James Bubeck is CRO at COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI). They have made 34 open-market trades across 1 company since 2016, most recently 2025-06-04.
CIK 0001654298
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 34 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CCOI | 55,142 | $444K |
Shares reported on the most recent Form 4, priced at the 2025-06-06 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CCOI | SELL | 2025-06-04 | 2025-06-06 | $47.50 | $95K | -3.3% | +1.9% | -24.1% |
| CCOI | SELL | 2025-03-04 | 2025-03-05 | $71.67 | $143K | +2.2% | -18.0% | -31.6% |
| CCOI | SELL | 2024-12-09 | 2024-12-10 | $76.60 | $147K | -0.3% | -7.5% | -10.2% |
| CCOI | SELL | 2024-12-02 | 2024-12-03 | $81.42 | $313K | -3.5% | -3.8% | -11.0% |
| CCOI | SELL · 10b5-1 | 2024-09-04 | 2024-09-05 | $69.77 | $268K | -2.5% | +6.6% | +10.8% |
| CCOI | SELL · 10b5-1 | 2024-06-03 | 2024-06-04 | $58.97 | $226K | -8.0% | -1.2% | +21.8% |
| CCOI | SELL · 10b5-1 | 2024-03-01 | 2024-03-04 | $76.62 | $294K | -9.5% | -10.2% | -19.4% |
| CCOI | SELL | 2023-12-05 | 2023-12-06 | $66.12 | $254K | +8.1% | +10.9% | +8.7% |
| CCOI | SELL · 10b5-1 | 2023-12-01 | 2023-12-04 | $63.70 | $122K | +9.2% | +13.3% | +6.9% |
| CCOI | SELL · 10b5-1 | 2023-09-01 | 2023-09-05 | $70.96 | $272K | -5.9% | -11.8% | -4.5% |
| CCOI | SELL · 10b5-1 | 2023-06-01 | 2023-06-02 | $61.07 | $235K | +3.9% | +7.1% | +12.8% |
| CCOI | SELL | 2023-03-01 | 2023-03-03 | $64.49 | $248K | -4.2% | -1.4% | -4.3% |
| CCOI | SELL | 2022-12-05 | 2022-12-09 | $57.45 | $110K | -0.9% | +7.2% | +7.4% |
| CCOI | SELL | 2022-12-01 | 2022-12-02 | $58.15 | $112K | -2.4% | +0.4% | +11.4% |
| CCOI | SELL | 2022-09-01 | 2022-09-06 | $53.51 | $205K | -1.9% | -3.8% | +5.5% |
| CCOI | SELL | 2022-06-01 | 2022-06-02 | $60.03 | $231K | -4.4% | +2.3% | -12.2% |
| CCOI | SELL | 2022-03-01 | 2022-03-02 | $62.94 | $242K | -0.8% | +8.4% | -4.9% |
| CCOI | SELL | 2021-12-14 | 2021-12-15 | $76.77 | $295K | -3.8% | -15.8% | -16.8% |
| CCOI | SELL | 2021-12-01 | 2021-12-03 | $74.92 | $288K | +1.4% | -3.0% | -15.5% |
| CCOI | SELL | 2021-09-01 | 2021-09-02 | $73.64 | $283K | -3.1% | -3.4% | -3.4% |
| CCOI | SELL | 2021-06-01 | 2021-06-02 | $74.96 | $288K | +3.5% | +0.2% | -4.1% |
| CCOI | SELL | 2021-05-19 | 2021-05-19 | $74.66 | $373K | +1.2% | +4.8% | -1.8% |
| CCOI | SELL | 2021-03-10 | 2021-03-11 | $60.43 | $232K | +4.7% | +12.2% | +22.1% |
| CCOI | SELL | 2020-12-01 | 2020-12-02 | $57.94 | $445K | +4.5% | +4.9% | +3.1% |
| CCOI | SELL | 2020-09-01 | 2020-09-02 | $67.47 | $259K | -3.0% | -12.0% | -15.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.