Insider Trading activities of Cogent Communications Holdings, Inc. insiders. , Part 4

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Cogent Communications Holdings, Inc. since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Cogent Communications Holdings, Inc. since year 2005. (See page 1 of this report.) Table 2 shows the detailed insider transactions of Cogent Communications Holdings, Inc. since 2005. The reporting company's ticker symbol is CCOI. The reporting company's CIK number is 1158324.
The total value of stock buying since 2005 is $1,242,724.
The total value of stock sales since 2005 is $471,055,304.
The total value of stock option exercises since 2005 is $1,547,432.



Table 2. Detailed insider stock purchases, sales, and option exercises of Cogent Communications Holdings, Inc. insiders (CCOI) , Part 4
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2010-07-13 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 416 8.00 3,328
2010-07-08 Beury Robert N Jr (VP & Chief Legal Officer) Sale 1,000 7.51 7,512
2010-07-01 Karnes Jeffrey (VP Sales & CRO) Sale 625 7.34 4,588
2010-07-01 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 625 7.34 4,589
2010-06-21 Karnes Jeffrey (VP Sales & CRO) Sale 938 8.73 8,192
2010-06-01 Beury Robert N Jr (VP & Chief Legal Officer) Sale 1,000 9.13 9,130
2010-06-01 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 416 9.10 3,787
2010-05-10 Beury Robert N Jr (VP & Chief Legal Officer) Sale 500 9.62 4,809
2010-05-03 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 416 10.26 4,266
2010-04-30 Beury Robert N Jr (VP & Chief Legal Officer) Sale 1,000 10.37 10,372
2010-04-09 Beury Robert N Jr (VP & Chief Legal Officer) Sale 500 10.06 5,030
2010-04-01 Karnes Jeffrey (VP Sales & CRO) Sale 500 10.09 5,047
2010-04-01 Kummer Raymond B (CTO; VP Optical Transport) Sale 500 10.43 5,215
2010-04-01 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 1,666 10.12 16,858
2010-04-01 Schleifer Mark A (VP of IP Engineering) Sale 1,250 10.43 13,037
2010-04-01 Oneill Timothy G (VP Field Engineering) Sale 1,250 10.43 13,037
2010-03-31 Beury Robert N Jr (VP & Chief Legal Officer) Sale 1,000 10.59 10,593
2010-03-22 Karnes Jeffrey (VP Sales & CRO) Sale 750 11.24 8,433
2010-03-09 Beury Robert N Jr (VP & Chief Legal Officer) Sale 500 11.35 5,674
2010-03-03 Schleifer Mark A (VP of IP Engineering) Sale 1,250 10.52 13,154
2010-03-01 Beury Robert N Jr (VP & Chief Legal Officer) Sale 1,000 9.99 9,995
2010-03-01 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 416 10.00 4,158
2010-02-09 Beury Robert N Jr (VP & Chief Legal Officer) Sale 500 10.86 5,428
2010-02-01 Beury Robert N Jr (VP & Chief Legal Officer) Sale 1,000 11.05 11,047
2010-02-01 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 416 11.02 4,582
2010-01-14 Beury Robert N Jr (VP & Chief Legal Officer) Sale 4,000 11.93 47,720
2010-01-11 Beury Robert N Jr (VP & Chief Legal Officer) Sale 4,500 10.81 48,667
