Chang John B.

VP & CHIEF LEGAL OFFICER · 3 insider transactions on file

All transactions

Date	Ticker	Company	Type	Shares	Price	Value	Filing
2025-12-31	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	Award	9,600	$0.00	$0.00	filing
2025-12-31	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	Award	100,000	$0.00	$0.00	filing
2025-12-01	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	Award	2,400	$0.00	$0.00	filing

Insider transactions from SEC Form 4 filings via EDGAR. Names appear as filed and aren't normalized across issuers.