| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | BROOKS STEVEN D | Director | May 11, 2023 | Sale | $65.00 | 3,798 | 246,875 | 37,479 | May 12, 2023, 04:16 PM | |
| CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | BROOKS STEVEN D | Director | Mar 12, 2019 | Sale | $50.13 | 9,900 | 496,280 | 20,000 | Mar 13, 2019, 10:42 AM | |
| CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | BROOKS STEVEN D | Director | May 16, 2018 | Sale | $50.65 | 2,000 | 101,298 | 24,650 | May 17, 2018, 02:45 PM | |
| CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | BROOKS STEVEN D | Director | May 08, 2018 | Sale | $48.34 | 5,000 | 241,696 | 26,650 | May 09, 2018, 01:27 PM | |
| CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | BROOKS STEVEN D | Director | Aug 07, 2017 | Sale | $43.25 | 10,000 | 432,495 | 26,400 | Aug 08, 2017, 05:29 PM | |
| CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | BROOKS STEVEN D | Director | Mar 16, 2017 | Sale | $41.77 | 3,000 | 125,315 | 32,900 | Mar 16, 2017, 07:10 PM | |
| CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | BROOKS STEVEN D | Director | Feb 29, 2016 | Sale | $36.87 | 5,000 | 184,368 | 33,525 | Mar 02, 2016, 09:48 AM | |
| CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | BROOKS STEVEN D | Director | Mar 01, 2016 | Sale | $37.71 | 5,000 | 188,573 | 28,525 | Mar 02, 2016, 09:48 AM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | BROOKS STEVEN D | Director | Jan 02, 2014 | Sale | $39.88 | 2,000 | 79,768 | 23,525 | Jan 03, 2014, 03:52 PM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | BROOKS STEVEN D | Director | Oct 01, 2013 | Sale | $32.26 | 2,000 | 64,530 | 23,650 | Oct 02, 2013, 09:02 AM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | BROOKS STEVEN D | Director | Jul 01, 2013 | Sale | $28.30 | 2,000 | 56,592 | 23,150 | Jul 02, 2013, 02:01 PM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | BROOKS STEVEN D | Director | Jun 14, 2013 | Sale | $27.67 | 3,000 | 83,013 | 22,650 | Jun 18, 2013, 11:07 AM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | BROOKS STEVEN D | Director | Sep 14, 2012 | Sale | $20.93 | 5,000 | 104,634 | 18,150 | Sep 17, 2012, 10:12 AM | |
| CCOI | COGENT COMMUNICATIONS GROUP INC | BROOKS STEVEN D | Director | Nov 09, 2010 | Sale | $11.75 | 32,835 | 385,765 | 15,650 | Nov 10, 2010, 10:05 AM |
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