DEFINITIVE PROXY STATEMENT FOR COLUMBIA BANKING SYSTEM, INC.

Company

COLUMBIA BANKING SYSTEM, INC.

Filed

March 25, 2005

Period of Report

April 27, 2005

Accession Number

0001193125-05-060908

A DEF 14A is a proxy statement sent to shareholders before an annual meeting. It covers executive compensation, board elections, and shareholder votes. Learn more about DEF 14A filings →