<SEC-DOCUMENT>0000887343-17-000134-index.html : 20170703 <SEC-HEADER>0000887343-17-000134.hdr.sgml : 20170703 <ACCEPTANCE-DATETIME>20170703171322 ACCESSION NUMBER: 0000887343-17-000134 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20170703 FILED AS OF DATE: 20170703 DATE AS OF CHANGE: 20170703 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 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: 17945827 MAIL ADDRESS: STREET 1: 1301 "A" STREET STREET 2: SUITE 800 CITY: TACOMA STATE: WA ZIP: 98402 </SEC-HEADER> <DOCUMENT> <TYPE>4 <SEQUENCE>1 <FILENAME>wf-form4_149911638849894.xml <DESCRIPTION>FORM 4 <TEXT> Document 1 - file: wf-form4_149911638849894.html
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