Dave Schaeffer is CEO & Chairman +1 at COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI). They have made 49 open-market trades across 1 company since 2006, most recently 2026-05-04.
CIK 0001166976
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 49 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CCOI | 609,143 | $4.9M |
Shares reported on the most recent Form 4, priced at the 2026-05-04 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 55% | 64% | 36% |
| Avg Move | +0.7% | +1.5% | +1.6% |
| Scored | 11 | 11 | 11 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CCOI | SELL | 2025-08-08 | 2025-08-11 | $27.50 | $45.0M | +20.3% | +13.2% | -29.1% |
| CCOI | SELL | 2025-08-07 | 2025-08-08 | $32.60 | $120.0M | +21.8% | +19.8% | -18.9% |
| CCOI | SELL | 2025-06-16 | 2025-06-16 | $47.11 | $3.3M | +4.0% | +12.9% | -19.4% |
| CCOI | SELL | 2025-06-13 | 2025-06-16 | $47.40 | $3.1M | +4.0% | +12.9% | -19.4% |
| CCOI | SELL | 2025-06-12 | 2025-06-12 | $47.86 | $2.6M | +0.7% | +5.5% | -26.2% |
| CCOI | SELL | 2025-06-11 | 2025-06-12 | $48.51 | $2.7M | +0.7% | +5.5% | -26.2% |
| CCOI | SELL | 2025-06-10 | 2025-06-10 | $48.68 | $2.7M | +0.6% | +3.1% | -24.7% |
| CCOI | SELL | 2025-06-09 | 2025-06-09 | $48.64 | $2.7M | -3.6% | +0.1% | -25.1% |
| CCOI | SELL | 2025-06-06 | 2025-06-09 | $47.78 | $3.8M | -3.6% | +0.1% | -25.1% |
| CCOI | SELL | 2025-06-05 | 2025-06-09 | $47.30 | $3.5M | -3.6% | +0.1% | -25.1% |
| CCOI | SELL | 2025-06-04 | 2025-06-05 | $47.76 | $3.6M | -1.6% | +2.7% | -24.6% |
| CCOI | SELL | 2025-06-03 | 2025-06-04 | $46.97 | $3.1M | -1.4% | +3.5% | -22.4% |
| CCOI | SELL | 2025-06-02 | 2025-06-03 | $46.32 | $3.0M | -1.0% | +6.0% | -22.2% |
| CCOI | SELL | 2025-05-30 | 2025-06-02 | $45.90 | $1.1M | +3.9% | +9.5% | -20.1% |
| CCOI | SELL | 2025-05-29 | 2025-05-30 | $46.90 | $1.2M | +5.9% | +6.0% | -17.6% |
| CCOI | SELL | 2025-05-28 | 2025-05-29 | $47.41 | $1.9M | +2.6% | +1.7% | -20.3% |
| CCOI | SELL | 2025-05-27 | 2025-05-28 | $48.67 | $973K | +4.5% | +2.9% | -20.1% |
| CCOI | SELL | 2025-05-23 | 2025-05-27 | $46.93 | $1.2M | -2.5% | -1.9% | -22.0% |
| CCOI | SELL | 2025-05-22 | 2025-05-23 | $46.27 | $1.2M | -0.6% | +3.3% | -21.3% |
| CCOI | SELL | 2025-05-21 | 2025-05-22 | $46.81 | $1.9M | +4.9% | +8.6% | -17.3% |
| CCOI | SELL | 2025-05-20 | 2025-05-21 | $49.96 | $749K | +5.9% | +5.8% | -15.8% |
| CCOI | SELL | 2025-05-16 | 2025-05-19 | $51.00 | $765K | -7.9% | -5.9% | -25.7% |
| CCOI | SELL | 2025-05-15 | 2025-05-16 | $50.38 | $2.0M | -4.9% | -6.1% | -31.7% |
| CCOI | SELL | 2025-05-14 | 2025-05-15 | $50.64 | $1.5M | -6.8% | -6.5% | -30.6% |
| CCOI | SELL | 2025-05-12 | 2025-05-14 | $50.38 | $5.4M | -2.5% | -6.9% | -32.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.