COGENT COMMUNICATIONS HOLDINGS, INC.

CCOINASDAQ

$9.31+0.43 (+4.84% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

COGENT COMMUNICATIONS HOLDINGS, INC. price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 6, 2026. Price (-78.2%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	14.40%	$102M	0.00%	Not reported
Turtle Creek Asset Management Inc.	8.21%	$58.3M	2.28%	Reduce 3.34%
Park West Asset Management LLC	6.07%	$43.1M	2.94%	Add 60.52%
State Street Corp	5.43%	$38.6M	0.00%	Not reported
Vanguard Portfolio Management LLC	4.66%	$33.1M	0.00%	Not reported
EdgePoint Investment Group Inc.	4.46%	$31.7M	0.24%	Not reported
Vanguard Capital Management LLC	3.98%	$28.3M	0.00%	Not reported
Newtyn Management, LLC	3.23%	$23M	2.87%	Add 3.49%
Geode Capital Management, LLC	2.43%	$17.3M	0.00%	Not reported
Citadel Advisors LLC	2.29%	$16.3M	0.00%	Not reported
Magnolia Group, LLC	1.91%	$13.6M	2.86%	Reduce 24.07%
Goldman Sachs Group Inc	1.90%	$13.5M	0.00%	Not reported
Charles Schwab Investment Management Inc	1.57%	$11.2M	0.00%	Not reported
Gilder Gagnon Howe & Co LLC	1.53%	$10.9M	0.11%	Add 56.98%
Broad Run Investment Management, LLC	1.29%	$9.16M	1.41%	Reduce 0.46%
Morgan Stanley	1.23%	$8.71M	0.00%	Not reported
AQR Capital Management LLC	1.20%	$8.54M	0.00%	Not reported
Harspring Capital Management, LLC	1.17%	$8.32M	15.49%	Reduce 44.86%
Northern Trust Corp	1.01%	$7.17M	0.00%	Not reported
UBS Group AG	1.00%	$7.12M	0.00%	Not reported
CenterBook Partners LP	0.98%	$6.99M	0.34%	Add 1.86%
AYAL Capital Advisors Ltd	0.78%	$5.55M	1.50%	New Not reported
Frontier Capital Management Co LLC	0.75%	$5.31M	0.05%	Reduce 4.16%
Vanguard Fiduciary Trust Co	0.67%	$4.78M	0.00%	Not reported
BNP Paribas Financial Markets	0.64%	$4.55M	0.00%	Not reported
Granahan Investment Management, LLC	0.59%	$4.2M	0.15%	Not reported
PDT Partners, LLC	0.58%	$4.11M	0.22%	Add 4.52%
D. E. Shaw & Co., Inc.	0.56%	$3.95M	0.00%	Not reported
Susquehanna International Group, LLP	0.55%	$3.9M	0.00%	Not reported
Invesco Ltd.	0.53%	$3.73M	0.00%	Not reported
JPMorgan Chase & Co	0.52%	$3.55M	0.00%	Not reported
FourWorld Capital Management LLC	0.52%	$3.69M	3.35%	Not reported
Bank of New York Mellon Corp	0.52%	$3.69M	0.00%	Not reported
Bank of America Corp	0.50%	$3.54M	0.00%	Not reported
Jump Financial, LLC	0.49%	$3.49M	0.03%	Not reported
BlackBarn Capital Partners LP	0.49%	$3.47M	0.29%	Reduce 50.00%
HERALD INVESTMENT MANAGEMENT Ltd	0.47%	$3.36M	0.46%	Not reported
MYDA Advisors LLC	0.47%	$3.33M	0.50%	Not reported
Palliser Capital (UK) Ltd	0.46%	$3.28M	1.76%	Reduce 29.32%
Principal Financial Group Inc	0.46%	$3.24M	0.00%	Not reported
Squarepoint Ops LLC	0.44%	$3.14M	0.00%	Not reported
XTX Topco Ltd	0.43%	$3.06M	0.04%	Not reported
Nuveen, LLC	0.33%	$2.36M	0.00%	Not reported
FMR LLC	0.32%	$2.29M	0.00%	Not reported
Public Sector Pension Investment Board	0.32%	$2.28M	0.01%	Reduce 3.33%
Global Endowment Management, LP	0.31%	$2.2M	0.22%	Add 759.90%
Y-Intercept (Hong Kong) Ltd	0.30%	$2.14M	0.04%	Not reported
Caxton Associates LLP	0.28%	$2.01M	0.04%	Add 174.41%
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0.28%	$1.99M	0.00%	Not reported
Tudor Investment Corp Et Al	0.27%	$1.93M	0.00%	Not reported

50 of 210 holders

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