John B. Chang insider trades

Open-market stock purchases and sales by John B. Chang, VP & CHIEF LEGAL OFFICER at Cogent Communications Holdings, Inc, from SEC Form 4 filings since Jan 2, 2020.

Recent trades

DateStockTradeValue
Dec 31, 2025CCOI Cogent Communications Holdings, IncBought (not open market)—
Dec 31, 2025CCOI Cogent Communications Holdings, IncBought (not open market)—
Dec 1, 2025CCOI Cogent Communications Holdings, IncBought (not open market)—

Companies traded

  • CCOI Cogent Communications Holdings, Inc: 28 sales, last Dec 31, 2025

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