<SEC-DOCUMENT>0001193125-17-218508-index.html : 20170629 <SEC-HEADER>0001193125-17-218508.hdr.sgml : 20170629 <ACCEPTANCE-DATETIME>20170629171756 ACCESSION NUMBER: 0001193125-17-218508 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 4 CONFORMED PERIOD OF REPORT: 20170628 ITEM INFORMATION: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers ITEM INFORMATION: Regulation FD Disclosure ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20170629 DATE AS OF CHANGE: 20170629 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: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 000-20288 FILM NUMBER: 17939518 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>8-K <SEQUENCE>1 <FILENAME>d403268d8k.htm <DESCRIPTION>FORM 8-K <TEXT> Document 1 - file: d403268d8k.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-10.1 <SEQUENCE>2 <FILENAME>d403268dex101.htm <DESCRIPTION>EX-10.1 <TEXT> Document 2 - file: d403268dex101.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>3 <FILENAME>d403268dex991.htm <DESCRIPTION>EX-99.1 <TEXT> Document 3 - file: d403268dex991.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>g403268ex991logo.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: g403268ex991logo.jpg
</DOCUMENT> </SEC-DOCUMENT>