2010-01-07 Margalit Erel N Buy 8,700 14.18 123,366
2010-01-06 Margalit Erel N Buy 7,140 10.50 74,948
2010-01-05 Weingarten Tim Buy 7,379 10.14 74,852
2010-01-05 Brooks Steven D Buy 5,000 9.93 49,650
2010-01-04 Bath Blake Buy 7,500 9.95 74,647
2010-01-04 Karnes Jeffrey (VP Sales & CRO) Sale 500 9.95 4,975
2010-01-04 Liebhaber Richard Buy 7,500 9.99 74,895
2010-01-04 Kummer Raymond B (CTO; VP Optical Transport) Sale 500 9.91 4,953
2010-01-04 Beury Robert N Jr (VP & Chief Legal Officer) Sale 400 9.95 3,979
2010-01-04 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 1,666 9.97 16,610
2010-01-04 Oneill Timothy G (VP Field Engineering) Sale 1,250 10.00 12,500
2009-12-31 Beury Robert N Jr (VP & Chief Legal Officer) Sale 1,000 9.92 9,918
2009-12-30 Schaeffer Dave (Chairman, President & CEO) Option Ex 76,930 .00 0
2009-12-21 Karnes Jeffrey (VP Sales & CRO) Sale 750 9.32 6,990
2009-12-09 Beury Robert N Jr (VP & Chief Legal Officer) Sale 500 9.09 4,544
2009-12-01 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 416 8.59 3,574
2009-11-30 Beury Robert N Jr (VP & Chief Legal Officer) Sale 1,000 8.29 8,289
2009-11-09 Beury Robert N Jr (VP & Chief Legal Officer) Sale 500 9.14 4,572
2009-11-09 Schaeffer Dave (Chairman & CEO) Option Ex 200,000 .00 0
2009-11-02 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 416 9.99 4,156
2009-10-30 Beury Robert N Jr (VP & Chief Legal Officer) Sale 1,000 10.33 10,334
2009-10-09 Karnes Jeffrey (VP Sales & CRO) Sale 4,000 12.44 49,740
2009-10-09 Kummer Raymond B (CTO; VP Optical Transport) Sale 4,000 12.30 49,184
2009-10-09 Beury Robert N Jr (VP & Chief Legal Counsel) Sale 3,500 12.43 43,512
2009-10-09 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 20,000 12.44 248,860
2009-10-09 Schleifer Mark A (VP of IP Engineering) Sale 10,000 12.46 124,629
2009-10-09 Oneill Timothy G (VP Field Engineering) Sale 4,000 12.31 49,240
2009-10-01 Karnes Jeffrey (VP Sales & CRO) Sale 500 10.98 5,491
2009-10-01 Kummer Raymond B (CTO; VP Optical Transport) Sale 500 11.17 5,585
2009-10-01 Weed Thaddeus Gerard (VP, CFO & Treasurer) Sale 1,666 10.99 18,316
2009-10-01 Oneill Timothy G (VP Field Engineering) Sale 500 11.17 5,585
2009-09-30 Beury Robert N Jr (VP & Chief Legal Counsel) Sale 1,000 11.28 11,278
2009-09-21 Karnes Jeffrey (VP Sales & CRO) Sale 750 12.07 9,051
2009-09-16 Kummer Raymond B (CTO; VP Optical Transport) Sale 7,000 12.23 85,624
2009-09-10 Harrison R Reed (President & COO) Sale 10,000 11.03 110,320
2009-09-10 Harrison R Reed (President & COO) Option Ex 10,000 6.00 60,000
2009-09-10 Oneill Timothy G (VP Field Engineering) Sale 3,000 11.00 33,000
2009-09-01 Beury Robert N Jr (Chief Legal Officer) Sale 400 9.65 3,859
2009-09-01 Weed Thaddeus Gerard (VP, CFO) Sale 416 9.65 4,013
2009-08-31 Beury Robert N Jr (Chief Legal Officer) Sale 1,000 9.52 9,522
2009-08-14 Brooks Steven D (Director) Sale 600 11.15 6,690
