Cogent Communications HoldinCCOI
13F holders, Q2 2025 (June 30)294holders −26
35new positions
61sold out
4famous investors
$48.22avg. 13F price*
At the end of Q2 2025, 294 institutions reported holding Cogent Communications Holdin (CCOI) in their 13F filings, down 26 from Q1 2025. 35 opened new positions and 61 sold out. The largest holders were BlackRock, Inc. ($312.4M), Vanguard Group Inc. ($245.5M) and Turtle Creek Asset Management Inc. ($134.6M). 4 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Cogent Communications Holdin
- CUSIP
- 19239V302
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 35 | $87.4M |
| Exits | 61 | $168.7M |
All 13F filers, Q1 2025 → Q2 2025: 7,956,272 shares bought and 5,444,388 shares sold, net +2,511,884 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 294 holders
| BlackRock, Inc. | 0.01% | Reduce -1.9% | 6,480,544 | $312.4M |
| Vanguard Group Inc. | 0.00% | Add +0.7% | 5,091,846 | $245.5M |
| Turtle Creek Asset Management Inc. | 3.91% | Add +1628.4% | 2,792,711 | $134.6M |
| EdgePoint Investment Group Inc. | 0.83% | Add +13.3% | 2,279,440 | $109.9M |
| State Street Corp. | 0.00% | Add +0.8% | 1,788,235 | $86.2M |
| Brown Advisory Inc. | 0.09% | Reduce -13.0% | 1,454,101 | $70.1M |
| Morgan Stanley | 0.00% | Add +35.9% | 1,244,015 | $60.0M |
| Magnolia Group, LLC | 8.10% | New | 1,093,211 | $52.7M |
| Geode Capital Management, LLC | 0.00% | Add +1.9% | 1,060,367 | $51.1M |
| MIG Capital, LLC | 5.22% | Add +6.9% | 1,029,237 | $49.6M |
| Invesco Ltd. | 0.01% | Add +84.2% | 1,003,273 | $48.4M |
| Thrivent Financial for Lutherans | 0.11% | Reduce -4.7% | 991,351 | $47.8M |
| Capital World Investors | 0.01% | No change | 955,288 | $46.1M |
| FMR LLC | 0.00% | Add +7.1% | 894,848 | $43.1M |
| Harspring Capital Management, LLC | 14.50% | Reduce -3.4% | 854,797 | $41.2M |
| Reaves W H & Co. Inc. | 0.88% | Add +1.5% | 819,953 | $39.5M |
| Qube Research & Technologies Ltd | 0.05% | Add +144.2% | 687,839 | $33.2M |
| Broad Run Investment Management, LLC | 5.01% | Reduce -2.9% | 677,886 | $32.7M |
| Tyro Capital Management LLC | 12.04% | Add +29.4% | 636,895 | $30.7M |
| Senator Investment Group LP | 1.18% | Add +7.7% | 631,692 | $30.5M |
| Newtyn Management, LLC | 4.57% | Add +19.1% | 625,000 | $30.1M |
| DigitalBridge Group, Inc. | 2.84% | Reduce -40.2% | 582,974 | $28.1M |
| Captrust Financial Advisors | 0.06% | Reduce -2.8% | 523,836 | $25.3M |
| Northern Trust Corp. | 0.00% | Reduce -1.3% | 519,244 | $25.0M |
| Bank of New York Mellon Corp | 0.00% | Reduce -1.2% | 518,362 | $25.0M |
| 14B Captial Management LP | 9.98% | Add +12.5% | 504,000 | $24.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -1.8% | 494,924 | $23.9M |
| Raymond James Financial Inc. | 0.01% | Reduce -3.1% | 494,051 | $23.8M |
| Renaissance Technologies | 0.03% | Reduce -28.9% | 458,056 | $22.1M |
| M&G PLC | 0.10% | Add +16.5% | 376,497 | $18.1M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -21.8% | 372,441 | $18.0M |
| Ulysses Management LLC | 3.87% | No change | 372,166 | $17.9M |
| First Trust Advisors LP | 0.01% | Add +29.7% | 342,131 | $16.5M |
| Jennison Associates LLC | 0.01% | Add +8.2% | 323,511 | $15.6M |
| SG Capital Management LLC | 1.28% | Add +22.6% | 313,250 | $15.1M |
| 683 Capital Management, LLC | 1.45% | Reduce -5.1% | 280,000 | $13.5M |
| Citadel Advisors | 0.01% | Add +389.6% | 250,845 | $12.1M |
| Emerald Advisers, LLC | 0.43% | Add +4.7% | 243,212 | $11.7M |
| BlackBarn Capital Partners LP | 3.83% | Add +26.3% | 240,000 | $11.6M |
| Blair William & Co. | 0.03% | Add +16.3% | 236,520 | $11.4M |
| River Road Asset Management, LLC | 0.14% | Add +0.6% | 242,051 | $11.0M |
| Granahan Investment Management, LLC | 0.44% | Add +21.0% | 224,491 | $10.8M |
| Park West Asset Management LLC | 0.81% | New | 221,300 | $10.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +31.1% | 212,126 | $10.2M |
| Principal Financial Group Inc. | 0.01% | Reduce -0.1% | 210,688 | $10.2M |
