Cogent Communications HoldinCCOI
13F holders, Q3 2025 (September 30)266holders −28
46new positions
72sold out
5famous investors
$38.35avg. 13F price*
At the end of Q3 2025, 266 institutions reported holding Cogent Communications Holdin (CCOI) in their 13F filings, down 28 from Q2 2025. 46 opened new positions and 72 sold out. The largest holders were BlackRock, Inc. ($264.3M), Vanguard Group Inc. ($205.7M) and Turtle Creek Asset Management Inc. ($176.6M). 5 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 Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 46 | $73.0M |
| Exits | 72 | $137.7M |
All 13F filers, Q2 2025 → Q3 2025: 10,574,105 shares bought and 8,684,832 shares sold, net +1,889,273 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 266 holders
| BlackRock, Inc. | 0.00% | Add +6.3% | 6,892,096 | $264.3M |
| Vanguard Group Inc. | 0.00% | Add +5.3% | 5,362,821 | $205.7M |
| Turtle Creek Asset Management Inc. | 5.33% | Add +64.9% | 4,603,933 | $176.6M |
| EdgePoint Investment Group Inc. | 0.65% | Add +0.1% | 2,281,878 | $87.5M |
| State Street Corp. | 0.00% | Add +8.4% | 1,937,678 | $74.3M |
| Morgan Stanley | 0.00% | Add +44.7% | 1,800,533 | $69.1M |
| Invesco Ltd. | 0.01% | Add +39.8% | 1,402,612 | $53.8M |
| Magnolia Group, LLC | 7.74% | Add +16.4% | 1,272,337 | $48.8M |
| Geode Capital Management, LLC | 0.00% | Add +8.2% | 1,147,507 | $44.0M |
| Bank of America Corp. | 0.00% | Add +551.2% | 1,146,417 | $44.0M |
| Brown Advisory Inc. | 0.05% | Reduce -30.8% | 1,006,325 | $38.6M |
| Tyro Capital Management LLC | 13.32% | Add +46.9% | 935,287 | $35.9M |
| Harspring Capital Management, LLC | 12.85% | Add +2.4% | 875,000 | $33.6M |
| DigitalBridge Group, Inc. | 2.67% | Add +45.8% | 850,073 | $32.6M |
| Newtyn Management, LLC | 3.29% | Add +12.0% | 700,000 | $26.8M |
| 683 Capital Management, LLC | 2.37% | Add +132.1% | 650,000 | $24.9M |
| Broad Run Investment Management, LLC | 4.04% | Reduce -5.0% | 644,030 | $24.7M |
| First Trust Advisors LP | 0.02% | Add +84.2% | 630,210 | $24.2M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +16.2% | 575,134 | $22.1M |
| JPMorgan Chase & Co. | 0.00% | Add +369.3% | 539,770 | $20.7M |
| Bank of New York Mellon Corp | 0.00% | Add +3.0% | 534,049 | $20.5M |
| Capital World Investors | 0.00% | Reduce -44.7% | 528,382 | $20.3M |
| Northern Trust Corp. | 0.00% | Reduce -2.7% | 505,279 | $19.4M |
| Senator Investment Group LP | 0.68% | Reduce -23.5% | 483,295 | $18.5M |
| 14B Captial Management LP | 10.09% | Reduce -10.8% | 449,633 | $17.2M |
| Jane Street Group, LLC | 0.02% | Add +740.6% | 434,878 | $16.7M |
| Reaves W H & Co. Inc. | 0.29% | Reduce -48.4% | 423,098 | $16.2M |
| Goldman Sachs Group Inc. | 0.00% | Add +11.2% | 414,263 | $15.9M |
| D. E. Shaw & Co. | 0.01% | New | 393,129 | $15.1M |
| UBS Group AG | 0.00% | Add +203.3% | 376,582 | $14.4M |
| BlackBarn Capital Partners LP | 4.69% | Add +56.3% | 375,000 | $14.4M |
| Jennison Associates LLC | 0.01% | Add +5.8% | 342,316 | $13.1M |
| Captrust Financial Advisors | 0.03% | Reduce -35.9% | 336,061 | $12.9M |
| Ulysses Management LLC | 3.00% | Reduce -9.7% | 335,982 | $12.9M |
| Boothbay Fund Management, LLC | 0.32% | Add +123.4% | 312,626 | $12.0M |
| Medina Value Partners, LLC | 2.48% | New | 277,172 | $10.6M |
| Frontier Capital Management Co. LLC | 0.09% | Add +59.1% | 262,020 | $10.0M |
| M&G PLC | 0.05% | Reduce -32.0% | 256,041 | $9.7M |
| Verition Fund Management LLC | 0.06% | Add +78.7% | 253,486 | $9.7M |
| HERALD INVESTMENT MANAGEMENT Ltd | 1.24% | Add +16.9% | 242,600 | $9.3M |
| Blair William & Co. | 0.02% | Add +1.8% | 240,796 | $9.2M |
| Principal Financial Group Inc. | 0.00% | Add +9.0% | 229,646 | $8.8M |
| FMR LLC | 0.00% | Reduce -75.0% | 223,372 | $8.6M |
| Palliser Capital (UK) Ltd | 6.15% | New | 218,750 | $8.4M |
| Ceredex Value Advisors LLC | 0.18% | No change | 206,800 | $7.9M |
| Legal & General Group Plc | 0.00% | Add +0.8% | 199,757 | $7.7M |
