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Which hedge funds own CCOI? COGENT COMMUNICATIONS HLDGS, Q2 2026 13F holders

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43 tracked hedge funds disclosed a position in CCOI (COGENT COMMUNICATIONS HLDGS) in their Q2 2026 13F filings, worth $237.0m in total. The largest holder by portfolio weight is Harspring Capital Management, LLC at 15.5% of its book. 14 opened a new position this quarter: AYAL Capital Advisors Ltd, MYDA Advisors LLC, Rangeley Capital, LLC, Y-Intercept (Hong Kong) Ltd. 8 exited: 683 Capital Management, LLC, Caption Management, LLC, Gsa Capital Partners LLP.

43
Holders
Tracked managers whose filing for the quarter reports a long equity position in the security.
14
New this quarter
Holders whose previous filing (at most two quarters earlier) did not report the security.
8
Exited this quarter
Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
$14.5m
Inflow, new holders
Combined value of the positions the new holders reported for the quarter.
$12.2m
Outflow, exits
Combined value the exiting managers reported for the security in their previous filing.
$237m
Combined value
Sum of the holders' reported positions in the security.
3.5%
Share of managers holding
Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.

Holders, Q2 2026

43 rows
Harspring Capital Management, LLC Hedge fund15.5%$8.3m599,418−45%reduced
FourWorld Capital Management LLC Hedge fund4.3%$3.7m265,5000.0%held
Park West Asset Management LLC Hedge fund2.9%$43.1m3.11m+61%added
Newtyn Management, LLC Hedge fund2.9%$23.0m1.66m+3.5%added
Magnolia Group, LLC Hedge fund2.9%$13.6m979,686−24%reduced
AYAL Capital Advisors Ltd Hedge fund2.8%$5.6m400,000–new
Turtle Creek Asset Management Inc. Hedge fund2.3%$58.3m4.20m−3.3%reduced
Palliser Capital (UK) Ltd Hedge fund1.8%$3.3m236,393−29%reduced
Broad Run Investment Management Long-only investor1.4%$9.2m660,130−0.5%held
BlackBarn Capital Partners LP Hedge fund0.9%$3.5m250,000−50%reduced
MYDA Advisors LLC Hedge fund0.8%$3.3m240,000–new
CenterBook Partners LP Hedge fund0.3%$7.0m503,457+1.9%added
Global Endowment Management, LP Hedge fund0.2%$2.2m158,582+760%added
PDT Partners, LLC Hedge fund0.2%$4.1m296,439+4.5%added
Rangeley Capital, LLC Hedge fund0.2%$194k14,000–new
Skylands Capital, LLC Hedge fund0.2%$1.4m98,425+43%added
Twinbeech Capital LP Hedge fund0.04%$247k17,769+8.3%added
Y-Intercept (Hong Kong) Ltd Hedge fund0.04%$2.1m154,019–new
Numerai GP LLC Hedge fund0.04%$505k36,370–new
Caxton Associates LLP Hedge fund0.04%$2.0m145,106+174%added
Boothbay Fund Management, LLC Hedge fund0.03%$1.6m118,403−69%reduced
Mirabella Financial Services LLP Hedge fund0.03%$308k22,156–new
Occudo Quantitative Strategies LP Hedge fund0.02%$467k33,639–new
Landscape Capital Management, L.L.C. Hedge fund0.02%$281k20,259−44%reduced
BTG Pactual Asset Management US LLC Hedge fund0.01%$142k10,200–new
Quantbot Technologies LP Hedge fund0.01%$254k18,267–new
Citadel Advisors LLC Hedge fund0.01%$16.3m1.17m+175%added
Entropy Technologies, LP Hedge fund0.01%$207k14,932–new
Tudor Investment Corp ET AL Hedge fund0.01%$1.9m139,269−0.3%held
Engineers Gate Manager LP Hedge fund0.01%$582k41,960+43%added
Schonfeld Strategic Advisors LLC Hedge fund0.01%$1.2m86,639–new
Squarepoint Ops LLC Hedge fund0.01%$3.1m226,035+341%added
Fulcrum Asset Management LLP Hedge fund0.01%$61.0k4,642–new
Pin Oak Investment Advisors Inc Hedge fund0.01%$8.0k5900.0%held
ExodusPoint Capital Management, LP Hedge fund0.0%$486k34,982−35%reduced
Brevan Howard Capital Management LP Hedge fund0.0%$273k19,657−19%reduced
AQR Capital Management LLC Hedge fund0.0%$8.5m615,561+193%added
D. E. Shaw & Co., Inc. Hedge fund0.0%$4.0m284,694−61%reduced
Millennium Management LLC Hedge fund0.0%$1.7m119,138−48%reduced
Renaissance Technologies LLC Hedge fund0.0%$683k49,231−27%reduced
Walleye Capital LLC Hedge fund0.0%$170k12,270−95%reduced
Two Sigma Investments, LP Hedge fund0.0%$163k11,747–new
Quarry LP Hedge fund0.0%$52738–new