Insider Trading activities of Corporate Office Properties Trust insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Corporate Office Properties Trust since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Corporate Office Properties Trust since year 2005. Table 2 shows the detailed insider transactions of Corporate Office Properties Trust since 2005. The reporting company's ticker symbol is OFC. The reporting company's CIK number is 860546.
The total value of stock buying since 2005 is $946,550.
The total value of stock sales since 2005 is $165,992,123.
The total value of stock option exercises since 2005 is $20,751,591.


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Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Corporate Office Properties Trust (OFC).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2017-06 0 $0 5,637 $197,765 2,000 $0
2017-05 0 $0 11,236 $374,146 5,000 $149,900
2017-03 0 $0 3,555 $120,941 0 $0
2017-02 0 $0 10,000 $328,380 10,000 $0
2016-11 0 $0 4,000 $110,872 0 $0
2016-08 0 $0 3,924 $113,544 2,000 $0
2016-06 0 $0 3,585 $97,941 0 $0
2016-05 0 $0 3,007 $80,590 0 $0
2016-03 0 $0 2,183 $56,657 0 $0
2016-02 0 $0 2,000 $44,460 0 $0
2015-11 0 $0 7,500 $161,625 0 $0
2015-06 0 $0 3,600 $89,542 0 $0
2015-05 0 $0 3,097 $81,884 0 $0
2015-03 0 $0 5,000 $147,365 5,000 $134,700
2015-02 0 $0 8,000 $239,161 8,000 $0
2014-12 0 $0 3,000 $83,388 3,000 $0
2014-09 0 $0 5,000 $145,225 5,000 $134,650
2014-08 0 $0 8,400 $236,918 2,500 $0
2014-06 0 $0 1,593 $44,476 0 $0
2014-05 0 $0 3,865 $103,284 0 $0
2014-04 0 $0 10,000 $270,000 10,000 $0
2014-03 0 $0 25,904 $697,994 27,000 $196,500
2014-02 0 $0 30,000 $810,017 30,000 $0
2013-12 20,000 $441,820 0 $0 0 $0
2013-09 0 $0 10,000 $234,057 10,000 $0
2013-07 0 $0 10,000 $262,950 10,000 $0
2013-06 0 $0 10,000 $265,610 10,000 $0
2013-05 0 $0 13,525 $391,840 10,000 $0
2013-04 0 $0 10,000 $284,990 10,000 $0
2013-03 0 $0 18,500 $478,796 10,000 $0
2013-02 0 $0 25,000 $664,630 15,000 $81,000
2013-01 0 $0 210,000 $5,663,856 210,000 $0
2012-12 0 $0 115,400 $2,835,677 114,000 $0
2012-11 0 $0 10,000 $242,780 10,000 $0
2012-10 0 $0 10,000 $241,170 10,000 $0
2012-09 0 $0 38,600 $927,683 35,000 $81,000
2012-08 0 $0 5,000 $113,750 5,000 $0
2012-07 0 $0 5,000 $116,945 5,000 $0
2012-06 0 $0 5,000 $113,945 5,000 $0
2012-05 0 $0 17,000 $401,860 15,000 $67,000
2012-04 0 $0 5,000 $115,850 5,000 $0
2012-03 0 $0 10,000 $245,170 10,000 $0
2012-02 0 $0 10,000 $246,600 10,000 $0
2012-01 0 $0 10,000 $234,230 10,000 $0
2011-12 0 $0 2,000 $43,216 0 $0
2011-10 0 $0 15,000 $366,375 13,000 $0
2011-07 0 $0 32,461 $1,037,452 32,461 $0
2011-06 8,500 $268,021 0 $0 0 $0
2011-05 0 $0 151,568 $5,188,000 143,068 $1,785,946
2011-03 0 $0 7,500 $258,975 12,500 $204,950
2011-02 0 $0 2,000 $68,934 0 $0
2010-09 0 $0 49,000 $1,854,614 39,000 $570,880
2010-08 0 $0 50,000 $1,810,000 50,000 $622,500
2010-06 0 $0 0 $0 25,000 $530,750
2010-04 0 $0 150,000 $6,397,499 150,000 $0
2010-03 0 $0 300,000 $12,043,848 300,000 $0
2010-02 0 $0 7,000 $257,197 0 $0
2009-12 0 $0 50,000 $1,764,883 50,000 $495,000
2009-11 500 $17,084 0 $0 0 $0
2009-08 0 $0 496,532 $17,422,734 196,932 $1,592,124
2009-06 0 $0 265,000 $8,179,177 65,000 $515,000
2009-05 0 $0 10,000 $293,690 0 $0
