COLUMBIA BANCORP \OR\

Q: Sep 30 2009

Q: Jun 30 2009

Q: Mar 31 2009

FY: Dec 31 2008

FY: Dec 31 2008

Q: Sep 30 2008

Q: Jun 30 2008

Q: Mar 31 2008

FY: Dec 31 2007

Q: Sep 30 2007

Q: Jun 30 2007

Q: Mar 31 2007

FY: Dec 31 2006

Q: Sep 30 2006

Q: Jun 30 2006

Q: Mar 31 2006

FY: Dec 31 2005

Q: Sep 30 2005

Q: Jun 30 2005

FY: Dec 31 2004

1.01,9.01

1.01,9.01

4.01,9.01

1.03,3.01,5.02,8.01,9.01

5.02

Results of Operations and Financial Condition

2.02,9.01

Results of Operations and Financial Condition

7.01,9.01

5.02,9.01

1.01,7.01,9.01

2.02,9.01

2.02,9.01

Results of Operations and Financial Condition

5.02

5.02

1.01,5.02

1.01,5.02,9.01

5.05,9.01

2.01,9.01

Certification of termination of registration of a class of securities (Section 12(g))

Notification of removal from listing and/or registration on a national securities exchange

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement with Pricing Information

Amended Initial Registration Statement

Registration (IPO) statement under Securities Act of 1933

Preliminary Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

BEARDSLEY CHARLES F

BOOTH WILLIAM A

COCHRAN TERRY L

MITCHELL DONALD T

WELLINGTON MANAGEMENT CO LLP

Terrebonne Investors (Bermuda) L.P.

BETZ RICHARD E

CARVER DENNIS

BEARDSLEY CHARLES F

COCHRAN TERRY L

TODA FRANK K.

BEARDSLEY CHARLES F

COBURN STACI L

BEARDSLEY CHARLES F

COCHRAN TERRY L

BETZ RICHARD E

TODA FRANK K.

BEARDSLEY CHARLES F

TODA FRANK K.

COBURN STACI L