<SEC-DOCUMENT>0001193125-17-141021-index.html : 20170427 <SEC-HEADER>0001193125-17-141021.hdr.sgml : 20170427 <ACCEPTANCE-DATETIME>20170427080503 ACCESSION NUMBER: 0001193125-17-141021 CONFORMED SUBMISSION TYPE: 425 PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20170427 DATE AS OF CHANGE: 20170427 SUBJECT COMPANY: 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: 425 SEC ACT: 1934 Act SEC FILE NUMBER: 000-20288 FILM NUMBER: 17786312 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 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: PACIFIC CONTINENTAL CORP CENTRAL INDEX KEY: 0001084717 STANDARD INDUSTRIAL CLASSIFICATION: NATIONAL COMMERCIAL BANKS [6021] IRS NUMBER: 930606433 STATE OF INCORPORATION: OR FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 425 BUSINESS ADDRESS: STREET 1: 111 WEST 7TH ST CITY: EUGENE STATE: OR ZIP: 97401 BUSINESS PHONE: 5416868685 MAIL ADDRESS: STREET 1: 111 WEST 7TH ST CITY: EUGENE STATE: OR ZIP: 97401 </SEC-HEADER> <DOCUMENT> <TYPE>425 <SEQUENCE>1 <FILENAME>d385276d8k.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: d385276d8k.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>d385276dex991.htm <DESCRIPTION>EX-99.1 <TEXT> Document 2 - file: d385276dex991.htm
</DOCUMENT> </SEC-DOCUMENT>