| Jun 30, 2026 AForm 4 → | Jun 30, 5:03 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 3,445 | — | — | 99,842 | — | |
| Mar 12, 2019 SForm 4 → | Mar 12, 4:19 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 2,000 | $50.00 | $100,000 | 43,750 | −4.37% | plan? |
| Mar 4, 2019 GForm 4 → | Mar 5, 10:40 am EST | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,000 | — | — | 45,750 | — | plan? |
| Feb 11, 2019 SForm 4 → | Feb 13, 5:29 pm EST | Endurance International Group Holdings, Inc.EIGI | 7,851 | $7.55 | $59,275 | 1,003,665 | −0.78% | plan? |
| Feb 6, 2019 AForm 4 → | Feb 8, 6:01 pm EST | Endurance International Group Holdings, Inc.EIGI | 187,735 | — | — | 1,011,516 | — | plan? |
| Jan 1, 2019 AForm 4 → | Jan 2, 4:29 pm EST | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,750 | — | — | 46,750 | — | plan? |
| Oct 1, 2018 AForm 4 → | Oct 1, 5:13 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,750 | — | — | 45,000 | — | plan? |
| Sep 17, 2018 SForm 4 → | Sep 19, 4:50 pm EDT | Endurance International Group Holdings, Inc.EIGI | 9,424 | $9.20 | $86,701 | 823,781 | −1.13% | plan? |
| Jul 1, 2018 AForm 4 → | Jul 2, 4:31 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,750 | — | — | 43,250 | — | plan? |
| May 18, 2018 SForm 4 → | May 18, 4:13 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 2,000 | $50.00 | $100,000 | 41,500 | −4.60% | plan? |
| Apr 26, 2018 AForm 4 → | Apr 30, 4:59 pm EDT | Endurance International Group Holdings, Inc.EIGI | 215,000 | — | — | 833,205 | — | plan? |
| Apr 16, 2018 SForm 4 → | Apr 18, 4:59 pm EDT | Endurance International Group Holdings, Inc.EIGI | 64,032 | $7.30 | $467,466 | 618,205 | −9.39% | plan? |
| Apr 2, 2018 SForm 4 → | Apr 4, 6:53 pm EDT | Endurance International Group Holdings, Inc.EIGI | 8,405 | $7.30 | $61,365 | 682,237 | −1.22% | plan? |
| Apr 1, 2018 AForm 4 → | Apr 2, 4:29 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,750 | — | — | 43,500 | — | plan? |
| Feb 9, 2018 AForm 4 → | Feb 13, 6:19 pm EST | Endurance International Group Holdings, Inc.EIGI | 75,000 | — | — | 690,642 | — | plan? |
| Jan 1, 2018 AForm 4 → | Jan 2, 4:06 pm EST | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,750 | — | — | 41,750 | — | plan? |
| Dec 15, 2017 SForm 4 → | Dec 15, 11:46 am EST | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 5,000 | $47.00 | $235,000 | 40,000 | −11.1% | plan? |
| Oct 1, 2017 AForm 4 → | Oct 3, 9:57 am EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,750 | — | — | 45,000 | — | plan? |
| Sep 18, 2017 SForm 4 → | Sep 20, 7:37 pm EDT | Endurance International Group Holdings, Inc.EIGI | 10,229 | $7.62 | $77,899 | 615,642 | −1.63% | plan? |
| Jul 1, 2017 AForm 4 → | Jul 5, 1:26 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,750 | — | — | 43,250 | — | plan? |
| May 12, 2017 AForm 4 → | May 16, 5:37 pm EDT | Endurance International Group Holdings, Inc.EIGI | 318,471 | — | — | 625,871 | — | plan? |
| May 3, 2017 AForm 4 → | May 3, 4:10 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,750 | — | — | 41,500 | — | plan? |
| Apr 4, 2017 SForm 4 → | Apr 6, 6:04 pm EDT | Endurance International Group Holdings, Inc.EIGI | 102,282 | $7.64 | $781,864 | 307,400 | −25.0% | plan? |
| Mar 26, 2017 AForm 4 → | Mar 27, 5:22 pm EDT | Endurance International Group Holdings, Inc.EIGI | 223,214 | — | — | 409,682 | — | plan? |
| Jan 1, 2017 AForm 4 → | Jan 3, 4:48 pm EST | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,750 | — | — | 39,750 | — | plan? |
| Oct 1, 2016 AForm 4 → | Oct 3, 4:51 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,875 | — | — | 38,000 | — | plan? |
| Sep 16, 2016 SForm 4 → | Sep 19, 6:11 pm EDT | Endurance International Group Holdings, Inc.EIGI | 10,490 | $8.25 | $86,543 | 186,468 | −5.33% | plan? |
| Jul 1, 2016 AForm 4 → | Jul 5, 10:24 am EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,875 | — | — | 36,125 | — | plan? |
| May 9, 2016 SForm 4 → | May 9, 3:18 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 10,000 | $39.23 | $392,302 | 34,250 | −22.6% | plan? |
| Apr 28, 2016 AForm 4 → | May 2, 5:54 pm EDT | Endurance International Group Holdings, Inc.EIGI | 112,613 | — | — | 196,958 | — | plan? |
| Apr 1, 2016 AForm 4 → | Apr 4, 10:01 am EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,875 | — | — | 44,250 | — | plan? |
| Jan 1, 2016 AForm 4 → | Jan 5, 12:25 pm EST | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,875 | — | — | 42,375 | — | plan? |
| Oct 1, 2015 AForm 4 → | Oct 1, 5:16 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,875 | — | — | 40,500 | — | plan? |
| Sep 15, 2015 AForm 4 → | Sep 16, 4:24 pm EDT | Endurance International Group Holdings, Inc.EIGI | 84,345 | — | — | 84,345 | — | plan? |
| Jul 1, 2015 AForm 4 → | Jul 1, 4:35 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,875 | — | — | 38,625 | — | plan? |
| Apr 1, 2015 AForm 4 → | Apr 1, 4:10 pm EDT | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,875 | — | — | 36,750 | — | plan? |
| Jan 1, 2015 AForm 4 → | Jan 2, 4:02 pm EST | COGENT COMMUNICATIONS HOLDINGS, INC.CCOI | 1,875 | — | — | 34,875 | — | plan? |