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Friday, November 27, 2009, 9:06PM ET - U.S. Markets closed early today. Dow Down 1.48% Nasdaq Down 1.73%
Corporate Office Properties Trust Inc. (OFC)At 1:01PM ET: 33.05  Down 0.83 (2.45%)  
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Insider TransactionsGet Insider Transactions for:
NET SHARE PURCHASE ACTIVITY
Insider Purchases - Last 6 Months
 SharesTrans
PurchasesN/A0
Sales771,5328
Net Shares Purchased
(Sold)
(771,532)8
Total Insider Shares Held1.39M N/A
% Net Shares Purchased
(Sold)
(35.7%) N/A
Net Institutional Purchases - Prior Qtr to Latest Qtr
 Shares
Net Shares Purchased (Sold)(3,963,330)
% Change in Institutional Shares Held(7.1%)
Data provided by Thomson Financial

INSIDER TRANSACTIONS REPORTED - LAST TWO YEARS
DateInsiderSharesTypeTransactionValue*
9-Nov-09JACOBSTEIN DAVID M
Director
500DirectPurchase at $34.17 per share.$17,085
26-Aug-09JACOBSTEIN DAVID M
Director
N/ADirectStatement of OwnershipN/A
26-Aug-09SZAFRANSKI RICHARD
Director
N/ADirectStatement of OwnershipN/A
24-Aug-09GRIFFIN RANDALL M
Officer
31,932DirectOption Exercise at $7.63 - $9.75 per share.N/A
24-Aug-09GRIFFIN RANDALL M
Officer
31,932DirectSale at $38.14 per share.$1,217,886
14-Aug-09RIFFE STEPHEN EDWARD
Officer
2,535DirectDisposition (Non Open Market) N/A
12-Aug-09WETHE KENNETH D
Director
2,400DirectOption Exercise at $26.94 per share.$64,656
12-Aug-09WETHE KENNETH D
Director
2,200DirectSale at $37.02 per share.$81,444
11-Aug-09WETHE KENNETH D
Director
1,400DirectOption Exercise at $26.94 per share.$37,716
11-Aug-09WETHE KENNETH D
Director
1,333DirectSale at $37 per share.$49,321
10-Aug-09WETHE KENNETH D
Director
1,200DirectOption Exercise at $26.94 per share.$32,328
10-Aug-09WETHE KENNETH D
Director
1,067DirectSale at $37 per share.$39,479
5-Aug-09HAMLIN CLAY W III
Director
15,000IndirectSale at $35.30 per share.$529,500
4-Aug-09GRIFFIN RANDALL M
Officer
106,700DirectOption Exercise at $7.38 per share.$787,446
4-Aug-09GRIFFIN RANDALL M
Officer
106,700DirectSale at $33.90 per share.$3,617,130
4-Aug-09HAMLIN CLAY W III
Director
285,000IndirectSale at $35.38 per share.$10,083,300
3-Aug-09GRIFFIN RANDALL M
Officer
53,300DirectOption Exercise at $7.38 per share.$393,354
3-Aug-09GRIFFIN RANDALL M
Officer
53,300DirectSale at $33.86 per share.$1,804,738
12-Jun-09GRIFFIN RANDALL M
Officer
50,000DirectOption Exercise at $7.38 per share.$369,000
12-Jun-09GRIFFIN RANDALL M
Officer
50,000DirectSale at $30.23 per share.$1,511,500
12-Jun-09HAMLIN CLAY W III
Director
300,000DirectAcquisition (Non Open Market) N/A
12-Jun-09HAMLIN CLAY W III
Director
300,000DirectDisposition (Non Open Market) N/A
5-Jun-09WAESCHE ROGER A JR
Officer
15,000DirectOption Exercise at $9.75 per share.$146,250
5-Jun-09WAESCHE ROGER A JR
Officer
15,000DirectSale at $31.80 per share.$477,000
2-Jun-09HAMLIN CLAY W III
Director
85,147DirectSale at $31.09 per share.$2,647,220
1-Jun-09HAMLIN CLAY W III
Director
114,853DirectSale at $30.86 per share.$3,544,363
1-Jun-09HAMLIN CLAY W III
Director
200,000DirectAcquisition (Non Open Market) N/A
1-Jun-09HAMLIN CLAY W III
Director
200,000DirectDisposition (Non Open Market) N/A
18-May-09DENTON ROBERT L
Director
10,000DirectSale at $29.37 per share.$293,700
18-May-09DENTON ROBERT L
Director
10,000DirectAcquisition (Non Open Market) N/A
18-May-09DENTON ROBERT L
Director
10,000DirectDisposition (Non Open Market) N/A
13-Mar-09HAMLIN CLAY W III
Director
29,900DirectSale at $23.94 per share.$715,806
13-Mar-09HAMLIN CLAY W III
Director
29,900IndirectAcquisition (Non Open Market) N/A
