Who owns COGENT COMMUNICATIONS HOLDINGS, INC.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of CCOI from SEC Form 13F filings across 224 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 224 institutions disclosed 47.3M shares of COGENT COMMUNICATIONS HOLDINGS, INC. worth $656.2M — about 98.6% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
224
13F holders
$656.2M
value, 2026 filers
98.6%
of shares outstanding (47.3M sh)
43
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of CCOI's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 7.4M | $102.4M | 0.0% | 15.4% | +4.3% |
| 2 | TURTLE CREEK ASSET MANAGEMENT INC. | 4.2M | $58.3M | 2.3% | 8.8% | -3.3% |
| 3 | Park West Asset Management LLC | 3.1M | $43.1M | 2.9% | 6.5% | +60.5% |
| 4 | STATE STREET CORP | 2.8M | $38.6M | 0.0% | 5.8% | +22.3% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.4M | $33.1M | 0.0% | 5% | -13.2% |
| 6 | EdgePoint Investment Group Inc. | 2.3M | $31.7M | 0.2% | 4.8% | 0.0% |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 2.0M | $28.3M | 0.0% | 4.3% | -3.9% |
| 8 | Newtyn Management, LLC | 1.7M | $23.0M | 2.9% | 3.5% | +3.5% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 1.2M | $17.3M | 0.0% | 2.6% | +3.3% |
| 10 | CITADEL ADVISORS LLC | 1.2M | $16.3M | 0.0% | 2.4% | +175.1% |
| 11 | MAGNOLIA GROUP, LLC | 979,686 | $13.6M | 2.9% | 2% | -24.1% |
| 12 | GOLDMAN SACHS GROUP INC | 973,138 | $13.5M | 0.0% | 2% | +36.5% |
| 13 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 805,244 | $11.2M | 0.0% | 1.7% | +5.9% |
| 14 | GILDER GAGNON HOWE & CO LLC | 783,783 | $10.9M | 0.1% | 1.6% | +57.0% |
| 15 | Broad Run Investment Management, LLC | 660,130 | $9.2M | 1.4% | 1.4% | -0.5% |
| 16 | MORGAN STANLEY | 627,593 | $8.7M | 0.0% | 1.3% | -66.7% |
| 17 | AQR CAPITAL MANAGEMENT LLC | 615,561 | $8.5M | 0.0% | 1.3% | +193.3% |
| 18 | Harspring Capital Management, LLC | 599,418 | $8.3M | 15.5% | 1.3% | -44.9% |
| 19 | HRT FINANCIAL LP | 557,674 | $7.7M | 0.0% | 1.2% | +9.5% |
| 20 | NORTHERN TRUST CORP | 516,683 | $7.2M | 0.0% | 1.1% | +3.9% |
| 21 | UBS Group AG | 512,618 | $7.1M | 0.0% | 1.1% | +20.3% |
| 22 | CenterBook Partners LP | 503,457 | $7.0M | 0.3% | 1.1% | +1.9% |
| 23 | AYAL Capital Advisors LtdNEW | 400,000 | $5.6M | 1.5% | 0.8% | new |
| 24 | FRONTIER CAPITAL MANAGEMENT CO LLC | 382,608 | $5.3M | 0.0% | 0.8% | -4.2% |
| 25 | VANGUARD FIDUCIARY TRUST CO | 344,108 | $4.8M | 0.0% | 0.7% | +2.9% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.