| Advisors Asset Management, Inc. | 0.13% | Add +3.5% | 194,425 | $7.5M |
| Renaissance Technologies | 0.01% | Reduce -59.0% | 187,987 | $7.2M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.01% | Reduce -2.9% | 186,631 | $7.2M |
| Public Sector Pension Investment Board | 0.03% | Add +28.1% | 185,402 | $7.1M |
| ProShare Advisors LLC | 0.01% | Add +30.1% | 177,113 | $6.8M |
| Gilder Gagnon Howe & Co. LLC | 0.07% | New | 172,488 | $6.6M |
| Royal Bank of Canada | 0.00% | Add +57.5% | 172,359 | $6.6M |
| CenterBook Partners LP | 0.32% | New | 169,761 | $6.5M |
| Nuveen, LLC | 0.00% | Add +45.1% | 164,695 | $6.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -30.3% | 147,837 | $5.7M |
| Emerald Advisers, LLC | 0.18% | Reduce -40.4% | 144,912 | $5.6M |
| Rhumbline Advisers | 0.00% | Add +4.7% | 137,265 | $5.3M |
| Redmond Asset Management, LLC | 1.29% | Reduce -2.9% | 137,254 | $5.3M |
| State of Wisconsin Investment Board | 0.01% | Add +1.4% | 122,518 | $4.7M |
| Granahan Investment Management, LLC | 0.17% | Reduce -51.5% | 108,989 | $4.2M |
| Skylands Capital, LLC | 0.56% | Add +2.6% | 106,325 | $4.1M |
| Nishkama Capital, LLC | 0.36% | New | 105,705 | $4.1M |
| Marshall Wace, LLP | 0.00% | New | 104,906 | $4.0M |
| CIBC Private Wealth Group LLC | 0.01% | Reduce -2.0% | 103,715 | $4.0M |
| Wells Fargo & Company | 0.00% | Add +13.3% | 97,936 | $3.8M |
| Resources Management Corp. /CT/ | 0.48% | Add +66.4% | 96,507 | $3.7M |
| American Century Companies Inc. | 0.00% | Add +11.2% | 95,296 | $3.7M |
| Beaconlight Capital, LLC | 1.76% | Reduce -26.7% | 92,910 | $3.6M |
| Ameriprise Financial Inc. | 0.00% | Add +3.1% | 91,042 | $3.5M |
| Swiss National Bank | 0.00% | Add +1.4% | 90,900 | $3.5M |
| Emerald Mutual Fund Advisers Trust | 0.17% | Reduce -39.5% | 87,356 | $3.4M |
| Madison Asset Management, LLC | 0.04% | Reduce -9.3% | 83,719 | $3.2M |
| Citadel Advisors | 0.00% | Reduce -67.3% | 81,905 | $3.1M |
| Millennium Management | 0.00% | Add +279.0% | 79,739 | $3.1M |
| Oppenheimer & Co. Inc. | 0.04% | Add +22.2% | 78,361 | $3.0M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.01% | Add +4.8% | 76,645 | $2.9M |
| Taylor Frigon Capital Management LLC | 1.40% | Add +116.4% | 73,271 | $2.8M |
| Edgestream Partners, L.P. | 0.08% | Reduce -9.7% | 73,105 | $2.8M |
| Advantage Alpha Capital Partners LP | 0.80% | Reduce -21.3% | 68,826 | $2.6M |
| Holocene Advisors, LP | 0.01% | Add +60.2% | 68,150 | $2.6M |
| Barclays PLC | 0.00% | Reduce -28.2% | 65,573 | $2.5M |
| Inspire Advisors, LLC | 0.24% | Add +19.7% | 64,875 | $2.5M |
| Walleye Capital LLC | 0.02% | New | 63,920 | $2.5M |
| Qube Research & Technologies Ltd | 0.00% | Reduce -91.0% | 61,841 | $2.4M |
| Deutsche Bank AG | 0.00% | Add +8.5% | 60,554 | $2.3M |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +14.5% | 55,880 | $2.1M |
| Algert Global LLC | 0.04% | Add +50.1% | 55,520 | $2.1M |
| Harber Asset Management LLC | 0.78% | New | 54,944 | $2.1M |
| Prairieview Wealth Partners, LLC | 1.97% | Add +374.3% | 54,742 | $2.1M |
| CPC Advisors, LLC | 0.21% | Add +188.9% | 52,218 | $2.0M |
| New York State Teachers Retirement System | 0.00% | No change | 51,010 | $2.0M |
| Atom Investors LP | 0.14% | Add +2.1% | 49,792 | $1.9M |
| Alliancebernstein L.P. | 0.00% | Reduce -5.0% | 49,517 | $1.9M |
| Prudential Financial Inc. | 0.00% | Add +8.1% | 47,809 | $1.8M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | New | 46,768 | $1.8M |
| California State Teachers Retirement System | 0.00% | Add +14.3% | 45,880 | $1.8M |
| Ipswich Investment Management Co., Inc. | 0.40% | Add +0.8% | 44,259 | $1.7M |
| T. Rowe Price Associates Inc. | 0.00% | Add +4.2% | 39,936 | $1.5M |
| Schonfeld Strategic Advisors LLC | 0.01% | New | 36,936 | $1.4M |
"% of holder's portfolio" is CCOI's weight in each manager's 13F, not the share of Cogent Communications Holdin the manager owns.