| 2024-05-23 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,640 0.0033% | $57.79 | $94,782 | -6.91% | |
| 2023-11-27 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 925 0.0019% | $65.77 | $60,841 | -0.9% | |
| 2023-08-24 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 550 0.0011% | $68.85 | $37,865 | -4.85% | |
| 2023-05-30 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,100 0.0024% | $63.14 | $69,451 | +4.33% | |
| 2023-03-13 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 600 0.0013% | $61.66 | $36,998 | +8.6% | |
| 2022-11-21 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 962 0.0021% | $57.83 | $55,631 | +12.82% | |
| 2022-06-02 | Sale | Cogent Communications Holdings, Inc. CCOI | 1,350 0.0029% | $60.88 | $82,194 | -0.77% | ||
| 2022-03-01 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,100 0.0023% | $62.27 | $68,497 | -1.46% | |
| 2021-11-23 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,600 0.0034% | $77.36 | $123,784 | -19.52% | |
| 2021-08-24 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,750 0.0038% | $71.99 | $125,990 | -7.87% | |
| 2021-05-17 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 2,450 0.0054% | $76.43 | $187,257 | -2.27% | |
| 2021-03-02 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,050 0.0023% | $59.34 | $62,303 | +29.62% | |
| 2020-11-09 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,200 0.0026% | $58.55 | $70,257 | +28.13% | |
| 2020-09-08 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,050 0.0023% | $65.97 | $69,265 | +0.3% | |
| 2020-06-11 | Sale | Cogent Communications Holdings, Inc. CCOI | director | 1,750 0.0039% | $75.54 | $132,193 | -11.86% |