<SEC-DOCUMENT>0000000000-21-009726-index.html : 20210915 <SEC-HEADER>0000000000-21-009726.hdr.sgml : 20210915 <ACCEPTANCE-DATETIME>20210809143004 <PRIVATE-TO-PUBLIC> ACCESSION NUMBER: 0000000000-21-009726 CONFORMED SUBMISSION TYPE: UPLOAD PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20210809 FILED FOR: 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: UPLOAD 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>LETTER <SEQUENCE>1 <FILENAME>filename1.pdf <TEXT> Document 1 - file: filename1.pdf
</DOCUMENT> <DOCUMENT> <TYPE>TEXT-EXTRACT <SEQUENCE>2 <FILENAME>filename2.txt <TEXT> Document 2 - file: filename2.txt
</DOCUMENT> </SEC-DOCUMENT>