<SEC-DOCUMENT>0000887343-21-000052-index.html : 20210224 <SEC-HEADER>0000887343-21-000052.hdr.sgml : 20210224 <ACCEPTANCE-DATETIME>20210224174910 ACCESSION NUMBER: 0000887343-21-000052 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20210222 FILED AS OF DATE: 20210224 DATE AS OF CHANGE: 20210224 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: BARUFFI KUMI YAMAMOTO CENTRAL INDEX KEY: 0001619728 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-20288 FILM NUMBER: 21675195 MAIL ADDRESS: STREET 1: 1301 "A" STREET STREET 2: SUITE 800 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_161420693198730.xml <DESCRIPTION>FORM 4 <TEXT> Document 1 - file: wf-form4_161420693198730.html
Document 1 - RAW XML: wf-form4_161420693198730.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-24 <SEQUENCE>2 <FILENAME>ex-24.htm <DESCRIPTION>POA K BARUFFI 2020 <TEXT> Document 2 - file: ex-24.htm
</DOCUMENT> </SEC-DOCUMENT>