| Mon, Jun 29, 2009 | | | Columbia Banking System Announces Second Quarter 2009 Earnings Release Date and Conference Call PR Newswire (Mon, Jun 29)
| | | COLUMBIA BANKING SYSTEM INC Files SEC form 8-K, Other Events, Amendments to Articles of Inc. or Bylaws; Change in Fis EDGAR Online (Mon, Jun 29)
| | Fri, Jun 26, 2009 | | | Columbia Banking upgraded by Keefe Bruyette Briefing.com (Fri, Jun 26)
| | Tue, Jun 16, 2009 | | | [$$] Six Flags Loses Its Thrills as A.M. Castle Dips at The Wall Street Journal Online (Tue, Jun 16)
| | Mon, Jun 15, 2009 | | | Oil-Dri Corp of America, Columbia Banking System and Mid Penn Bancorp lead small-cap percentage losers SmallCapInvestor.com (Mon, Jun 15)
| | | Columbia Banking shares fall sharply at bizjournals.com (Mon, Jun 15)
| | | Columbia Banking System shares tumble AP (Mon, Jun 15)
| | | COLUMBIA BANKING SYSTEM INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements a EDGAR Online (Mon, Jun 15)
| | Sat, Jun 13, 2009 | | | Columbia Banking boosts Q2 loan loss provision at bizjournals.com (Sat, Jun 13)
| | Fri, Jun 12, 2009 | | | UPDATE - Columbia Banking sees Q2 loss on higher provision at Reuters (Fri, Jun 12)
| | | Columbia Banking System to Increase Loan Loss Provision for Second Quarter 2009 PR Newswire (Fri, Jun 12)
| | Mon, Jun 8, 2009 | | | Columbia Banking System to Present at Fox-Pitt Kelton Small and Mid-Cap Bank and Insurance Conference PR Newswire (Mon, Jun 8)
| | Tue, Jun 2, 2009 | | | COLUMBIA BANKING SYSTEM INC Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and E EDGAR Online (Tue, Jun 2)
| | Fri, May 15, 2009 | | | [$$] Top Picks Among Regional Banks at Barron's Online (Fri, May 15)
| | Tue, May 12, 2009 | | | COLUMBIA BANKING SYSTEM INC Financials EDGAR Online Financials (Tue, May 12)
| | Wed, May 6, 2009 | | | COLUMBIA BANKING SYSTEM INC Files SEC form 10-Q, Quarterly Report EDGAR Online (Wed, May 6)
| | Fri, Apr 24, 2009 | | | Columbia Banking System to Present at D.A. Davidson & Co. Financial Services Conference PR Newswire (Fri, Apr 24)
| | Thu, Apr 23, 2009 | | | COLUMBIA BANKING SYSTEM INC Files SEC form 8-K, Other Events, Financial Statements and Exhibits EDGAR Online (Thu, Apr 23)
| | Wed, Apr 22, 2009 | | | Columbia Banking reports tiny Q1 profit at bizjournals.com (Wed, Apr 22)
| | | Columbia Banking System Announces Earnings for First Quarter 2009 and Declares Cash Dividend PR Newswire (Wed, Apr 22)
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