| 2024-05-21 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 2,000 0.004% | $58.90 | $117,802 | -7.92% | |
| 2023-11-30 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 950 0.002% | $64.59 | $61,365 | +3.74% | |
| 2023-08-29 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 650 0.0013% | $69.64 | $45,266 | -6.23% | |
| 2023-05-30 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 640 0.0014% | $63.23 | $40,470 | +4.33% | |
| 2023-03-13 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 990 0.0021% | $61.49 | $60,880 | +8.6% | |
| 2022-11-29 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,050 0.0023% | $57.50 | $60,375 | +15.73% | |
| 2022-09-12 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 940 0.002% | $55.13 | $51,822 | +17.39% | |
| 2022-05-31 | Sale | Cogent Communications Holdings, Inc. CCOI | 950 0.002% | $60.72 | $57,684 | +0.58% | ||
| 2022-03-09 | Sale | Cogent Communications Holdings, Inc. CCOI | 725 0.0015% | $63.27 | $45,867 | -4.62% | ||
| 2021-12-08 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 900 0.002% | $77.31 | $69,579 | -18.88% | |
| 2021-09-01 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 850 0.0018% | $73.78 | $62,715 | -12.44% | |
| 2021-06-03 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 750 0.0016% | $75.55 | $56,665 | -2.88% | |
| 2021-03-12 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 850 0.0018% | $62.69 | $53,287 | +16.35% | |
| 2020-12-09 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 950 0.002% | $57.01 | $54,156 | +27.45% | |
| 2020-09-08 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 910 0.002% | $66.05 | $60,106 | +0.3% | |
| 2020-06-09 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,000 0.0022% | $76.52 | $76,520 | -14.63% | |
| 2020-03-11 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 300 0.0006% | $82.85 | $24,854 | -19.66% | |
| 2019-12-12 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 570 0.0012% | $61.52 | $35,069 | +19.15% | |
| 2019-09-10 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 675 0.0015% | $58.28 | $39,342 | +26.32% | |
| 2019-05-23 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 515 0.0011% | $57.45 | $29,586 | +11.02% |