Info
Insider Ownership

Insider Trading & Ownership of John Chang

Location: Washington, DC
Summary: The estimated net worth of John Chang is at least $3.58M dollars as of 02 Dec 2025. John Chang is the VP & CHIEF LEGAL OFFICER of COGENT COMMUNICATIONS HOLDINGS, INC. and owns shares of COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) stock worth about $3.58M.
Signature: /s/ John Chang
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Ownership of John Chang

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	Vp & Chief Legal Officer	$3.58M			01 Dec 2025

Insider Transactions Reported by John Chang:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.