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Cogent Communications Holdings, Inc.

CCOI
Exchange
Nasdaq
Industry
Communications Services, NEC
SEC CIK
0001158324

In the last 90 days, Cogent Communications Holdings, Inc. insiders filed 0 open-market purchases and 2 sales; 224 institutions reported holding it in 13F filings for Q2 2026, worth $656.2M in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in Cogent Communications Holdings, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
247
−19 vs. Q3 2025
Shares held
48.8M
−1.89M (−3.7%) vs. Q3 2025
Total value
$1.05B
−$892.2M (−45.9%) vs. Q3 2025
New holders
53
88 more added
Sold out
72
79 more reduced

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CCOI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 247 institutions
Q1 2021: 255 institutionsQ2 2021: 259 institutionsQ3 2021: 260 institutionsQ4 2021: 285 institutionsQ1 2022: 274 institutionsQ2 2022: 265 institutionsQ3 2022: 263 institutionsQ4 2022: 286 institutionsQ1 2023: 275 institutionsQ2 2023: 283 institutionsQ3 2023: 311 institutionsQ4 2023: 311 institutionsQ1 2024: 315 institutionsQ2 2024: 310 institutionsQ3 2024: 316 institutionsQ4 2024: 314 institutionsQ1 2025: 320 institutionsQ2 2025: 295 institutionsQ3 2025: 266 institutionsQ4 2025: 247 institutionsQ1 2026: 233 institutionsQ2 2026: 224 institutions
Value heldQ4 2025: $1.05B
Q1 2021: $2.82BQ2 2021: $3.11BQ3 2021: $2.91BQ4 2021: $3.02BQ1 2022: $2.74BQ2 2022: $2.53BQ3 2022: $2.16BQ4 2022: $2.35BQ1 2023: $2.67BQ2 2023: $2.87BQ3 2023: $2.61BQ4 2023: $3.34BQ1 2024: $2.93BQ2 2024: $2.59BQ3 2024: $3.52BQ4 2024: $3.58BQ1 2025: $2.84BQ2 2025: $2.36BQ3 2025: $1.95BQ4 2025: $1.05BQ1 2026: $919.1MQ2 2026: $656.2M
Institutions holding CCOI and their total value by quarter
QuarterHoldersValue
Q2 2026224$656.2M
Q1 2026233$919.1M
Q4 2025247$1.05B
Q3 2025266$1.95B
Q2 2025295$2.36B
Q1 2025320$2.84B
Q4 2024314$3.58B
Q3 2024316$3.52B
Q2 2024310$2.59B
Q1 2024315$2.93B
Q4 2023311$3.34B
Q3 2023311$2.61B
Q2 2023283$2.87B
Q1 2023275$2.67B
Q4 2022286$2.35B
Q3 2022263$2.16B
Q2 2022265$2.53B
Q1 2022274$2.74B
Q4 2021285$3.02B
Q3 2021260$2.91B
Q2 2021259$3.11B
Q1 2021255$2.82B

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Cogent Communications Holdings, Inc.; share changes are against Q3 2025.

