$COLB SEC Filings

Filing Filed On
FORM 8-K 30 Apr 2010
FORM S-3MEF 29 Apr 2010
FORM 8-K 28 Apr 2010
PRELIMINARY PROSPECTUS SUPPLEMENT 28 Apr 2010
FORM 8-K 28 Apr 2010
EFFECT 19 Apr 2010
FORM S-3 13 Apr 2010
FORM 8KA 09 Apr 2010
DEFINITIVE PROXY STATEMENT 22 Mar 2010
PRIMARY DOCUMENT 18 Mar 2010
FORM 10-K 04 Mar 2010
COLUMBIA BANKING SYSTEM, INC. 12 Feb 2010
SCHEDULE 13G 08 Feb 2010
SC 13G 05 Feb 2010
CURRENT REPORT ON FORM 8-K 04 Feb 2010
FORM 8-K 02 Feb 2010
SC 13G 29 Jan 2010
FORM 8-K 28 Jan 2010
8-K 28 Jan 2010
PRIMARY DOCUMENT 15 Jan 2010