| HERALD INVESTMENT MANAGEMENT Ltd | 1.48% | Add +3.5% | 207,600 | $10.0M |
| Ceredex Value Advisors LLC | 0.21% | Add +44.6% | 206,800 | $10.0M |
| Legal & General Group Plc | 0.00% | Add +0.2% | 198,133 | $9.6M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.02% | Add +4.4% | 192,143 | $9.3M |
| Advisors Asset Management, Inc. | 0.16% | Add +2.0% | 187,919 | $9.1M |
| Intrinsic Edge Capital Management LLC | 1.31% | New | 180,000 | $8.7M |
| Bank of America Corp. | 0.00% | Add +42.7% | 176,050 | $8.5M |
| Frontier Capital Management Co. LLC | 0.07% | Reduce -0.3% | 164,679 | $7.9M |
| Public Sector Pension Investment Board | 0.03% | Add +8.1% | 144,696 | $7.0M |
| Emerald Mutual Fund Advisers Trust | 0.42% | No change | 144,344 | $7.0M |
| Verition Fund Management LLC | 0.04% | Add +30.7% | 141,827 | $6.8M |
| Redmond Asset Management, LLC | 1.63% | Add +9.0% | 141,383 | $6.8M |
| Boothbay Fund Management, LLC | 0.21% | Add +27.9% | 139,950 | $6.7M |
| ProShare Advisors LLC | 0.01% | Add +24.4% | 136,143 | $6.6M |
| Rhumbline Advisers | 0.01% | Add +5.8% | 131,147 | $6.3M |
| Beaconlight Capital, LLC | 3.58% | Reduce -53.8% | 126,737 | $6.1M |
| UBS Group AG | 0.00% | Add +0.5% | 124,155 | $6.0M |
| State of Wisconsin Investment Board | 0.01% | Reduce -2.3% | 120,837 | $5.8M |
| JPMorgan Chase & Co. | 0.00% | Reduce -13.2% | 115,024 | $5.5M |
| Nuveen, LLC | 0.00% | Reduce -11.4% | 113,526 | $5.5M |
| Royal Bank of Canada | 0.00% | Add +205.7% | 109,458 | $5.3M |
| CIBC Private Wealth Group LLC | 0.01% | Add +20.6% | 105,870 | $5.1M |
| Skylands Capital, LLC | 0.72% | Add +27.4% | 103,650 | $5.0M |
| Susquehanna International Group, LLP | 0.01% | Add +61.1% | 103,057 | $5.0M |
| Madison Asset Management, LLC | 0.05% | Add +13.5% | 92,256 | $4.4M |
| Barclays PLC | 0.00% | Add +48.8% | 91,299 | $4.4M |
| Swiss National Bank | 0.00% | Reduce -0.8% | 89,600 | $4.3M |
| Ameriprise Financial Inc. | 0.00% | Reduce -88.2% | 88,263 | $4.3M |
| Advantage Alpha Capital Partners LP | 1.14% | Reduce -1.4% | 87,402 | $4.2M |
| Wells Fargo & Company | 0.00% | Add +2.6% | 86,403 | $4.2M |
| American Century Companies Inc. | 0.00% | Add +624.8% | 85,697 | $4.1M |
| Edgestream Partners, L.P. | 0.11% | Reduce -29.8% | 80,940 | $3.9M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.02% | Add +2.8% | 73,122 | $3.5M |
| Prudential Financial Inc. | 0.00% | Add +6.6% | 44,239 | $3.4M |
| Oppenheimer & Co. Inc. | 0.04% | Add +3.9% | 64,110 | $3.1M |
| Asset Management One Co., Ltd. | 0.01% | Add +43.9% | 63,555 | $3.1M |
| Hussman Strategic Advisors, Inc. | 0.69% | Add +200.0% | 63,000 | $3.0M |
| Crescent Park Management, L.P. | 1.28% | Reduce -19.1% | 62,368 | $3.0M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -2.3% | 60,647 | $2.9M |
| LPL Financial LLC | 0.00% | Add +26.4% | 59,324 | $2.9M |
| Resources Management Corp. /CT/ | 0.38% | Add +7241.4% | 57,997 | $2.8M |
| Deutsche Bank AG | 0.00% | Reduce -11.2% | 55,801 | $2.7M |
| Dark Forest Capital Management LP | 0.11% | New | 54,788 | $2.6M |
| Inspire Advisors, LLC | 0.27% | Add +42.8% | 54,202 | $2.6M |
| Y-Intercept (Hong Kong) Ltd | 0.06% | Add +363.3% | 52,355 | $2.5M |
| Alliancebernstein L.P. | 0.00% | Reduce -0.8% | 52,150 | $2.5M |
| Jane Street Group, LLC | 0.00% | Reduce -70.3% | 51,732 | $2.5M |
| New York State Teachers Retirement System | 0.01% | Add +0.2% | 51,010 | $2.5M |
| Lanark Financial, Inc. | 0.20% | Add +2.3% | 50,056 | $2.4M |
| Intech Investment Management LLC | 0.02% | Add +1.3% | 49,371 | $2.4M |
| GLOBALT Investments LLC / GA | 0.09% | Reduce -5.0% | 49,360 | $2.4M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -1.1% | 48,801 | $2.4M |
| Atom Investors LP | 0.21% | Add +11.1% | 48,756 | $2.4M |
| Citigroup Inc. | 0.00% | Reduce -26.7% | 47,795 | $2.3M |
| Azimuth Capital Investment Management LLC | 0.08% | Reduce -1.2% | 44,655 | $2.2M |
"% of holder's portfolio" is CCOI's weight in each manager's 13F, not the share of Cogent Communications Holdin the manager owns.