Institutions holding CCOI in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.7,191,017$155.0M0.00%+298,921+4.3%Added
Vanguard Group Inc5,580,271$120.3M0.00%+217,450+4.1%Added
Turtle Creek Asset Management Inc.4,036,847$87.0M3.83%−567,086−12.3%Reduced
EdgePoint Investment Group Inc.2,283,378$49.2M0.40%+1,500+0.1%Added
State Street Corp2,070,132$44.6M0.00%+132,454+6.8%Added
Park West Asset Management LLC1,409,096$30.4M2.56%+1,409,096New
Harspring Capital Management, LLC1,402,500$30.2M11.22%+527,500+60.3%Added
Newtyn Management, LLC1,400,000$30.2M3.19%+700,000+100.0%Added
Morgan Stanley1,252,451$27.0M0.00%−548,082−30.4%Reduced
Magnolia Group, LLC1,246,337$26.9M4.43%−26,000−2.0%Reduced
Bank of America Corp1,201,461$25.9M0.00%+55,044+4.8%Added
Geode Capital Management, LLC1,179,231$25.4M0.00%+31,724+2.8%Added
First Trust Advisors LP1,177,398$25.4M0.02%+547,188+86.8%Added
FMR LLC815,939$17.6M0.00%+592,567+265.3%Added
Charles Schwab Investment Management Inc666,932$14.4M0.00%+91,798+16.0%Added
Broad Run Investment Management, LLC663,700$14.3M2.66%+19,670+3.1%Added
BlackBarn Capital Partners LP650,000$14.0M5.02%+275,000+73.3%Added
Colony Capital, Inc.636,169$13.7M1.06%−213,904−25.2%Reduced
Goldman Sachs Group Inc614,549$13.2M0.00%+200,286+48.3%Added
CenterBook Partners LP601,735$13.0M0.63%+431,974+254.5%Added
683 Capital Management, LLC600,000$12.9M1.08%−50,000−7.7%Reduced
MIG Capital, LLC569,220$12.3M2.08%+569,220New
Oakum Bay Capital LLC543,582$11.7M6.07%+543,582New
Royal Bank of Canada498,966$10.8M0.00%+326,607+189.5%Added
Northern Trust Corp498,973$10.8M0.00%−6,306−1.2%Reduced
Gilder Gagnon Howe & Co LLC494,108$10.7M0.11%+321,620+186.5%Added
Palliser Capital (UK) Ltd426,184$9.19M6.26%+207,434+94.8%Added
Frontier Capital Management Co LLC345,803$7.46M0.08%+83,783+32.0%Added
Man Group plc326,168$7.03M0.01%+314,457+2,685.1%Added
D. E. Shaw & Co., Inc.280,136$6.04M0.00%−112,993−28.7%Reduced
Bank of New York Mellon Corp276,933$5.97M0.00%−257,116−48.1%Reduced
Invesco Ltd.262,068$5.65M0.00%−1,140,544−81.3%Reduced
Reaves W H & Co Inc259,098$5.59M0.10%−164,000−38.8%Reduced
UBS Group AG248,555$5.36M0.00%−128,027−34.0%Reduced
Herald Investment Management Ltd242,600$5.23M0.68%00.0%Unchanged
Jane Street Group, LLC236,836$5.11M0.01%−198,042−45.5%Reduced
Principal Financial Group Inc227,044$4.90M0.00%−2,602−1.1%Reduced
Boothbay Fund Management, LLC220,028$4.74M0.12%−92,598−29.6%Reduced
Granahan Investment Management Inc217,025$4.68M0.20%+108,036+99.1%Added
Redmond Asset Management, LLC200,082$4.31M1.10%+62,828+45.8%Added
Legal & General Group Plc198,994$4.29M0.00%−763−0.4%Reduced
Advisors Asset Management, Inc.181,650$3.92M0.07%−12,775−6.6%Reduced
Nishkama Capital, LLC179,661$3.87M0.52%+73,956+70.0%Added
Blair William & Co177,655$3.83M0.01%−63,141−26.2%Reduced
14B Captial Management LP170,000$3.67M2.95%−279,633−62.2%Reduced
Nuveen, LLC169,700$3.66M0.00%+5,005+3.0%Added
JPMorgan Chase & Co168,603$3.64M0.00%−371,167−68.8%Reduced
Citadel Advisors LLC167,124$3.60M0.00%+85,219+104.0%Added
Edgestream Partners, L.P.165,979$3.58M0.10%+92,874+127.0%Added
