| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| CCOI | COGENT COMMUNICATIONS GROUP INC | SCHLEIFER MARK A | VP of IP Engineering | Dec 02, 2011 | Option Exercise | $10.73 | 6,250 | 67,063 | 3,125 | Dec 05, 2011, 11:20 AM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | SCHLEIFER MARK A | VP of IP Engineering | Oct 17, 2011 | Sale | $14.90 | 3,000 | 44,710 | 33,650 | Oct 17, 2011, 05:08 PM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | SCHLEIFER MARK A | VP of IP Engineering | Oct 03, 2011 | Sale | $13.27 | 1,250 | 16,590 | 36,650 | Oct 03, 2011, 05:43 PM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | SCHLEIFER MARK A | VP of IP Engineering | Jul 15, 2011 | Sale | $16.69 | 3,000 | 50,077 | 37,900 | Jul 15, 2011, 05:23 PM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | SCHLEIFER MARK A | VP of IP Engineering | Jul 01, 2011 | Sale | $16.83 | 1,250 | 21,043 | 40,900 | Jul 01, 2011, 06:38 PM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | SCHLEIFER MARK A | VP of IP Engineering | Apr 15, 2011 | Sale | $12.92 | 17,040 | 220,143 | 42,150 | Apr 18, 2011, 11:21 AM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | SCHLEIFER MARK A | VP of IP Engineering | Apr 01, 2011 | Sale | $14.32 | 1,250 | 17,900 | 61,350 | Apr 04, 2011, 04:18 PM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | SCHLEIFER MARK A | VP of IP Engineering | Jan 04, 2011 | Sale | $14.24 | 1,250 | 17,800 | 62,600 | Jan 05, 2011, 06:28 PM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | SCHLEIFER MARK A | VP of IP Engineering | Oct 13, 2010 | Sale | $10.00 | 1,250 | 12,500 | 63,850 | Oct 13, 2010, 06:09 PM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | SCHLEIFER MARK A | VP of IP Engineering | Oct 11, 2010 | Sale | $10.00 | 1,250 | 12,500 | 65,100 | Oct 12, 2010, 01:05 PM |
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