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

0100200300400 Q1 2024: 315Q1 2024Q2 2024: 310Q2 2024Q3 2024: 316Q3 2024Q4 2024: 314Q4 2024Q1 2025: 320Q1 2025Q2 2025: 294Q2 2025Q3 2025: 266Q3 2025Q4 2025: 246Q4 2025Q1 2026: 233Q1 2026Q2 2026: 224Q2 2026

Total Exit/New Position Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions46$73.0M
Exits72$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
Intech Investment Management LLC 0.01% Reduce -26.3% 36,379 $1.4M
LPL Financial LLC 0.00% Reduce -40.0% 35,626 $1.4M
Thrivent Financial for Lutherans 0.00% Reduce -96.5% 34,287 $1.3M
PNC Financial Services Group, Inc. 0.00% Reduce -6.9% 34,217 $1.3M
Trexquant Investment LP 0.01% New 33,433 $1.3M
Osaic Holdings, Inc. 0.00% Add +8.4% 32,759 $1.3M
Sei Investments Co. 0.00% Reduce -12.1% 32,289 $1.2M
AQR Capital Management 0.00% Add +536.4% 32,123 $1.2M
BNP Paribas Financial Markets 0.00% Add +82.2% 32,019 $1.2M
Victory Capital Management Inc. 0.00% Add +302.2% 31,727 $1.2M
NewEdge Advisors, LLC 0.01% Add +277.8% 31,161 $1.2M
Citigroup Inc. 0.00% Reduce -37.6% 29,842 $1.1M
Rangeley Capital, LLC 1.10% New 29,700 $1.1M
Salvus Wealth Management, LLC 0.58% Reduce -4.7% 26,873 $1.0M
MetLife Investment Management, LLC 0.00% Reduce -4.5% 26,100 $1.0M
Guggenheim Capital LLC 0.01% Add +8.4% 26,038 $999K
State of Alaska, Department of Revenue 0.01% Reduce -0.0% 25,269 $969K
Aristeia Capital, L.L.C. 0.05% New 24,549 $941K
Macquarie Group Ltd. 0.00% Add +35.1% 24,525 $941K
Vest Financial, LLC 0.01% Add +139.3% 24,358 $934K
Farringdon Capital, Ltd. 0.23% New 23,371 $896K
Texas Yale Capital Corp. 0.03% No change 23,000 $882K
Creative Planning 0.00% Add +14.2% 22,770 $873K
Manufacturers Life Insurance Company, The 0.00% Reduce -3.9% 22,739 $872K
Caption Management, LLC 0.05% New 22,500 $863K
Asset Management One Co., Ltd. 0.00% Reduce -65.2% 22,095 $847K
Louisiana State Employees Retirement System 0.01% Add +10.1% 21,800 $836K
Janus Henderson Group PLC 0.00% No change 21,111 $810K
Cetera Investment Advisers 0.00% Add +49.1% 20,898 $801K
RBF Capital, LLC 0.04% No change 20,000 $767K
Hennion & Walsh Asset Management, Inc. 0.03% Reduce -0.4% 19,434 $745K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +53.5% 18,959 $727K
ARS Investment Partners, LLC 0.04% Add +68.7% 17,708 $679K
Triton Financial Group Inc 0.43% Add +6.2% 16,859 $647K
Raymond James Financial Inc. 0.00% Reduce -96.6% 16,786 $644K
New York State Common Retirement Fund 0.00% No change 15,769 $605K
Van Eck Associates Corp. 0.00% Add +12.6% 14,691 $563K
Yousif Capital Management, LLC 0.01% Reduce -8.2% 14,518 $557K
Susquehanna International Group, LLP 0.00% Reduce -86.0% 14,378 $551K
Handelsbanken Fonder AB 0.00% Add +42.7% 14,030 $538K
Comerica Bank 0.00% Reduce -10.0% 13,908 $533K
Arizona State Retirement System 0.00% Add +1.1% 13,824 $530K
Amalgamated Bank 0.00% Add +12.1% 13,635 $523K
Clear Harbor Asset Management, LLC 0.04% Reduce -11.9% 12,990 $498K
Police & Firemen's Retirement System of New Jersey 0.00% Add +25.2% 12,447 $477K
Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% New 12,159 $466K
Teachers Retirement System of the State of Kentucky 0.00% Reduce -5.1% 12,062 $462K
Pathstone Holdings, LLC 0.00% Reduce -38.1% 11,979 $459K