Public Sector Pension Investment Board164,692$3.55M0.01%−20,710−11.2%Reduced
Citigroup Inc159,990$3.45M0.00%+130,148+436.1%Added
Bluefin Capital Management, LLC158,005$3.41M0.96%+158,005New
UBS Asset Management Americas Inc149,747$3.23M0.00%+1,910+1.3%Added
Rhumbline Advisers137,461$2.96M0.00%+196+0.1%Added
Susquehanna International Group, LLP133,453$2.88M0.00%+119,075+828.2%Added
Walleye Capital LLC101,408$2.19M0.01%+37,488+58.6%Added
Swiss National Bank97,000$2.09M0.00%+6,100+6.7%Added
Renaissance Technologies LLC89,031$1.92M0.00%−98,956−52.6%Reduced
Barclays PLC88,314$1.90M0.00%+22,741+34.7%Added
Simplex Trading, LLC84,895$1.83M0.05%+84,895New
Ameriprise Financial Inc84,205$1.82M0.00%−6,837−7.5%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys81,643$1.76M0.01%+4,998+6.5%Added
Wells Fargo & Company78,661$1.70M0.00%−19,275−19.7%Reduced
State of Wisconsin Investment Board75,154$1.62M0.00%−47,364−38.7%Reduced
MYDA Advisors LLC75,000$1.62M0.46%+66,000+733.3%Added
CBOE Vest Financial, LLC74,634$1.61M0.02%+50,276+206.4%Added
New York State Teachers Retirement System73,710$1.59M0.00%+22,700+44.5%Added
BNP Paribas Arbitrage, SA70,345$1.52M0.00%+38,326+119.7%Added
SG Americas Securities, LLC68,025$1.47M0.00%+60,428+795.4%Added
Deutsche Bank AG65,741$1.42M0.00%+5,187+8.6%Added
Skylands Capital, LLC61,575$1.33M0.18%−44,750−42.1%Reduced
Quantinno Capital Management LP61,207$1.32M0.00%+53,328+676.8%Added
Alliancebernstein L.P.57,464$1.24M0.00%+7,947+16.0%Added
Brown Advisory Inc52,952$1.14M0.00%−953,373−94.7%Reduced
Price T Rowe Associates Inc51,298$1.11M0.00%+11,362+28.5%Added
HRT Financial LP49,170$1.06M0.00%+49,170New
Victory Capital Management Inc46,412$1.00M0.00%+14,685+46.3%Added
California State Teachers Retirement System46,077$993.4K0.00%+197+0.4%Added
Bridgefront Capital, LLC45,198$974.5K0.24%+35,732+377.5%Added
Caption Management, LLC45,000$970.2K0.04%+22,500+100.0%Added
Prudential Financial Inc44,945$969.0K0.00%−2,864−6.0%Reduced
American Century Companies Inc43,813$944.6K0.00%−51,483−54.0%Reduced
Great West Life Assurance Co39,225$846.0K0.00%−16,655−29.8%Reduced
Millennium Management LLC38,783$836.2K0.00%−40,956−51.4%Reduced
Winton Group Ltd35,604$767.6K0.03%+35,604New
Dynamic Technology Lab Private Ltd35,226$759.0K0.17%+35,226New
Prairieview Wealth Partners, LLC34,742$749.0K0.68%−20,000−36.5%Reduced
Jump Financial, LLC34,468$743.1K0.01%+34,468New
J. Goldman & Co LP33,500$722.3K0.03%+33,500New
Thrivent Financial for Lutherans32,614$703.0K0.00%−1,673−4.9%Reduced
Aquatic Capital Management LLC31,255$673.9K0.02%+29,198+1,419.4%Added
AQR Capital Management LLC29,732$641.0K0.00%−2,391−7.4%Reduced
TrueMark Investments, LLC29,662$639.5K0.12%+29,662New
Zurcher Kantonalbank (Zurich Cantonalbank)28,868$622.4K0.00%+9,909+52.3%Added
Clear Harbor Asset Management, LLC27,716$597.6K0.04%+14,726+113.4%Added
MetLife Investment Management26,100$562.7K0.00%00.0%Unchanged
State of Alaska, Department of Revenue25,523$550.0K0.01%+254+1.0%Added
Landscape Capital Management, L.L.C.24,594$530.2K0.04%+15,981+185.5%Added
Creative Planning24,576$529.9K0.00%+1,806+7.9%Added
Walleye Trading LLC24,298$523.9K0.01%+24,298New