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Company Profile · Institutional 13F Ownership

Cogent Communications Holdings Inc

Institutional 13F ownership snapshot — who holds this stock, how much, and how positions have evolved over time.

Latest Quarter

Q2 2026

Ticker

CCOI

Total Inst. Value

$770.7M

Aggregate 13F reported value

Inst. Holders

187

Managers holding this quarter

Largest Holder

Turtle Creek Asset Management Inc.

By reported value

Next 3 Holders

Park West Asset Management LLC VANGUARD PORTFOLIO MANAGEMENT LLC EdgePoint Investment Group Inc.

2nd-4th largest by value

Holdings Value Over Time

Quarterly trend based on reported 13F portfolio value.

Q2 2026
Largest Shareholders

Top institutional holders of this security by reported value, from the latest 13F cycle.

Turtle Creek Asset Management Inc. $58.3M
Park West Asset Management LLC $43.1M
VANGUARD PORTFOLIO MANAGEMENT LLC $33.1M
EdgePoint Investment Group Inc. $31.7M
Institutional Stakeholders

Full list of managers reporting a position in this security for Q2 2026.

Manager Name Value Held Shares Held Class Type Discretion