Mercer Global Advisors Inc. 0.00% New 11,786 $452K
Man Group plc 0.00% New 11,711 $449K
Yorktown Management & Research Co Inc 0.36% New 11,700 $449K
Oregon Public Employees Retirement Fund 0.01% Add +10.3% 10,723 $411K
State of Tennessee, Department of Treasury 0.00% No change 10,542 $404K
Ensign Peak Advisors, Inc 0.00% Reduce -41.2% 10,509 $403K
Russell Investments Group, Ltd. 0.00% Reduce -43.4% 10,481 $402K
Global Endowment Management, LP 0.05% Add +89.5% 10,465 $401K
US Bancorp \de 0.00% Reduce -3.4% 10,393 $399K
KLP Kapitalforvaltning As 0.00% No change 10,300 $395K
Toronto Dominion Bank 0.00% New 9,857 $378K
Freestone Grove Partners LP 0.00% Reduce -70.0% 9,652 $370K
Bridgefront Capital, LLC 0.11% Reduce -11.3% 9,466 $363K
HSBC Holdings PLC 0.00% Reduce -47.7% 9,098 $346K
MYDA Advisors LLC 0.10% Add +12.5% 9,000 $345K
QRG Capital Management, Inc. 0.00% New 8,959 $344K
Citizens Financial Group Inc. 0.00% New 8,656 $332K
Landscape Capital Management, L.L.C. 0.02% New 8,613 $330K
Voya Investment Management LLC 0.00% Reduce -33.1% 8,163 $313K
Nisa Investment Advisors, LLC 0.00% Add +57.5% 7,970 $306K
Quantinno Capital Management LP 0.00% New 7,879 $302K
iSAM Funds (UK) Ltd 0.06% New 7,866 $302K
SG Americas Securities, LLC 0.00% New 7,597 $291K
Envestnet Portfolio Solutions, Inc. 0.00% Add +3.6% 7,534 $289K
First Citizens Bank & Trust Co. 0.01% Reduce -4.7% 7,033 $270K
Group One Trading LLC 0.01% New 6,888 $264K
Keybank National Association 0.00% Add +5.7% 6,835 $262K
Maryland State Retirement & Pension System 0.01% Reduce -45.2% 6,832 $262K
Amundi 0.00% Reduce -0.1% 6,021 $258K
Pictet Asset Management Holding SA 0.00% No change 6,610 $253K
Public Employees Retirement Association of Colorado 0.00% No change 6,256 $240K
SBI Securities Co., Ltd. 0.01% Reduce -0.8% 6,238 $239K
Teacher Retirement System of Texas 0.00% Reduce -13.7% 6,145 $236K
Jefferies Financial Group Inc. 0.00% New 6,063 $233K
Mutual of America Capital Management LLC 0.00% Reduce -2.3% 5,324 $204K
Wolverine Asset Management LLC 0.01% No change 3,953 $152K
Ameritas Investment Partners, Inc. 0.00% Reduce -15.7% 3,763 $144K
Arax Advisory Partners 0.00% Reduce -22.7% 3,369 $129K
Cwm, LLC 0.00% Add +134.0% 3,229 $124K
Covestor Ltd 0.06% Add +34.0% 2,705 $104K
Federation des caisses Desjardins du Quebec 0.00% Add +212.9% 2,425 $93K
North Star Investment Management Corp. 0.01% No change 2,298 $88K
MAI Capital Management 0.00% Add +536.5% 2,215 $85K
New Age Alpha Advisors, LLC 0.00% No change 2,096 $80K
Aquatic Capital Management LLC 0.00% New 2,057 $79K
Towarzystwo Funduszy Inwestycyjnych Pzu SA 0.02% Reduce -18.7% 1,910 $73K
Tower Research Capital LLC (TRC) 0.00% Reduce -76.3% 1,852 $71K
KBC Group NV 0.00% No change 1,761 $68K
Versant Capital Management, Inc 0.01% Add +333.7% 1,557 $60K
Farther Finance Advisors, LLC 0.00% Add +80.5% 1,336 $51K
Jones Financial Companies LLLP 0.00% Add +1.1% 1,173 $46K
AlphaQuest LLC 0.00% Reduce -87.0% 1,180 $45K
Northwestern Mutual Wealth Management Co. 0.00% Add +21.4% 1,005 $39K
CI Investments Inc. 0.00% No change 1,000 $38K
Principal Securities, Inc. 0.00% Add +1461.3% 968 $37K
Wealthspire Advisors, LLC 0.00% New 883 $34K
Atlantic Union Bankshares Corp 0.00% No change 824 $32K
