Cogent Communications (CCOI) CFO sells 4,850 common shares

Rhea-AI Filing Summary

Cogent Communications Holdings, Inc. Vice President and CFO Thaddeus Gerard Weed reported an open-market sale of 4,850 shares of common stock at $22.63 per share. After this transaction, he directly holds 202,750 shares of Cogent Communications common stock.

Insider Trade Summary

Net Seller: 4,850 shares ($109,756)

Net Sell 1 txn

Insider WEED THADDEUS GERARD

Role VICE PRESIDENT, CFO

Sold 4,850 shs ($110K)

Type	Security	Shares	Price	Value
Sale	common stock	4,850	$22.63	$110K

Holdings After Transaction: common stock — 202,750 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

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^*

WEED THADDEUS GERARD

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VICE PRESIDENT, CFO

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		4,850	D	$22.63	202,750	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/ Thaddeus G. Weed	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.

FAQ

What insider transaction did Cogent Communications (CCOI) report for its CFO?

Cogent Communications reported that CFO Thaddeus Gerard Weed completed an open-market sale of 4,850 shares of common stock at $22.63 per share. This transaction was disclosed in a Form 4 insider filing and involved non-derivative common stock.

How many Cogent Communications (CCOI) shares did the CFO sell and at what price?

The CFO sold 4,850 shares of Cogent Communications common stock in an open-market transaction at a reported price of $22.63 per share. The filing classifies this as a non-derivative transaction with the code “S,” indicating a sale.

How many Cogent Communications (CCOI) shares does the CFO hold after the sale?

After the reported sale, CFO Thaddeus Gerard Weed directly holds 202,750 shares of Cogent Communications common stock. The Form 4 indicates this as direct ownership, meaning the shares are held in his own name rather than through an intermediary entity.

Was the Cogent Communications (CCOI) CFO transaction a buy or a sell?

The transaction reported by Cogent Communications’ CFO was a sell. The Form 4 lists transaction code “S” and describes it as an open-market sale of 4,850 shares of common stock, confirming it was a disposition rather than an acquisition of shares.

What type of security did the Cogent Communications (CCOI) CFO trade?

The CFO traded Cogent Communications common stock in a non-derivative transaction. The filing specifies the security title as common stock and categorizes the activity as an open-market sale, distinguishing it from options, warrants, or other derivative securities.