2009-03 1,500 $34,288 2,320,970 $54,540,958 5,000 $44,050
2009-02 0 $0 35,263 $846,312 0 $0
2008-12 5,000 $124,350 21,500 $646,065 20,000 $185,000
2008-11 2,500 $60,987 0 $0 0 $0
2008-08 0 $0 20,000 $798,510 5,000 $40,000
2008-05 0 $0 50,300 $1,943,208 50,300 $477,775
2008-03 0 $0 2,000 $63,880 0 $0
2007-12 0 $0 1,000 $37,000 0 $0
2007-09 0 $0 5,000 $204,549 5,000 $59,349
2007-06 0 $0 2,000 $87,180 2,500 $30,625
2007-05 0 $0 50,000 $2,306,500 50,000 $495,000
2007-03 0 $0 5,000 $243,100 57,500 $562,036
2007-02 0 $0 249,000 $13,358,382 459,400 $8,761,503
2006-08 0 $0 289,000 $13,524,469 289,000 $2,428,319
2006-06 0 $0 4,000 $167,760 5,000 $81,000
2006-03 0 $0 5,000 $208,350 5,000 $47,699
2006-02 0 $0 31,500 $1,310,742 32,500 $377,335

Table 2. Detailed insider stock purchases, sales, and option exercises of Corporate Office Properties Trust insiders (OFC)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2017-06-20 Kesler Steven D Sale 3,637 35.40 128,749
2017-06-07 Denton Robert L Sale 2,000 34.51 69,016
2017-06-06 Denton Robert L Option Ex 2,000 .00 0
2017-05-19 Jacobstein David M Sale 3,118 33.54 104,574
2017-05-18 Denton Robert L Sale 3,118 32.73 102,042
2017-05-02 Denton Robert L Sale 5,000 33.51 167,530
2017-05-02 Denton Robert L Option Ex 5,000 29.98 149,900
2017-03-01 Thor Greg J (SVP--CAO & Controller) Sale 3,555 34.02 120,941
2017-02-14 Denton Robert L Sale 10,000 32.84 328,380
2017-02-07 Denton Robert L Option Ex 10,000 .00 0
2016-11-10 Kesler Steven D Sale 4,000 27.72 110,872
2016-08-26 Jacobstein David M Sale 1,924 28.36 54,568
2016-08-04 Denton Robert L Sale 2,000 29.49 58,976
2016-08-02 Denton Robert L Option Ex 2,000 .00 0
2016-06-09 Thor Greg J (SVP--CAO & Controller) Sale 2,085 27.56 57,456
2016-06-01 Jacobstein David M Sale 1,500 26.99 40,485
2016-05-09 Denton Robert L Sale 3,007 26.80 80,590
2016-03-17 Thor Greg J (SVP--CAO & Controller) Sale 2,183 25.95 56,657
2016-02-17 Jacobstein David M Sale 2,000 22.23 44,460
2015-11-17 Singer Karen M (SVP, General Counsel & Sec) Sale 7,500 21.55 161,625
2015-06-10 Jacobstein David M Sale 3,600 24.87 89,542
2015-05-14 Denton Robert L Sale 3,097 26.44 81,884
2015-03-16 Kesler Steven D Sale 5,000 29.47 147,365
2015-03-16 Kesler Steven D Option Ex 5,000 26.94 134,700
2015-02-20 Denton Robert L Sale 3,000 29.86 89,571
2015-02-19 Denton Robert L Sale 5,000 29.92 149,590
2015-02-19 Denton Robert L Option Ex 8,000 .00 0
2014-12-16 Denton Robert L Sale 3,000 27.80 83,388
2014-12-16 Denton Robert L Option Ex 3,000 .00 0
2014-09-08 Brady Thomas F Sale 5,000 29.05 145,225
2014-09-08 Brady Thomas F Option Ex 5,000 26.93 134,650
2014-08-19 Denton Robert L Sale 2,500 28.27 70,680
2014-08-19 Denton Robert L Option Ex 2,500 .00 0
2014-08-13 Jacobstein David M Sale 5,900 28.18 166,238
2014-06-02 Thor Greg J (SVP--CAO & Controller) Sale 1,593 27.92 44,476
2014-05-09 Denton Robert L Sale 2,865 26.70 76,495
2014-05-02 Thor Greg J (SVP--CAO & Controller) Sale 1,000 26.79 26,789
2014-04-04 Hamlin Clay W Iii Sale 10,000 27.00 270,000
2014-04-04 Hamlin Clay W Iii Option Ex 10,000 .00 0
2014-03-05 Thor Greg J (SVP--CAO & Controller) Sale 2,233 27.08 60,469
2014-03-04 Denton Robert L Sale 7,000 26.87 188,076