13-Mar-09HAMLIN CLAY W III
Director
29,900IndirectDisposition (Non Open Market) N/A
13-Mar-09SHIDLER JAY H
Director
565,685DirectSale at $23.52 per share.$13,304,911
12-Mar-09HAMLIN CLAY W III
Director
5,000DirectSale at $23.73 per share.$118,650
12-Mar-09HAMLIN CLAY W III
Director
241,500IndirectSale at $23.98 per share.$5,791,170
12-Mar-09HAMLIN CLAY W III
Director
241,500IndirectAcquisition (Non Open Market) N/A
12-Mar-09HAMLIN CLAY W III
Director
241,500IndirectDisposition (Non Open Market) N/A
12-Mar-09SHIDLER JAY H
Director
233,800IndirectSale at $24.11 per share.$5,636,918
11-Mar-09HAMLIN CLAY W III
Director
133,600IndirectSale at $23.30 - $23.55 per share.$3,130,0002
11-Mar-09HAMLIN CLAY W III
Director
128,600IndirectAcquisition (Non Open Market) N/A
11-Mar-09HAMLIN CLAY W III
Director
128,600IndirectDisposition (Non Open Market) N/A
9-Mar-09GRIFFIN RANDALL M
Officer
4,398DirectDisposition (Non Open Market) N/A
9-Mar-09WAESCHE ROGER A JR
Officer
1,636DirectDisposition (Non Open Market) N/A
9-Mar-09SINGER KAREN M
Officer
292DirectDisposition (Non Open Market) N/A
6-Mar-09KESLER STEVEN D
Director
5,000DirectOption Exercise at $8.81 per share.$44,050
6-Mar-09KESLER STEVEN D
Director
1,000DirectSale at $21.11 per share.$21,110
5-Mar-09SHIDLER JAY H
Director
515IndirectSale at $23.05 per share.$11,870
4-Mar-09SHIDLER JAY H
Director
363,209IndirectSale at $23.28 per share.$8,455,505
4-Mar-09HAMLIN CLAY W III
Director
175,000DirectSale at $23.18 per share.$4,056,500
4-Mar-09HAMLIN CLAY W III
Director
175,000DirectAcquisition (Non Open Market) N/A
4-Mar-09HAMLIN CLAY W III
Director
175,000DirectDisposition (Non Open Market) N/A
3-Mar-09FIRSTENBERG DOUGLAS M
Director
1,500DirectPurchase at $22.86 per share.$34,290
3-Mar-09SHIDLER JAY H
Director
436,761IndirectSale at $23.32 per share.$10,185,266
3-Mar-09SHIDLER JAY H
Director
1,600,000IndirectAcquisition (Non Open Market) at $0 per share.N/A
3-Mar-09SHIDLER JAY H
Director
1,600,000IndirectDisposition (Non Open Market) at $0 per share.N/A
3-Mar-09HAMLIN CLAY W III
Director
100,000DirectSale at $22.99 per share.$2,299,000
3-Mar-09HAMLIN CLAY W III
Director
100,000DirectAcquisition (Non Open Market) N/A
3-Mar-09HAMLIN CLAY W III
Director
100,000DirectDisposition (Non Open Market) N/A
2-Mar-09SINGER KAREN M
Officer
2,472DirectDisposition (Non Open Market) N/A
2-Mar-09GRIFFIN RANDALL M
Officer
13,953DirectDisposition (Non Open Market) N/A
2-Mar-09RIFFE STEPHEN EDWARD
Officer
2,239DirectDisposition (Non Open Market) N/A
2-Mar-09WAESCHE ROGER A JR
Officer
6,287DirectDisposition (Non Open Market) N/A
2-Mar-09DENTON ROBERT L
Director
10,000DirectSale at $24.42 per share.$244,200
2-Mar-09DENTON ROBERT L
Director
10,000DirectAcquisition (Non Open Market) N/A
2-Mar-09DENTON ROBERT L
Director
10,000DirectDisposition (Non Open Market) N/A
2-Mar-09HAMLIN CLAY W III
Director
25,000DirectSale at $23.83 per share.$595,750
2-Mar-09HAMLIN CLAY W III
Director
25,000DirectAcquisition (Non Open Market) N/A
2-Mar-09HAMLIN CLAY W III
Director
25,000DirectDisposition (Non Open Market) N/A
26-Feb-09LINGAFELTER WAYNE
Officer
3,925DirectAcquisition (Non Open Market) N/A
26-Feb-09WAESCHE ROGER A JR
Officer
52,092DirectAcquisition (Non Open Market) N/A
26-Feb-09WAESCHE ROGER A JR
Officer
1,441DirectDisposition (Non Open Market) N/A
26-Feb-09SINGER KAREN M
Officer
20,532DirectAcquisition (Non Open Market) N/A
26-Feb-09GRIFFIN RANDALL M
Officer
78,217DirectAcquisition (Non Open Market) N/A
26-Feb-09GRIFFIN RANDALL M
Officer
3,282DirectDisposition (Non Open Market) N/A
26-Feb-09RIFFE STEPHEN EDWARD
Officer
