|
Form
|
|
(Filer)
|
Received
(
Period
)
|
| SC 13G/A |
 |
CORPORATE OFFICE PROPERTIES TRUST (VANGUARD GROUP INC) |
02/04/10 |
| SC 13G |
|
CORPORATE OFFICE PROPERTIES TRUST(BLACKROCK INC.) |
01/29/10 |
| 424B7 |
|
CORPORATE OFFICE PROPERTIES TRUST |
01/21/10 |
| SC 13G/A |
|
CORPORATE OFFICE PROPERTIES TRUST(DIAM CO., LTD.) |
01/21/10 |
| SC 13G |
|
CORPORATE OFFICE PROPERTIES TRUST(DIAM CO., LTD.) |
01/20/10 |
| SC 13G |
|
CORPORATE OFFICE PROPERTIES TRUST(DIAM CO., LTD.) |
01/19/10 |
| 8-K |
|
CORPORATE OFFICE PROPERTIES TRUST |
12/09/09 (12/03/09) |
| 4 |
|
CORPORATE OFFICE PROPERTIES TRUST(GRIFFIN RANDALL M) |
12/03/09 (12/01/09) |
| 4 |
|
CORPORATE OFFICE PROPERTIES TRUST(GRIFFIN RANDALL M) |
12/01/09 (11/27/09) |
| SC 13G |
|
CORPORATE OFFICE PROPERTIES TRUST(DIAM CO., LTD.) |
11/12/09 |
| 4 |
|
CORPORATE OFFICE PROPERTIES TRUST(JACOBSTEIN DAVID M) |
11/10/09 (11/09/09) |
| 10-Q |
|
CORPORATE OFFICE PROPERTIES TRUST |
10/30/09 (09/30/09) |
| 8-K |
|
CORPORATE OFFICE PROPERTIES TRUST |
10/28/09 (10/28/09) |
| 3 |
|
CORPORATE OFFICE PROPERTIES TRUST(JACOBSTEIN DAVID M) |
09/01/09 (08/26/09) |
| 3 |
|
CORPORATE OFFICE PROPERTIES TRUST(SZAFRANSKI RICHARD) |
09/01/09 (08/26/09) |
| 8-K |
|
CORPORATE OFFICE PROPERTIES TRUST |
08/27/09 (08/26/09) |
| 4 |
|
CORPORATE OFFICE PROPERTIES TRUST(GRIFFIN RANDALL M) |
08/25/09 (08/24/09) |
| 4 |
|
CORPORATE OFFICE PROPERTIES TRUST(RIFFE STEPHEN EDWARD) |
08/17/09 (08/14/09) |
| 4 |
|
CORPORATE OFFICE PROPERTIES TRUST(WETHE KENNETH D) |
08/12/09 (08/10/09) |
| 4 |
|
CORPORATE OFFICE PROPERTIES TRUST(HAMLIN CLAY W III) |
08/05/09 (08/04/09) |