The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) by Schleifer Mark A since 2005.
The trader's CIK number is 1166940.
At the time of the last reporting, Schleifer Mark A was the VP of IP Engineering of Cogent Communications Holdings, Inc.. (stock ticker symbol CCOI).
Also see all insider trading activities at Cogent Communications Holdings, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2011 | CCOI | 0 | $0 | 31,165 | $440,068 | 3,125 | $15,250 |
| 2010 | CCOI | 0 | $0 | 5,000 | $51,191 | 0 | $0 |
| 2009 | CCOI | 0 | $0 | 37,500 | $350,153 | 0 | $0 |
| 2008 | CCOI | 0 | $0 | 2,449 | $38,404 | 2,449 | $6,100 |
| 2007 | CCOI | 0 | $0 | 8,241 | $198,859 | 8,241 | $18,766 |
| 2006 | CCOI | 0 | $0 | 8,291 | $82,749 | 1,200 | $0 |
| 2005 | CCOI | 0 | $0 | 19,481 | $113,476 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2011-12-02 | CCOI | Option Ex | 3,125 | 4.88 | 15,250 |
| 2011-12-02 | CCOI | Sale | 3,125 | 16.58 | 51,812 |
| 2011-10-17 | CCOI | Sale | 3,000 | 14.90 | 44,709 |
| 2011-10-03 | CCOI | Sale | 1,250 | 13.27 | 16,590 |
| 2011-07-15 | CCOI | Sale | 3,000 | 16.69 | 50,076 |
| 2011-07-01 | CCOI | Sale | 1,250 | 16.83 | 21,042 |
| 2011-04-15 | CCOI | Sale | 17,040 | 12.92 | 220,139 |
| 2011-04-01 | CCOI | Sale | 1,250 | 14.32 | 17,900 |
| 2011-01-04 | CCOI | Sale | 1,250 | 14.24 | 17,800 |
| 2010-10-13 | CCOI | Sale | 1,250 | 10.00 | 12,500 |
| 2010-10-11 | CCOI | Sale | 1,250 | 10.00 | 12,500 |
| 2010-04-01 | CCOI | Sale | 1,250 | 10.43 | 13,037 |
| 2010-03-03 | CCOI | Sale | 1,250 | 10.52 | 13,154 |
| 2009-10-09 | CCOI | Sale | 10,000 | 12.46 | 124,629 |
| 2009-07-01 | CCOI | Sale | 1,250 | 8.22 | 10,273 |
| 2009-04-30 | CCOI | Sale | 20,000 | 8.63 | 172,600 |
| 2009-04-02 | CCOI | Sale | 1,250 | 8.21 | 10,256 |
| 2009-01-02 | CCOI | Sale | 5,000 | 6.48 | 32,395 |
| 2008-06-20 | CCOI | Option Ex | 599 | .00 | 0 |
| 2008-06-20 | CCOI | Sale | 599 | 14.89 | 8,919 |
| 2008-06-06 | CCOI | Option Ex | 1,250 | 4.88 | 6,100 |
| 2008-06-06 | CCOI | Sale | 1,250 | 14.64 | 18,301 |
| 2008-03-20 | CCOI | Option Ex | 600 | .00 | 0 |
| 2008-03-20 | CCOI | Sale | 600 | 18.64 | 11,184 |
| 2007-12-20 | CCOI | Option Ex | 600 | .00 | 0 |
| 2007-12-20 | CCOI | Sale | 600 | 22.80 | 13,681 |
| 2007-12-13 | CCOI | Option Ex | 841 | 2.44 | 2,052 |
| 2007-12-13 | CCOI | Sale | 841 | 21.96 | 18,469 |
| 2007-09-20 | CCOI | Sale | 600 | 25.24 | 15,144 |
| 2007-09-20 | CCOI | Option Ex | 600 | .00 | 0 |
| 2007-08-20 | CCOI | Option Ex | 625 | 4.88 | 3,050 |
| 2007-08-20 | CCOI | Sale | 625 | 24.78 | 15,486 |
| 2007-06-21 | CCOI | Sale | 600 | 29.29 | 17,574 |
| 2007-06-21 | CCOI | Option Ex | 600 | .00 | 0 |
| 2007-06-08 | CCOI | Option Ex | 625 | 4.88 | 3,050 |
| 2007-06-08 | CCOI | Sale | 625 | 25.77 | 16,106 |
| 2007-03-20 | CCOI | Option Ex | 4,350 | 2.44 | 10,614 |
| 2007-03-20 | CCOI | Sale | 4,350 | 23.54 | 102,399 |
| 2006-12-20 | CCOI | Option Ex | 600 | .00 | 0 |
| 2006-12-20 | CCOI | Sale | 600 | 15.55 | 9,330 |
| 2006-09-26 | CCOI | Sale | 600 | 10.57 | 6,342 |
| 2006-09-25 | CCOI | Sale | 1,691 | 10.57 | 17,873 |
| 2006-09-25 | CCOI | Option Ex | 600 | .00 | 0 |
| 2006-03-20 | CCOI | Sale | 5,400 | 9.11 | 49,204 |
| 2005-12-08 | COI | Sale | 19,481 | 5.83 | 113,476 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Schleifer Mark A (VP of IP Engineering of Cogent Communications Holdings, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.