Dave Schaeffer - Aug 8, 2025 Form 4 Insider Report for COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI)

Role: CHAIRMAN, CEO, AND PRESIDENT, Director
Signature: /s/ David Schaeffer
Stock symbol: CCOI
Transactions as of: Aug 8, 2025
Transactions value $: -$22,519,998
Form type: 4
Date filed: 8/11/2025, 05:11 PM
Previous filing: Aug 8, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT, Director	2450 N ST NW, 4TH FLOOR, WASHINGTON	/s/ David Schaeffer	2025-08-11	0001166976

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CCOI	common stock	Sale	-$22.5M	-819K	-54.02%	$27.50	697K	Aug 8, 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The sales reported on this Form 4 represent a non-volitional transfer of Common Stock by the Reporting Person to one of the Reporting Person's lenders effectuated by the lender pursuant to the Reporting Person's margin loan facility. The lender then sold the Common Stock in a private block sale at an approximately 9% discount to the then market price.