InsiderTrades

Form 4 for CCOI COGENT COMMUNICATIONS HOLDINGS, INC.

Accepted 2025-05-29 00:00:00 ET · period of report 2025-05-28 · accession 0001415889-25-014867 · 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
2025-05-29 2025-05-28 CCOI SCHAEFFER DAVE COB, CEO, AND Pres, Dir S - Sale $47.41 -20.0K 4.11M -0.5% -$948.2K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common common stock 2025-05-28 S D 20,000 $47.41 4,111,721 D — —