InsiderTrades

Form 4 for CCOI COGENT COMMUNICATIONS HOLDINGS, INC.

Accepted 2025-06-03 00:00:00 ET · period of report 2025-06-02 · accession 0001415889-25-015394 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2025-06-03 2025-06-02 CCOI Chang John B. VP, CLO G - Gift $0.00 -398 76.8K -0.5% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common common stock 2025-06-02 G D 398 $0.00 76,847 D — — (F1) The reporting person disposed of 398 shares to one independent adult family member