| Date | Event |
| 16-Nov-09 | COLUMBIA BANCORP \OR\ Files SEC form 8-K, Results of Operations and Financial Condition |
| 16-Nov-09 | COLUMBIA BANCORP \OR\ Files SEC form 10-Q, Quarterly Report |
| 18-Sep-09 | Price hit new 52-week high ($3.44) |
| 10-Aug-09 | COLUMBIA BANCORP \OR\ Files SEC form 8-K, Results of Operations and Financial Condition |
| 10-Aug-09 | COLUMBIA BANCORP \OR\ Files SEC form 10-Q, Quarterly Report |
| 11-May-09 | COLUMBIA BANCORP \OR\ Files SEC form 10-Q, Quarterly Report |
| 30-Apr-09 | COLUMBIA BANCORP \OR\ Files SEC form 8-K, Results of Operations and Financial Condition |
| 26-Mar-09 | COLUMBIA BANCORP \OR\ Files SEC form 10-K, Annual Report |
| 19-Mar-09 | COLUMBIA BANCORP \OR\ Files SEC form 8-K, Regulation FD Disclosure |
| 16-Mar-09 | COLUMBIA BANCORP \OR\ Files SEC form 8-K, Financial Statements and Exhibits |
| 5-Mar-09 | Price hit new 52-week low ($0.49) |
| 4-Mar-09 | Price hit new 52-week low ($0.50) |
| 3-Mar-09 | Price hit new 52-week low ($0.51) |
| 13-Feb-09 | COLUMBIA BANCORP \OR\ Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibi |
| 30-Jan-09 | COLUMBIA BANCORP \OR\ Files SEC form 8-K, Results of Operations and Financial Condition |
| 10-Nov-08 | COLUMBIA BANCORP \OR\ Files SEC form 10-Q, Quarterly Report |
| 3-Nov-08 | COLUMBIA BANCORP \OR\ Files SEC form 8-K/A, Results of Operations and Financial Condition |
| 31-Oct-08 | COLUMBIA BANCORP \OR\ Files SEC form 8-K, Change in Directors or Principal Officers |