[Form 4] Cogent Communications Holdings, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Insider sale disclosed: Thaddeus Gerard Weed, Vice President and Chief Financial Officer of Cogent Communications Holdings, Inc. (CCOI), reported a sale of 4,900 shares of the issuer's common stock on 09/02/2025 at a price of $36.98 per share. Following the reported transaction, Mr. Weed is shown as beneficially owning 93,100 shares directly. The filing is a standard Form 4 under Section 16 that documents changes in beneficial ownership by a company officer and contains the reporting signature confirming the transaction.

Positive

• Timely disclosure: The reporting person filed a Form 4 documenting the transaction and included a manual signature, demonstrating compliance with Section 16 reporting requirements.
• Clear transaction details: The filing specifies date, number of shares sold, sale price, and post-transaction holdings, allowing investors to see exact insider activity.

Negative

• Insider sale: The Vice President and CFO sold 4,900 shares, which may be interpreted by some investors as insider liquidity rather than conviction in the stock.

Insights

Financial Analyst

TL;DR: Officer sale of 4,900 shares reported; transaction appears routine and provides transparency on insider activity.

The Form 4 shows a direct sale by the company's Vice President and CFO on 09/02/2025 for $36.98 per share, leaving reported direct ownership of 93,100 shares. This is a disclosure filing required by Section 16 and does not itself provide company operational or financial results. Investors can view this as routine insider liquidity but the filing contains no indication of unusual timing, related-party transactions, or derivative activity.

Corporate Governance Expert

TL;DR: Filing meets Section 16 disclosure requirements; sale is recorded and signed by the reporting person.

The Form 4 is properly completed for a single reporting person and includes signature and transaction details: security class, transaction date, code indicating a sale, number of shares sold, price, and post-transaction holdings. There are no amendments, multiple reporting persons, or derivative transactions disclosed. From a governance and compliance perspective, the filing documents timely disclosure of an officer's sale consistent with reporting obligations.

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)
09/02/2025

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	09/02/2025		S		4,900	D	$36.98	93,100	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 Weed	09/02/2025
	** 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 transaction did the CCOI insider report on this Form 4?

The filing reports a sale of 4,900 shares of Cogent Communications common stock on 09/02/2025.

At what price were the CCOI shares sold by the reporting person?

The reported sale price was $36.98 per share.

Who filed this Form 4 for CCOI and what is their role?

The reporting person is Thaddeus Gerard Weed, identified as Vice President and Chief Financial Officer.

How many CCOI shares does the reporting person own after the reported transaction?

Following the reported sale, the Form 4 shows the reporting person beneficially owns 93,100 shares directly.

Does the Form 4 disclose any derivative transactions or plans under Rule 10b5-1?

No derivative securities or 10b5-1 plan indications are disclosed in this Form 4; only a non-derivative sale is reported.