Quarry LP 0.01% New 704 $27K
Rockefeller Capital Management L.P. 0.00% New 671 $26K
Smartleaf Asset Management LLC 0.00% Reduce -40.4% 669 $26K
BankPlus Trust Department 0.01% No change 662 $25K
Oakworth Capital, Inc. 0.00% New 595 $23K
Pin Oak Investment Advisors Inc. 0.02% No change 590 $23K
Public Employees Retirement System of Ohio 0.00% Add +21.8% 576 $22K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% Add +3.6% 577 $22K
Parallel Advisors, LLC 0.00% Reduce -13.6% 567 $22K
IFP Advisors, Inc 0.00% Add +17.1% 542 $21K
Danske Bank A/S 0.00% No change 500 $19K
Fifth Third Bancorp 0.00% Reduce -66.9% 430 $16K
Advisory Services Network, LLC 0.00% New 415 $16K
GAMMA Investing LLC 0.00% Add +11.8% 399 $15K
Steward Partners Investment Advisory, LLC 0.00% Reduce -13.7% 391 $15K
Salomon & Ludwin, LLC 0.00% New 346 $14K
Signaturefd, LLC 0.00% Add +253.3% 371 $14K
Hantz Financial Services, Inc. 0.00% Add +1395.8% 359 $14K
Nomura Asset Management Co. Ltd. 0.00% No change 300 $12K
Caitlin John, LLC 0.01% New 295 $11K
Sunbelt Securities, Inc. 0.00% New 286 $11K
Lanark Financial, Inc. 0.00% Reduce -99.5% 230 $9K
Bessemer Group Inc. 0.00% Reduce -37.9% 215 $8K
Optiver Holding B.V. 0.00% New 186 $7K
Allworth Financial LP 0.00% Add +229.1% 181 $7K
EverSource Wealth Advisors, LLC 0.00% Add +120.8% 170 $7K
UMB Bank, n.a. 0.00% Reduce -7.3% 164 $6K
Federated Hermes, Inc. 0.00% New 159 $6K
AdvisorNet Financial, Inc 0.00% No change 150 $6K
Mitsubishi UFJ Asset Management Co., Ltd. 0.00% No change 133 $5K
Private Wealth Management Group, LLC 0.00% Add +457.1% 117 $4K
Rise Advisors, LLC 0.00% No change 113 $4K
Sterling Capital Management LLC 0.00% No change 109 $4K
HHM Wealth Advisors, LLC 0.00% New 100 $4K
Quadrant Capital Group LLC 0.00% New 89 $3K
Bare Financial Services, Inc 0.00% Add +221.7% 74 $3K
Key Financial Inc 0.00% No change 66 $3K
MassMutual Private Wealth & Trust, FSB 0.00% Reduce -39.4% 63 $2K
Millstone Evans Group, LLC 0.00% No change 59 $2K
National Bank of Canada 0.00% New 53 $2K
Essential Partners LLC 0.00% Add +1175.0% 51 $2K
Ameritas Advisory Services, LLC 0.00% Reduce -37.5% 50 $2K
Copeland Capital Management, LLC 0.00% Reduce -83.5% 50 $2K
Prestige Wealth Management Group LLC 0.00% Reduce -43.1% 41 $2K
Brown Brothers Harriman & Co. 0.00% No change 34 $1K
Rothschild Investment LLC 0.00% Reduce -40.0% 30 $1K
Clearstead Trust, LLC 0.00% No change 29 $1K
Global Retirement Partners, LLC 0.00% Add +3.7% 28 $1K
Farmers & Merchants Investments Inc. 0.00% No change 27 $1K
Huntington National Bank 0.00% Reduce -93.9% 24 $920
Parkside Financial Bank & Trust 0.00% Reduce -86.8% 20 $768
JPL Wealth Management, LLC 0.00% New 20 $767
Tortoise Investment Management, LLC 0.00% No change 20 $767
Bell Investment Advisors, Inc 0.00% Reduce -33.3% 20 $767
ORG Partners LLC 0.00% No change 20 $767
Kilter Group LLC 0.00% New 9 $346
Retirement Wealth Solutions LLC 0.00% Add +300.0% 8 $298
True Wealth Design, LLC 0.00% New 7 $269
First Horizon Corp. 0.00% — 6 $230
Blue Trust, Inc. 0.00% Reduce -93.8% 6 $230
Abound Wealth Management 0.00% No change 2 $77

"% of holder's portfolio" is CCOI's weight in each manager's 13F, not the share of Cogent Communications Holdin the manager owns.