Cogent Communications HoldinCCOI
13F holders, Q4 2025 (December 31)246holders −20
44new positions
71sold out
6famous investors
$21.56avg. 13F price*
At the end of Q4 2025, 246 institutions reported holding Cogent Communications Holdin (CCOI) in their 13F filings, down 20 from Q3 2025. 44 opened new positions and 71 sold out. The largest holders were BlackRock, Inc. ($155.0M), Vanguard Group Inc. ($120.3M) and Turtle Creek Asset Management Inc. ($87.0M). 6 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Cogent Communications Holdin
- CUSIP
- 19239V302
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 44 | $57.9M |
| Exits | 71 | $191.9M |
All 13F filers, Q3 2025 → Q4 2025: 9,343,278 shares bought and 11,716,547 shares sold, net −2,373,269 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 246 holders
| BlackRock, Inc. | 0.00% | Add +4.3% | 7,191,017 | $155.0M |
| Vanguard Group Inc. | 0.00% | Add +4.0% | 5,580,271 | $120.3M |
| Turtle Creek Asset Management Inc. | 3.83% | Reduce -12.3% | 4,036,847 | $87.0M |
| EdgePoint Investment Group Inc. | 0.40% | Add +0.1% | 2,283,378 | $49.2M |
| State Street Corp. | 0.00% | Add +6.8% | 2,070,132 | $44.6M |
| Park West Asset Management LLC | 2.56% | New | 1,409,096 | $30.4M |
| Harspring Capital Management, LLC | 11.22% | Add +60.3% | 1,402,500 | $30.2M |
| Newtyn Management, LLC | 3.19% | Add +100.0% | 1,400,000 | $30.2M |
| Morgan Stanley | 0.00% | Reduce -30.4% | 1,252,451 | $27.0M |
| Magnolia Group, LLC | 4.43% | Reduce -2.0% | 1,246,337 | $26.9M |
| Bank of America Corp. | 0.00% | Add +4.8% | 1,201,461 | $25.9M |
| Geode Capital Management, LLC | 0.00% | Add +2.8% | 1,179,231 | $25.4M |
| First Trust Advisors LP | 0.02% | Add +86.8% | 1,177,398 | $25.4M |
| FMR LLC | 0.00% | Add +265.3% | 815,939 | $17.6M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +16.0% | 666,932 | $14.4M |
| Broad Run Investment Management, LLC | 2.66% | Add +3.0% | 663,700 | $14.3M |
| BlackBarn Capital Partners LP | 5.02% | Add +73.3% | 650,000 | $14.0M |
| DigitalBridge Group, Inc. | 1.06% | Reduce -25.2% | 636,169 | $13.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +48.4% | 614,549 | $13.2M |
| CenterBook Partners LP | 0.63% | Add +254.5% | 601,735 | $13.0M |
| 683 Capital Management, LLC | 1.13% | Reduce -7.7% | 600,000 | $12.9M |
| MIG Capital, LLC | 2.08% | New | 569,220 | $12.3M |
| Oakum Bay Capital LLC | 6.07% | — | 543,582 | $11.7M |
| Royal Bank of Canada | 0.00% | Add +189.5% | 498,966 | $10.8M |
| Northern Trust Corp. | 0.00% | Reduce -1.3% | 498,973 | $10.8M |
| Gilder Gagnon Howe & Co. LLC | 0.11% | Add +186.5% | 494,108 | $10.7M |
| Palliser Capital (UK) Ltd | 6.26% | Add +94.8% | 426,184 | $9.2M |
| Frontier Capital Management Co. LLC | 0.08% | Add +32.0% | 345,803 | $7.5M |
| Man Group plc | 0.01% | Add +2685.1% | 326,168 | $7.0M |
| D. E. Shaw & Co. | 0.00% | Reduce -28.7% | 280,136 | $6.0M |
| Bank of New York Mellon Corp | 0.00% | Reduce -48.1% | 276,933 | $6.0M |
| Invesco Ltd. | 0.00% | Reduce -81.3% | 262,068 | $5.7M |
| Reaves W H & Co. Inc. | 0.10% | Reduce -38.8% | 259,098 | $5.6M |
| UBS Group AG | 0.00% | Reduce -34.0% | 248,555 | $5.4M |
| HERALD INVESTMENT MANAGEMENT Ltd | 0.68% | No change | 242,600 | $5.2M |
| Jane Street Group, LLC | 0.01% | Reduce -45.5% | 236,836 | $5.1M |
| Principal Financial Group Inc. | 0.00% | Reduce -1.1% | 227,044 | $4.9M |
| Boothbay Fund Management, LLC | 0.13% | Reduce -29.6% | 220,028 | $4.7M |
| Granahan Investment Management, LLC | 0.20% | Add +99.1% | 217,025 | $4.7M |
| Redmond Asset Management, LLC | 1.10% | Add +45.8% | 200,082 | $4.3M |
| Legal & General Group Plc | 0.00% | Reduce -0.4% | 198,994 | $4.3M |
| Advisors Asset Management, Inc. | 0.07% | Reduce -6.6% | 181,650 | $3.9M |
| Nishkama Capital, LLC | 0.52% | Add +70.0% | 179,661 | $3.9M |
| Blair William & Co. | 0.01% | Reduce -26.2% | 177,655 | $3.8M |
| 14B Captial Management LP | 2.95% | Reduce -62.2% | 170,000 | $3.7M |