29,449DirectAcquisition (Non Open Market) N/A
25-Feb-09WAESCHE ROGER A JR
Officer
1,934DirectDisposition (Non Open Market) N/A
25-Feb-09SINGER KAREN M
Officer
278DirectDisposition (Non Open Market) N/A
25-Feb-09GRIFFIN RANDALL M
Officer
3,260DirectDisposition (Non Open Market) N/A
17-Feb-09SHIDLER JAY H
Director
35,263DirectSale at $24 per share.$846,312
2-Feb-09SINGER KAREN M
Officer
221DirectDisposition (Non Open Market) N/A
5-Jan-09LINGAFELTER WAYNE
Officer
20,000DirectStatement of OwnershipN/A
12-Dec-08WETHE KENNETH D
Director
1,500DirectSale at $27.91 per share.$41,865
10-Dec-08GRIFFIN RANDALL M
Officer
2,000DirectDisposition (Non Open Market) at $0 per share.N/A
9-Dec-08GRIFFIN RANDALL M
Officer
20,000DirectOption Exercise at $9.25 per share.$185,000
9-Dec-08GRIFFIN RANDALL M
Officer
20,000DirectSale at $30.21 per share.$604,200
5-Dec-08SWEET KENNETH S
Director
5,000DirectPurchase at $24.87 per share.$124,350
11-Nov-08FIRSTENBERG DOUGLAS M
Director
2,500DirectPurchase at $24.40 per share.$61,000
11-Aug-08DENTON ROBERT L
Director
15,000DirectSale at $40.30 per share.$604,500
11-Aug-08DENTON ROBERT L
Director
15,000DirectAcquisition (Non Open Market) N/A
11-Aug-08DENTON ROBERT L
Director
15,000DirectDisposition (Non Open Market) N/A
1-Aug-08KESLER STEVEN D
Director
5,000DirectOption Exercise at $8 per share.$40,000
1-Aug-08KESLER STEVEN D
Director
5,000DirectSale at $38.79 per share.$193,950
20-May-08WAESCHE ROGER A JR
Officer
25,000DirectOption Exercise at $9.75 per share.$243,750
20-May-08WAESCHE ROGER A JR
Officer
25,000DirectSale at $38.23 per share.$955,749
15-May-08WAESCHE ROGER A JR
Officer
645DirectDisposition (Non Open Market) N/A
15-May-08GRIFFIN RANDALL M
Officer
1,626DirectDisposition (Non Open Market) N/A
12-May-08GRIFFIN RANDALL M
Officer
25,300DirectOption Exercise at $9.25 per share.$234,025
12-May-08GRIFFIN RANDALL M
Officer
25,300DirectSale at $39.03 per share.$987,459
12-Mar-08WETHE KENNETH D
Director
2,000DirectSale at $31.94 per share.$63,880
10-Mar-08WAESCHE ROGER A JR
Officer
1,125DirectDisposition (Non Open Market) N/A
10-Mar-08GRIFFIN RANDALL M
Officer
3,031DirectDisposition (Non Open Market) N/A
3-Mar-08WAESCHE ROGER A JR
Officer
1,588DirectDisposition (Non Open Market) N/A
3-Mar-08SINGER KAREN M
Officer
871DirectDisposition (Non Open Market) N/A
3-Mar-08GRIFFIN RANDALL M
Officer
3,534DirectDisposition (Non Open Market) N/A
28-Feb-08SINGER KAREN M
Officer
13,364DirectAcquisition (Non Open Market) N/A
28-Feb-08RIFFE STEPHEN EDWARD
Officer
47,145DirectAcquisition (Non Open Market) N/A
26-Feb-08WAESCHE ROGER A JR
Officer
1,293DirectDisposition (Non Open Market) N/A
26-Feb-08GRIFFIN RANDALL M
Officer
2,304DirectDisposition (Non Open Market) N/A
25-Feb-08WAESCHE ROGER A JR
Officer
1,726DirectDisposition (Non Open Market) N/A
25-Feb-08GRIFFIN RANDALL M
Officer
2,901DirectDisposition (Non Open Market) N/A
25-Feb-08SINGER KAREN M
Officer
220DirectDisposition (Non Open Market) N/A
31-Jan-08SINGER KAREN M
Officer
673DirectDisposition (Non Open Market) N/A
14-Dec-07TAYLOR DWIGHT S
Other
400DirectAcquisition (Non Open Market) at $32.94 per share.$13,176
12-Dec-07SINGER KAREN M
Officer
90DirectAcquisition (Non Open Market) at $35.17 per share.$3,165
11-Dec-07WETHE KENNETH D
Director
1,000DirectSale at $37 per share.$37,000
Data provided by EDGAR Online
* = Where indicated, some values are estimates.
1 = Potential proceeds estimated by the filer.
2 = Estimated based on the average of multiple prices reported.
3 = Multiple dates reported. Most recent date shown.
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