Mark Andrew Harris - 02 Sep 2025 Form 3 Insider Report for COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI)

Signature
/s/ Mark Andrew Harris
Issuer symbol
CCOI
Transactions as of
02 Sep 2025
Net transactions value
$0
Form type
3
Filing time
03 Sep 2025, 09:36:39 UTC
Next filing
05 Jan 2026

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 02 Sep 2025 0002083050

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding CCOI common stock 4,500 02 Sep 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Includes 500 shares of restricted stock which vests in two equal installments on May 1, 2026 and November 1, 2026 and also includes 3,500 shares of restricted stock which vests in seven equal installments on each of May 1 and November 1, through November 1, 2028.