COLB Related SEC Filings

May 8, 2013 05:30 PM Form 4 COLUMBIA BANKING SYSTEM For: May 06 Filed by: HULBERT TOM

May 7, 2013 06:01 AM Form 10-Q COLUMBIA BANKING SYSTEM For: Mar 31

May 1, 2013 04:56 PM Form 4 COLUMBIA BANKING SYSTEM For: Apr 29 Filed by: HULBERT TOM

Apr 30, 2013 11:44 AM Form 4 COLUMBIA BANKING SYSTEM For: Apr 01 Filed by: Dietzler David A

Apr 26, 2013 02:38 PM Form 8-K COLUMBIA BANKING SYSTEM For: Apr 23

Apr 25, 2013 06:02 AM Form 8-K COLUMBIA BANKING SYSTEM For: Apr 24

Apr 5, 2013 02:33 PM Form 8-K COLUMBIA BANKING SYSTEM For: Apr 04