2014-03-04 Denton Robert L Option Ex 7,000 .00 0
2014-03-04 Kesler Steven D Option Ex 5,000 19.65 98,250
2014-03-04 Brady Thomas F Sale 5,000 26.94 134,710
2014-03-04 Brady Thomas F Option Ex 5,000 19.65 98,250
2014-03-04 Hamlin Clay W Iii Sale 10,000 27.00 270,000
2014-03-04 Hamlin Clay W Iii Option Ex 10,000 .00 0
2014-03-03 Thor Greg J (SVP--CAO & Controller) Sale 1,671 26.77 44,739
2014-02-19 Hamlin Clay W Iii Sale 12,549 27.00 338,823
2014-02-19 Hamlin Clay W Iii Option Ex 12,549 .00 0
2014-02-18 Hamlin Clay W Iii Sale 300 27.00 8,100
2014-02-18 Hamlin Clay W Iii Option Ex 300 .00 0
2014-02-14 Hamlin Clay W Iii Sale 17,151 27.00 463,094
2014-02-14 Hamlin Clay W Iii Option Ex 17,151 .00 0
2013-12-12 Pickett C Taylor Buy 10,000 22.09 220,910
2013-12-12 Omega Healthcare Investors Inc Buy 10,000 22.09 220,910
2013-09-18 Hamlin Clay W Iii Sale 5,000 24.00 120,000
2013-09-18 Hamlin Clay W Iii Option Ex 5,000 .00 0
2013-09-04 Hamlin Clay W Iii Sale 3,000 22.83 68,493
2013-09-04 Hamlin Clay W Iii Option Ex 3,000 .00 0
2013-09-03 Hamlin Clay W Iii Sale 2,000 22.78 45,564
2013-09-03 Hamlin Clay W Iii Option Ex 2,000 .00 0
2013-07-08 Hamlin Clay W Iii Sale 10,000 26.30 262,950
2013-07-08 Hamlin Clay W Iii Option Ex 10,000 .00 0
2013-06-03 Hamlin Clay W Iii Sale 10,000 26.56 265,610
2013-06-03 Hamlin Clay W Iii Option Ex 10,000 .00 0
2013-05-14 Denton Robert L Sale 3,525 29.27 103,190
2013-05-01 Hamlin Clay W Iii Sale 10,000 28.86 288,650
2013-05-01 Hamlin Clay W Iii Option Ex 10,000 .00 0
2013-04-15 Hamlin Clay W Iii Sale 10,000 28.50 284,990
2013-04-15 Hamlin Clay W Iii Option Ex 10,000 .00 0
2013-03-07 Wethe Kenneth D Sale 2,000 26.28 52,556
2013-03-07 Riffe Stephen Edward (EVP and CFO) Sale 6,500 26.30 170,950
2013-03-01 Hamlin Clay W Iii Sale 10,000 25.53 255,290
2013-03-01 Hamlin Clay W Iii Option Ex 10,000 .00 0
2013-02-12 Kesler Steven D Sale 10,000 26.47 264,705
2013-02-12 Kesler Steven D Option Ex 5,000 16.20 81,000
2013-02-01 Hamlin Clay W Iii Sale 10,000 26.66 266,550
2013-02-01 Hamlin Clay W Iii Option Ex 10,000 .00 0
2013-01-28 Hamlin Clay W Iii Sale 4,687 27.00 126,549
2013-01-28 Hamlin Clay W Iii Option Ex 4,687 .00 0
2013-01-25 Hamlin Clay W Iii Sale 86,530 27.08 2,343,232
2013-01-25 Hamlin Clay W Iii Option Ex 86,530 .00 0
2013-01-24 Hamlin Clay W Iii Sale 74,996 27.05 2,029,016
2013-01-24 Hamlin Clay W Iii Option Ex 74,996 .00 0
2013-01-23 Hamlin Clay W Iii Sale 33,787 27.00 912,249
2013-01-23 Hamlin Clay W Iii Option Ex 33,787 .00 0
2013-01-02 Hamlin Clay W Iii Sale 10,000 25.28 252,810
2013-01-02 Hamlin Clay W Iii Option Ex 10,000 .00 0
2012-12-14 Hamlin Clay W Iii Sale 100,000 24.55 2,454,900
2012-12-14 Hamlin Clay W Iii Option Ex 100,000 .00 0
2012-12-06 Singer Karen M (SVP, General Counsel & Sec) Sale 1,400 24.73 34,617
2012-12-05 Denton Robert L Sale 4,000 24.65 98,600
2012-12-05 Denton Robert L Option Ex 4,000 .00 0
2012-12-03 Hamlin Clay W Iii Sale 10,000 24.76 247,560
2012-12-03 Hamlin Clay W Iii Option Ex 10,000 .00 0
2012-11-13 Hamlin Clay W Iii Sale 10,000 24.28 242,780
2012-11-13 Hamlin Clay W Iii Option Ex 10,000 .00 0
2012-10-01 Hamlin Clay W Iii Sale 10,000 24.12 241,170
2012-10-01 Hamlin Clay W Iii Option Ex 10,000 .00 0