| Nuveen, LLC | 0.00% | Add +3.0% | 169,700 | $3.7M |
| JPMorgan Chase & Co. | 0.00% | Reduce -68.8% | 168,603 | $3.6M |
| Citadel Advisors | 0.00% | Add +104.0% | 167,124 | $3.6M |
| Edgestream Partners, L.P. | 0.10% | Add +127.0% | 165,979 | $3.6M |
| Public Sector Pension Investment Board | 0.01% | Reduce -11.2% | 164,692 | $3.6M |
| Citigroup Inc. | 0.00% | Add +436.1% | 159,990 | $3.4M |
| Bluefin Capital Management, LLC | 0.96% | New | 158,005 | $3.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +1.3% | 149,747 | $3.2M |
| Rhumbline Advisers | 0.00% | Add +0.1% | 137,461 | $3.0M |
| Susquehanna International Group, LLP | 0.00% | Add +828.2% | 133,453 | $2.9M |
| Walleye Capital LLC | 0.01% | Add +58.6% | 101,408 | $2.2M |
| Swiss National Bank | 0.00% | Add +6.7% | 97,000 | $2.1M |
| Renaissance Technologies | 0.00% | Reduce -52.6% | 89,031 | $1.9M |
| Barclays PLC | 0.00% | Add +34.7% | 88,314 | $1.9M |
| Simplex Trading, LLC | 0.05% | New | 84,895 | $1.8M |
| Ameriprise Financial Inc. | 0.00% | Reduce -7.5% | 84,205 | $1.8M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.01% | Add +6.5% | 81,643 | $1.8M |
| Wells Fargo & Company | 0.00% | Reduce -19.7% | 78,661 | $1.7M |
| State of Wisconsin Investment Board | 0.00% | Reduce -38.7% | 75,154 | $1.6M |
| MYDA Advisors LLC | 0.46% | Add +733.3% | 75,000 | $1.6M |
| Vest Financial, LLC | 0.02% | Add +206.4% | 74,634 | $1.6M |
| New York State Teachers Retirement System | 0.00% | Add +44.5% | 73,710 | $1.6M |
| BNP Paribas Financial Markets | 0.00% | Add +119.7% | 70,345 | $1.5M |
| SG Americas Securities, LLC | 0.00% | Add +795.4% | 68,025 | $1.5M |
| Deutsche Bank AG | 0.00% | Add +8.6% | 65,741 | $1.4M |
| Skylands Capital, LLC | 0.18% | Reduce -42.1% | 61,575 | $1.3M |
| Quantinno Capital Management LP | 0.00% | Add +676.8% | 61,207 | $1.3M |
| Alliancebernstein L.P. | 0.00% | Add +16.1% | 57,464 | $1.2M |
| Brown Advisory Inc. | 0.00% | Reduce -94.7% | 52,952 | $1.1M |
| T. Rowe Price Associates Inc. | 0.00% | Add +28.4% | 51,298 | $1.1M |
| HRT Financial LP | 0.00% | New | 49,170 | $1.1M |
| Victory Capital Management Inc. | 0.00% | Add +46.3% | 46,412 | $1.0M |
| California State Teachers Retirement System | 0.00% | Add +0.4% | 46,077 | $993K |
| Bridgefront Capital, LLC | 0.24% | Add +377.5% | 45,198 | $974K |
| Caption Management, LLC | 0.04% | Add +100.0% | 45,000 | $970K |
| Prudential Financial Inc. | 0.00% | Reduce -6.0% | 44,945 | $969K |
| American Century Companies Inc. | 0.00% | Reduce -54.0% | 43,813 | $945K |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -29.8% | 39,225 | $846K |
| Millennium Management | 0.00% | Reduce -51.4% | 38,783 | $836K |
| WINTON GROUP Ltd | 0.03% | New | 35,604 | $768K |
| Dynamic Technology Lab Private Ltd | 0.17% | New | 35,226 | $759K |
| Prairieview Wealth Partners, LLC | 0.68% | Reduce -36.5% | 34,742 | $749K |
| Jump Financial, LLC | 0.01% | New | 34,468 | $743K |
| J. Goldman & Co LP | 0.03% | New | 33,500 | $722K |
| Thrivent Financial for Lutherans | 0.00% | Reduce -4.9% | 32,614 | $703K |
| Aquatic Capital Management LLC | 0.02% | Add +1419.5% | 31,255 | $674K |
| AQR Capital Management | 0.00% | Reduce -7.4% | 29,732 | $641K |
| TrueMark Investments, LLC | 0.12% | New | 29,662 | $640K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +52.3% | 28,868 | $622K |
| Clear Harbor Asset Management, LLC | 0.04% | Add +113.4% | 27,716 | $598K |
| MetLife Investment Management, LLC | 0.00% | No change | 26,100 | $563K |
| State of Alaska, Department of Revenue | 0.01% | Add +1.0% | 25,523 | $550K |
| Landscape Capital Management, L.L.C. | 0.04% | Add +185.6% | 24,594 | $530K |
| Creative Planning | 0.00% | Add +7.9% | 24,576 | $530K |
| Walleye Trading LLC | 0.01% | New | 24,298 | $524K |
"% of holder's portfolio" is CCOI's weight in each manager's 13F, not the share of Cogent Communications Holdin the manager owns.