InsiderTrades

Form 4 for CCOI COGENT COMMUNICATIONS HOLDINGS, INC.

Accepted 2026-03-31 00:00:00 ET · period of report 2026-03-31 · accession 0001395643-26-000009 · 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
2026-03-31 2026-03-31 CCOI FERGUSON Lewis H Dir A - Grant $0.00 +3,445 23.9K +17% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common common stock 2026-03-31 A A 3,445 $0.00 23,894 D — — (F1) The shares of common stock reported reflects a quarterly payment to directors for Q1 2026 service. All shares are owned directly by Mr. Ferguson, a director of Cogent Communications Holdings, Inc.