217 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Lakely Brock CENTRAL INDEX KEY: 0001740374 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-20288 FILM NUMBER: 21643553 MAIL ADDRESS: STREET 1: 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] IRS NUMBER: 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>wf-form4_161358235146930.xml <DESCRIPTION>FORM 4 <TEXT> Document 1 - file: wf-form4_161358235146930.html
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</DOCUMENT> <DOCUMENT> <TYPE>EX-24 <SEQUENCE>2 <FILENAME>powerofattorneyformblakely.htm <DESCRIPTION>POA LAKELY 6 1 2018 <TEXT> Document 2 - file: powerofattorneyformblakely.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-24 <SEQUENCE>3 <FILENAME>ex-24.htm <DESCRIPTION>POA LAKELY 6 1 2018 <TEXT> Document 3 - file: ex-24.htm
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