2012-09-13 Brady Thomas F Sale 5,000 24.65 123,255
2012-09-13 Brady Thomas F Option Ex 5,000 16.20 81,000
2012-09-12 Singer Karen M (SVP, General Counsel & Sec) Sale 3,600 23.88 85,968
2012-09-12 Hamlin Clay W Iii Sale 25,000 24.19 604,700
2012-09-12 Hamlin Clay W Iii Option Ex 25,000 .00 0
2012-09-04 Hamlin Clay W Iii Sale 5,000 22.75 113,760
2012-09-04 Hamlin Clay W Iii Option Ex 5,000 .00 0
2012-08-06 Hamlin Clay W Iii Sale 5,000 22.75 113,750
2012-08-06 Hamlin Clay W Iii Option Ex 5,000 .00 0
2012-07-02 Hamlin Clay W Iii Sale 5,000 23.39 116,945
2012-07-02 Hamlin Clay W Iii Option Ex 5,000 .00 0
2012-06-06 Hamlin Clay W Iii Sale 5,000 22.79 113,945
2012-06-06 Hamlin Clay W Iii Option Ex 5,000 .00 0
2012-05-29 Denton Robert L Sale 2,000 22.69 45,380
2012-05-07 Kesler Steven D Sale 5,000 23.68 118,400
2012-05-07 Kesler Steven D Option Ex 5,000 13.40 67,000
2012-05-01 Hamlin Clay W Iii Sale 10,000 23.81 238,080
2012-05-01 Hamlin Clay W Iii Option Ex 10,000 .00 0
2012-04-02 Hamlin Clay W Iii Sale 5,000 23.17 115,850
2012-04-02 Hamlin Clay W Iii Option Ex 5,000 .00 0
2012-03-01 Hamlin Clay W Iii Sale 10,000 24.52 245,170
2012-03-01 Hamlin Clay W Iii Option Ex 10,000 .00 0
2012-02-01 Hamlin Clay W Iii Sale 10,000 24.66 246,600
2012-02-01 Hamlin Clay W Iii Option Ex 10,000 .00 0
2012-01-27 Hamlin Clay W Iii Sale 5,000 24.08 120,390
2012-01-27 Hamlin Clay W Iii Option Ex 5,000 .00 0
2012-01-13 Hamlin Clay W Iii Sale 5,000 22.77 113,840
2012-01-13 Hamlin Clay W Iii Option Ex 5,000 .00 0
2011-12-13 Wethe Kenneth D Sale 2,000 21.61 43,216
2011-10-31 Denton Robert L Sale 15,000 24.43 366,375
2011-10-31 Denton Robert L Option Ex 13,000 .00 0
2011-07-25 Shidler Jay H Option Ex 5,955 .00 0
2011-07-22 Shidler Jay H Sale 5,955 31.96 190,321
2011-07-21 Shidler Jay H Sale 5,521 31.96 176,451
2011-07-21 Shidler Jay H Option Ex 5,521 .00 0
2011-07-07 Shidler Jay H Sale 20,985 31.96 670,680
2011-07-07 Shidler Jay H Option Ex 20,985 .00 0
2011-06-13 Waesche Roger A Jr (President & COO) Buy 5,500 31.52 173,338
2011-06-13 Griffin Randall M (Chief Executive Officer) Buy 3,000 31.56 94,683
2011-05-12 Griffin Randall M (Chief Executive Officer) Sale 138,068 34.22 4,724,825
2011-05-12 Griffin Randall M (Chief Executive Officer) Option Ex 138,068 12.45 1,718,946
2011-05-12 Brady Thomas F Sale 5,000 34.26 171,285
2011-05-12 Brady Thomas F Option Ex 5,000 13.40 67,000
2011-05-06 Singer Karen M (SVP, General Counsel & Sec) Sale 8,500 34.34 291,890
2011-03-11 Singer Karen M (SVP, General Counsel & Sec) Sale 7,500 34.53 258,975
2011-03-11 Singer Karen M (SVP, General Counsel & Sec) Option Ex 7,500 20.34 152,550
2011-03-02 Kesler Steven D Option Ex 5,000 10.48 52,400
2011-02-17 Denton Robert L Sale 2,000 34.47 68,934
2010-09-14 Singer Karen M (SVP, General Counsel & Sec) Sale 4,000 37.90 151,604
2010-09-14 Singer Karen M (SVP, General Counsel & Sec) Option Ex 4,000 11.87 47,480
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Insider trading activities including stock purchases, stock sales, and option exercises of OFC listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Corporate Office Properties Trust (symbol OFC, CIK number 860546) see the Securities and Exchange Commission (SEC) website.