<SEC-DOCUMENT>0001193125-17-122004-index.html : 20170413 <SEC-HEADER>0001193125-17-122004.hdr.sgml : 20170413 <ACCEPTANCE-DATETIME>20170413061203 ACCESSION NUMBER: 0001193125-17-122004 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 11 FILED AS OF DATE: 20170413 DATE AS OF CHANGE: 20170413 EFFECTIVENESS DATE: 20170413 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: DEFA14A SEC ACT: 1934 Act SEC FILE NUMBER: 000-20288 FILM NUMBER: 17759245 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 </SEC-HEADER> <DOCUMENT> <TYPE>DEFA14A <SEQUENCE>1 <FILENAME>d358049ddefa14a.htm <DESCRIPTION>DEFA14A <TEXT> Document 1 - file: d358049ddefa14a.htm
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