Filing Flows › Cogent Communications Holdings (CCOI) › Who owns the stock
Who owns Cogent Communications Holdings (CCOI) stock
216 funds reported Cogent Communications Holdings (CCOI) shares in their latest 13F filings, worth $831M in all. The largest holder is Vanguard Group ($120M). Last quarter 105 funds added to their stakes and 107 cut them.
Largest holders (13F)
| Fund | Shares | Value | Change | Quarter |
|---|---|---|---|---|
| Vanguard Group | 5,580,271 | $120M | increase | 2025-12-31 |
| BlackRock | 7,376,384 | $102M | increase | 2026-06-30 |
| Turtle Creek Asset Management | 4,203,527 | $58.3M | decrease | 2026-06-30 |
| Boston Financial Mangement LLC | 596,821 | $46.0M | decrease | 2024-12-31 |
| Park West Asset Management LLC | 3,106,339 | $43.1M | increase | 2026-06-30 |
| State Street | 2,779,367 | $38.6M | increase | 2026-06-30 |
| Vanguard Portfolio Management LLC | 2,384,929 | $33.1M | decrease | 2026-06-30 |
| EdgePoint Investment Group | 2,283,378 | $31.7M | unchanged | 2026-06-30 |
| Vanguard Capital Management LLC | 2,037,716 | $28.3M | decrease | 2026-06-30 |
| Newtyn Management, LLC | 1,655,895 | $23.0M | increase | 2026-06-30 |
| Geode Capital Management, LLC | 1,245,445 | $17.3M | increase | 2026-06-30 |
| Citadel Advisors LLC | 1,172,541 | $16.3M | increase | 2026-06-30 |
| Magnolia Group, LLC | 979,686 | $13.6M | decrease | 2026-06-30 |
| Goldman Sachs Group | 973,138 | $13.5M | increase | 2026-06-30 |
| Oakum Bay Capital LLC | 690,374 | $13.0M | increase | 2026-03-31 |
Cogent Communications Holdings' latest quarter
Cogent Communications Holdings, Q3 2026: revenue $231M (-4% year over year), operating margin -3.0%, net loss $29.8M, operating cash flow $3.8M. The chart follows the revenue to costs, profit and cash.
Questions
Who owns the most CCOI stock?
By the latest 13F filings: Vanguard Group ($120M); BlackRock ($102M); Turtle Creek Asset Management ($58.3M); Boston Financial Mangement LLC ($46.0M); Park West Asset Management LLC ($43.1M).
What is the short interest in CCOI?
7,108,242 shares were sold short at the 2026-10-15 settlement, 18.36% of the float.
Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.