| 2022-11-16 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 4,800 0.0103% | $58.01 | $278,445 | +14.37% | |
| 2021-08-03 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 382 0.0008% | $78.20 | $29,872 | -12.85% | |
| 2021-08-02 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 3,572 0.0078% | $78.23 | $279,430 | -12.16% | |
| 2021-07-16 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO & VP Optical Transport | 846 0.0019% | $78.24 | $66,191 | -8.25% | |
| 2021-07-02 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO & VP Optical Transport | 4,800 0.0104% | $76.14 | $365,484 | -4.75% | |
| 2021-06-07 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO & VP Optical Transport | 2,400 0.0052% | $77.00 | $184,812 | -4.64% | |
| 2020-03-03 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 4,800 0.0105% | $81.22 | $389,873 | -16.12% | |
| 2019-12-04 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 3,000 0.0066% | $61.92 | $185,764 | +18.55% | |
| 2019-06-10 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 2,400 0.0053% | $61.24 | $146,966 | +4.82% | |
| 2019-06-04 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 3,000 0.0065% | $57.05 | $171,165 | +9.01% | |
| 2019-05-22 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 2,440 0.0054% | $58.40 | $142,496 | +8.37% | |
| 2019-04-05 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 2,600 0.0058% | $56.12 | $145,900 | +10.96% | |
| 2019-04-04 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 400 0.0009% | $56.00 | $22,401 | +10.75% | |
| 2019-03-21 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 2,800 0.0061% | $52.32 | $146,494 | +15.29% | |
| 2019-03-20 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 200 0.0004% | $52.01 | $10,402 | +18.33% | |
| 2019-03-15 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 3,000 0.0066% | $51.00 | $153,000 | +18.27% | |
| 2018-06-19 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 2,100 0.0046% | $54.76 | $114,988 | -4.17% | |
| 2018-06-15 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 3,000 0.0067% | $53.78 | $161,333 | -1.91% | |
| 2018-06-06 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 3,000 0.0068% | $52.67 | $157,997 | +1.74% | |
| 2017-09-14 | Sale | Cogent Communications Holdings, Inc. CCOI | CTO; VP Optical Transport | 3,000 0.0068% | $46.75 | $140,250 | +5.24% |