Mark Andrew Harris - 31 Dec 2025 Form 4 Insider Report for COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI)

Signature
/s/ Mark Andrew Harris
Issuer symbol
CCOI
Transactions as of
31 Dec 2025
Net transactions value
$0
Form type
4
Filing time
05 Jan 2026, 16:27:17 UTC
Previous filing
03 Sep 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Harris Mark Andrew VP & Chief Revenue Officer 2450 N ST NW, WASHINGTON /s/ Mark Andrew Harris 05 Jan 2026 0002083050

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CCOI common stock Award $0 +5,000 +97% $0.000000 10,168 31 Dec 2025 Direct F1
transaction CCOI common stock Award $0 +100,000 +983% $0.000000 110,168 31 Dec 2025 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This award of restricted stock shall vest in one third of the grant on January 1 of each of 2027, 2028 and 2029.
F2 The award shall vest effective January 1, 2029, based on Mr. Harris' continued employment to that date.