0001209191-14-039952.txt : 20140624 0001209191-14-039952.hdr.sgml : 20140624 20140609173452 ACCESSION NUMBER: 0001209191-14-039952 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20140530 FILED AS OF DATE: 20140609 DATE AS OF CHANGE: 20140609 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: Seaton Betsy Whitehead CENTRAL INDEX KEY: 0001610217 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 000-20288 FILM NUMBER: 14900092 MAIL ADDRESS: STREET 1: 1301 "A" STREET STREET 2: SUITE 800 CITY: TACOMA STATE: WA ZIP: 98402 3 1 doc3.xml FORM 3 SUBMISSION X0206 3 2014-05-30 1 0000887343 COLUMBIA BANKING SYSTEM INC COLB 0001610217 Seaton Betsy Whitehead 1301 A STREET, SUITE 900 TACOMA WA 98402 1 0 0 0 By: /s/ Cathleen Dent, on behalf of Betsy Seaton 2014-06-09 EX-24 2 attachment1.htm EX-24 DOCUMENT

POWER OF ATTORNEY / CONFORMING STATEMENT

This Statement confirms that the undersigned has authorized and designated
Melanie J. Dressel, Cathleen Dent, and Marita Robbins, each with the full power
to act alone, to execute and file on the undersigned's behalf, all Forms 3, 4
and 5 (including any amendments thereto) that the undersigned may be required to
file with the U. S. Securities and Exchange Commission as a result of the
undersigned's ownership of or transactions in securities of Columbia Banking
System, Inc.  The authority of Melanie J. Dressel, Cathleen Dent, and Marita
Robbins under this Statement shall continue until the undersigned is no longer
required to file Forms 3, 4 and 5 with regard to her ownership of or
transactions in securities of Columbia Banking System, Inc., unless earlier
revoked in writing.  The undersigned acknowledges that none of Columbia Banking
System, Inc., Melanie J. Dressel, Cathleen Dent, or Marita Robbins is assuming
any of the undersigned's responsibilities to comply with Section 16 of the
Securities and Exchange Act of 1934.

Signature:  /s/ Betsy Whitehead Seaton
            --------------------------
            Betsy Whitehead Seaton

Subscribed and sworn to before me this 5th day of June, 2014.
/s/ Ryan Y. Rehberg
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Notary Public