0001202458-12-000001.txt : 20120126 0001202458-12-000001.hdr.sgml : 20120126 20120126210145 ACCESSION NUMBER: 0001202458-12-000001 CONFORMED SUBMISSION TYPE: 5 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20111231 FILED AS OF DATE: 20120126 DATE AS OF CHANGE: 20120126 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: NELSON MARK W CENTRAL INDEX KEY: 0001202458 FILING VALUES: FORM TYPE: 5 SEC ACT: 1934 Act SEC FILE NUMBER: 000-20288 FILM NUMBER: 12548949 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: 1102 BROADWAY PLAZA CITY: TACOMA STATE: WA ZIP: 98402 BUSINESS PHONE: 2533051900 MAIL ADDRESS: STREET 1: 1102 BROADWAY PLAZA CITY: TACOMA STATE: WA ZIP: 98402 5 1 edgar.xml PRIMARY DOCUMENT X0304 5 2011-12-31 0 0 0000887343 COLUMBIA BANKING SYSTEM INC COLB 0001202458 NELSON MARK W 1301 A STREET, STE. 800 MS-3100 TACOMA WA 98402-4200 0 1 0 0 Executive Vice President Common Stock 33276 D /s/ Cathleen L. Dent 2012-01-26