CCOI
Cogent Communications Holdings, Inc. · Communication Services · Telecommunications Services
Momentum inputs (comparable managers):
holder breadth +14.3% ·
share flow -0.2% ·
net new positions +12.5%
· formula
Ownership fragmentation: more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 25.17K | $240,606 | n/a | n/a |
| Q2 2026 | 74 | +1 | 24.15M | $335.24M | +6 | −5 |
| Q1 2026 | 76 | -2 | 24.18M | $454.93M | +6 | −8 |
| Q4 2025 | 78 | -1 | 27.66M | $596.35M | +1 | −2 |
| Q3 2025 | 16 | +2 | 20.31M | $778.74M | +2 | n/a |
| Q2 2025 | 11 | -1 | 17.04M | $821.72M | n/a | −1 |
| Q1 2025 | 9 | 0 | 4.54M | $278.65M | +2 | −2 |
| Q4 2024 | 9 | -1 | 5.00M | $385.13M | n/a | −1 |
| Q3 2024 | 9 | +2 | 3.34M | $253.67M | +2 | n/a |
| Q2 2024 | 7 | n/a | 3.37M | $190.05M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 6.89M | +6.3% | $264.31M | 0.0% | ▲ Add | 2 | SEC ↗ ×15 |
| 2 | The Vanguard Group ✦ (passive) | 5.36M | +5.3% | $205.66M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 3 | State Street Global Advisors ✦ (passive) | 1.94M | +8.4% | $74.31M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Morgan Stanley ✦ | 1.80M | n/a | $69.05M | 0.0% | n/c | 1 | SEC ↗ ×10 |
| 5 | Geode Capital Management ✦ (passive) | 1.15M | +8.2% | $44.01M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 6 | JPMorgan Chase ✦ | 1.08M | n/a | $41.40M | 0.0% | n/c | 1 | SEC ↗ ×14 |
| 7 | Capital World Investors ✦ | 528.38K | -44.7% | $20.26M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 8 | Goldman Sachs Group ✦ | 414.26K | n/a | $15.89M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 9 | D. E. Shaw & Co. ✦ | 393.13K | New | $15.08M | 0.0% | New | 1 | SEC ↗ |
| 10 | Fidelity (FMR) ✦ | 223.37K | -75.0% | $8.57M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 11 | Renaissance Technologies ✦ | 187.99K | -59.0% | $7.21M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 12 | Marshall Wace ✦ | 104.91K | New | $4.02M | 0.0% | New | 1 | SEC ↗ ×2 |
| 13 | Citadel Advisors ✦ | 81.91K | -67.3% | $3.14M | 0.0% | ▼ Trim | 6 | SEC ↗ ×2 |
| 14 | Millennium Management ✦ | 79.74K | +279.0% | $3.06M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | T. Rowe Price ✦ | 39.94K | +4.2% | $1.53M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 16 | AQR Capital Management ✦ | 32.12K | +536.4% | $1.23M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| D. E. Shaw & Co. | $15.08M | 0.0% |
| Marshall Wace | $4.02M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 232 holders, 52.23M shares, $967.26M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 2.40K sh · $22,104
Officer · 4.85K sh · $45,445
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology