Cogent director sells 2,206 shares at $23.03

COGENT COMMUNICATIONS HOLDINGS, INC. director Lewis H. Ferguson reported an open-market sale of 2,206 shares of common stock at a price of $23.03 per share.

Rhea-AI Filing Summary

COGENT COMMUNICATIONS HOLDINGS, INC. director Lewis H. Ferguson reported an open-market sale of 2,206 shares of common stock at a price of $23.03 per share. After this transaction, he directly held 20,449 shares of common stock.

Insider Trade Summary

Net Seller: 2,206 shares

Net Sell 1 txn

Insider FERGUSON Lewis H

Role Director

Sold 2,206 shs ($51K)

Type	Security	Shares	Price	Value
Sale	common stock	2,206	$23.03	$51K

Holdings After Transaction: common stock — 20,449 shares (Direct)

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did CCOI director Lewis H. Ferguson report?

Lewis H. Ferguson reported an open-market sale of common stock. He sold 2,206 shares of COGENT COMMUNICATIONS HOLDINGS, INC. at a price of $23.03 per share and continued to hold 20,449 shares directly after the transaction.

How many CCOI shares did Lewis H. Ferguson sell and at what price?

Lewis H. Ferguson sold 2,206 shares of COGENT COMMUNICATIONS common stock. The reported transaction price was $23.03 per share in an open-market sale, according to the Form 4 insider filing data provided for this transaction.

How many CCOI shares does Lewis H. Ferguson own after this Form 4 transaction?

After the reported sale, Lewis H. Ferguson directly owns 20,449 shares of COGENT COMMUNICATIONS common stock. The ownership is listed as direct, reflecting his holdings immediately following the 2,206-share open-market sale at $23.03 per share.

What was the nature of Lewis H. Ferguson’s CCOI transaction?

The transaction was an open-market sale of common stock. The Form 4 classifies it with code "S" and describes it as a sale in an open market or private transaction, with 2,206 shares sold at $23.03 per share.

Is Lewis H. Ferguson a director or officer of CCOI in this Form 4?

Lewis H. Ferguson is identified as a director of COGENT COMMUNICATIONS HOLDINGS, INC. in the Form 4. He is not reported as an officer or ten percent owner in the provided insider filing data for this transaction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/05/2026 - 04:57 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

FERGUSON Lewis H

(Last) (First) (Middle)

2450 N ST NW

4TH FLOOR

(Street)

WASHINGTON DC 20037

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
COGENT COMMUNICATIONS HOLDINGS, INC. [ CCOI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/05/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
common stock	03/05/2026		S		2,206	D	$23.03	20,449	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Lewis H. Ferguson	03/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.