2009-08-11 Karnes Jeffrey (VP Sales & CRO) Sale 5,000 11.15 55,730
2009-08-07 Harrison R Reed (President & COO) Sale 40,000 11.01 440,319
2009-08-07 Harrison R Reed (President & COO) Option Ex 40,000 6.00 240,000
2009-08-07 Weed Thaddeus Gerard (VP, CFO) Sale 10,000 10.00 100,000
2009-08-03 Weed Thaddeus Gerard (VP, CFO) Sale 416 8.34 3,468
2009-07-31 Beury Robert N Jr (Chief Legal Officer) Sale 1,000 8.23 8,229
2009-07-29 Schaeffer Dave (Chairman & CEO) Option Ex 100,000 .00 0
2009-07-01 Karnes Jeffrey (VP Sales & CRO) Sale 625 8.26 5,161
2009-07-01 Kummer Raymond B (CTO & VP) Sale 500 8.20 4,100
2009-07-01 Beury Robert N Jr (Chief Legal Officer) Sale 400 8.26 3,304
2009-07-01 Weed Thaddeus Gerard (VP, CFO) Sale 1,666 8.26 13,767
2009-07-01 Schleifer Mark A (VP of IP Engineering) Sale 1,250 8.22 10,273
2009-07-01 Oneill Timothy G (VP Field Engineering) Sale 500 8.20 4,100
2009-06-30 Beury Robert N Jr (Chief Legal Officer) Sale 1,000 8.19 8,193
2009-06-22 Karnes Jeffrey (VP Sales & CRO) Sale 750 8.26 6,197
2009-06-01 Beury Robert N Jr (Chief Legal Officer) Sale 1,000 8.19 8,193
2009-06-01 Weed Thaddeus Gerard (VP, CFO) Sale 416 8.19 3,408
2009-05-15 Schaeffer Dave (Chairman & CEO) Option Ex 100,000 .00 0
2009-05-01 Weed Thaddeus Gerard (VP, CFO) Sale 416 8.47 3,523
2009-04-30 Karnes Jeffrey (VP Sales & CRO) Sale 10,000 8.76 87,590
2009-04-30 Kummer Raymond B (CTO & VP) Sale 8,000 8.75 70,016
2009-04-30 Beury Robert N Jr (Chief Legal Officer) Sale 7,000 8.76 61,326
2009-04-30 Weed Thaddeus Gerard (VP, CFO) Sale 10,000 8.75 87,470
2009-04-30 Schleifer Mark A (VP of IP Engineering) Sale 20,000 8.63 172,600
2009-04-30 Oneill Timothy G (VP Field Engineering) Sale 8,000 8.63 69,040
2009-04-02 Schleifer Mark A (VP of IP Engineering) Sale 1,250 8.21 10,256
2009-04-01 Karnes Jeffrey (VP Sales & CRO) Sale 625 7.37 4,608
2009-04-01 Kummer Raymond B (CTO & VP) Sale 500 7.02 3,510
2009-04-01 Beury Robert N Jr (Chief Legal Officer) Sale 400 7.38 2,950
2009-04-01 Weed Thaddeus Gerard (VP, CFO) Sale 1,666 7.38 12,286
2009-04-01 Oneill Timothy G (VP Field Engineering) Sale 500 7.02 3,510
2009-03-20 Karnes Jeffrey (VP Sales & CRO) Sale 937 7.24 6,787
2009-03-19 Weed Thaddeus Gerard (VP, CFO) Sale 6,530 7.40 48,302
2009-03-13 Ferguson Lewis H (Director) Sale 6,000 6.83 40,980
2009-03-09 Schaeffer Dave (Chairman & CEO) Option Ex 100,000 .00 0
2009-01-08 Ferguson Lewis H (Director) Buy 8,900 7.37 65,628
2009-01-07 Ferguson Lewis H (Director) Buy 1,500 7.24 10,857
2009-01-05 Bath Blake (Director) Buy 11,200 6.70 74,995
2009-01-05 Weingarten Tim (Director) Buy 11,227 6.69 75,108
2009-01-05 Brooks Steven D (Director) Buy 11,000 6.64 73,095
2009-01-05 Margalit Erel N (Director) Buy 11,360 6.60 74,976
2009-01-02 Karnes Jeffrey (VP Sales & CRO) Sale 2,500 6.69 16,715
2009-01-02 Liebhaber Richard (Director) Buy 11,540 6.47 74,652
2009-01-02 Kummer Raymond B (CTO & VP) Sale 2,000 6.40 12,798
