COGENT COMMUNICATIONS HOLDIN (CCOI) Stock Institutional Trading Activity


COGENT COMMUNICATIONS HOLDIN (CCOI) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Turtle Creek Asset Management, Renaissance Technologies LLC, Eagle Capital Management, and Dodge & Cox Stock Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Renaissance Technologies LLCSell-98,95689,031$1,919,508
Q4 2025Turtle Creek Asset ManagementSell-567,0864,036,847$87,034,421
Q3 2025Renaissance Technologies LLCSell-270,069187,987$7,209,301
Q3 2025Turtle Creek Asset ManagementBuy1,811,2224,603,933$176,560,831
Q2 2025Renaissance Technologies LLCSell-186,359458,056$22,082,880
Q2 2025Turtle Creek Asset ManagementBuy2,631,1342,792,711$134,636,597
Q1 2025Renaissance Technologies LLCSell-95,341644,415$39,509,084
Q1 2025Turtle Creek Asset ManagementBuy36,377161,577$9,906,286
Q4 2024Renaissance Technologies LLCSell-155,400739,756$57,012,995
Q4 2024Turtle Creek Asset ManagementBuy115,500125,200$9,649,164
Q3 2024Renaissance Technologies LLCSell-191,100895,156$67,960,244
Q2 2024Renaissance Technologies LLCSell-349,6001,086,256$61,308,289
Q1 2024Renaissance Technologies LLCSell-175,6001,435,856$93,804
Q4 2023Renaissance Technologies LLCSell-149,1001,611,456$122,567
Q3 2023Renaissance Technologies LLCSell-59,0001,760,556$108,978
Q2 2023Renaissance Technologies LLCBuy10,4001,819,556$122,438
Q1 2023Renaissance Technologies LLCSell-12,4821,809,156$115,279
Q4 2022Renaissance Technologies LLCSell-132,9181,821,638$103,979
Q3 2022Renaissance Technologies LLCSell-357,5001,954,556$101,950
Q2 2022Renaissance Technologies LLCBuy147,7002,312,056$140,481
Q1 2022Renaissance Technologies LLCSell-14,0002,164,356$143,605
Q4 2021Renaissance Technologies LLCSell-59,7002,178,356$159,412
Q3 2021Renaissance Technologies LLCSell-14,6002,238,056$158,544
Q2 2021Renaissance Technologies LLCSell-22,6002,252,656$173,207
Q1 2021Renaissance Technologies LLCSell-421,9002,275,256$156,447
Q4 2020Renaissance Technologies LLCSell-452,7102,697,156$161,479
Q3 2020Renaissance Technologies LLCSell-347,5003,149,866$189,149
Q2 2020Renaissance Technologies LLCSell-70,0003,497,366$270,556
Q2 2020Eagle Capital ManagementSell-4,80010,000$774
Q1 2020Renaissance Technologies LLCSell-21,0003,567,366$292,417

Frequently asked questions about CCOI activity

  • Which institutional owners are buying CCOI?

    Institutional owners buying CCOI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in CCOI activity?

    "Buy" means an investor increased their reported position in CCOI compared to the prior reporting period. This reflects growing exposure to COGENT COMMUNICATIONS HOLDIN (CCOI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in CCOI increasing?

    Institutional interest in CCOI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.