| 2015-09-16 | Sale | Cogent Communications Holdings, Inc. CCOI | Chief Revenue Officer | 2,200 0.005% | $28.03 | $61,666 | +36.33% | |
| 2015-06-02 | Sale | Cogent Communications Holdings, Inc. CCOI | Chief Revenue Officer | 2,250 0.005% | $31.06 | $69,885 | +9.02% | |
| 2014-11-19 | Sale | Cogent Communications Holdings, Inc. CCOI | Chief Revenue Officer | 1,250 0.0028% | $35.17 | $43,965 | -1.27% | |
| 2014-08-14 | Sale | Cogent Communications Holdings, Inc. CCOI | Chief Revenue Officer | 8,500 0.0186% | $32.75 | $278,375 | +6.05% | |
| 2014-03-12 | Sale | Cogent Communications Holdings, Inc. CCOI | Chief Revenue Officer | 2,000 0.0042% | $35.00 | $70,000 | -2.36% |