2009-01-02 Beury Robert N Jr (Chief Legal Officer) Sale 2,000 6.67 13,340
2009-01-02 Weed Thaddeus Gerard (VP, CFO) Sale 2,500 6.69 16,717
2009-01-02 Schleifer Mark A (VP of IP Engineering) Sale 5,000 6.48 32,395
2009-01-02 Oneill Timothy G (VP Field Engineering) Sale 2,000 6.54 13,080
2008-12-23 Karnes Jeffrey (VP Sales & CRO) Sale 1,874 6.10 11,433
2008-12-12 Kummer Raymond B (CTO & VP) Sale 6,200 5.50 34,100
2008-12-04 Karnes Jeffrey (VP Sales & CRO) Sale 3,000 5.25 15,750
2008-12-04 Weed Thaddeus Gerard (VP, CFO) Option Ex 284 .00 0
2008-12-02 Beury Robert N Jr (Chief Legal Officer) Sale 500 4.47 2,237
2008-11-14 Kummer Raymond B (CTO & VP) Option Ex 862 .00 0
2008-11-14 Oneill Timothy G (VP Field Engineering) Option Ex 1,462 .00 0
2008-11-03 Beury Robert N Jr (Chief Legal Officer) Sale 500 4.57 2,287
2008-10-24 Oneill Timothy G (VP Field Engineering) Option Ex 1,000 .00 0
2008-10-10 Beury Robert N Jr (Chief Legal Officer) Option Ex 5,000 4.88 24,400
2008-10-02 Beury Robert N Jr (Chief Legal Officer) Sale 1,000 7.40 7,402
2008-09-02 Beury Robert N Jr (Chief Legal Officer) Sale 500 9.17 4,584
2008-08-08 Beury Robert N Jr (Chief Legal Officer) Option Ex 5,000 4.88 24,400
2008-08-04 Beury Robert N Jr (Chief Legal Officer) Sale 500 10.66 5,328
2008-07-02 Beury Robert N Jr (Chief Legal Officer) Sale 500 13.01 6,504
2008-06-20 Beury Robert N Jr (Chief Legal Officer) Sale 3,000 14.37 43,107
2008-06-20 Schleifer Mark A (VP of IP Engineering) Sale 599 14.89 8,919
2008-06-20 Schleifer Mark A (VP of IP Engineering) Option Ex 599 .00 0
2008-06-06 Schleifer Mark A (VP of IP Engineering) Sale 1,250 14.64 18,301
2008-06-06 Schleifer Mark A (VP of IP Engineering) Option Ex 1,250 4.88 6,100
2008-06-03 Weed Thaddeus Gerard (VP, CFO) Sale 416 16.08 6,689
2008-06-02 Beury Robert N Jr (Chief Legal Officer) Sale 354 16.14 5,714
2008-06-02 Beury Robert N Jr (Chief Legal Officer) Option Ex 354 .00 0
2008-05-06 Oneill Timothy G (VP Field Engineering) Sale 1,000 22.50 22,500
2008-05-06 Oneill Timothy G (VP Field Engineering) Option Ex 1,000 4.88 4,880
2008-05-02 Beury Robert N Jr (Chief Legal Officer) Sale 355 21.74 7,718
2008-05-02 Beury Robert N Jr (Chief Legal Officer) Option Ex 355 .00 0
2008-05-01 Weed Thaddeus Gerard (VP, CFO) Sale 696 21.17 14,732
2008-05-01 Weed Thaddeus Gerard (VP, CFO) Option Ex 280 .00 0
2008-04-28 Weed Thaddeus Gerard (VP, CFO) Sale 625 20.00 12,500
2008-04-28 Weed Thaddeus Gerard (VP, CFO) Option Ex 625 4.88 3,050
2008-04-16 Karnes Jeffrey (VP Sales & CRO) Sale 802 19.00 15,238
2008-04-02 Beury Robert N Jr (Chief Legal Officer) Sale 355 19.71 6,998
2008-04-02 Beury Robert N Jr (Chief Legal Officer) Option Ex 355 .00 0

Insider trading activities including stock purchases, stock sales, and option exercises of CCOI listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Cogent Communications Holdings, Inc. (symbol CCOI, CIK number 1158324) see the Securities and Exchange Commission (SEC) website.