Cogent Communications (CCOI) CFO sells 4,850 shares in open-market trade

Filing Impact

(Neutral)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Cogent Communications Holdings vice president and CFO Thaddeus Gerard Weed sold common stock in the company. He completed an open-market sale of 4,850 shares of common stock at an average price of $16.7906 per share. Following this transaction, he directly holds 197,900 shares of Cogent Communications Holdings common stock.

Insights

CFO executed a small open-market sale while retaining a substantial share position.

The filing shows Cogent Communications Holdings CFO Thaddeus Gerard Weed executed an open-market sale of 4,850 shares of common stock at $16.7906 per share. The transaction is coded as an S transaction, which indicates a sale in the open market or a private transaction.

After the sale, Weed directly holds 197,900 shares, indicating that the transaction represents only a portion of his overall equity stake. There are no derivative positions listed, and no footnotes describe special arrangements such as a Rule 10b5-1 trading plan, so this appears as a straightforward discretionary sale based on the provided data.

Insider Trade Summary

Net Seller: 4,850 shares ($81,434)

Net Sell 1 txn

Insider WEED THADDEUS GERARD

Role VICE PRESIDENT, CFO

Sold 4,850 shs ($81K)

Type	Security	Shares	Price	Value
Sale	common stock	4,850	$16.7906	$81K

Holdings After Transaction: common stock — 197,900 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 4,850 shares Sale price: $16.7906 per share Shares held after sale: 197,900 shares +1 more

4 metrics

Shares sold 4,850 shares Open-market sale of common stock

Sale price $16.7906 per share Average sale price for the transaction

Shares held after sale 197,900 shares Direct ownership following the Form 4 transaction

Net share change -4,850 shares Net selling direction in transactionSummary

Key Terms

open-market sale, common stock, Form 4

3 terms

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

common stock financial

"security_title": "common stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/16/2026 - 04:26 PM Accepted by SEC EDGAR 06/16/2026 - 04:25 PM

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

DISTRICT OF COLUMBIA

20037

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/16/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
common stock	06/16/2026		S		4,850	D	$16.7906	197,900	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

	/s/ Thaddeus G. Weed	06/16/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did CCOI report for CFO Thaddeus Weed?

Cogent Communications Holdings reported that CFO Thaddeus Gerard Weed executed an open-market sale of company common stock. The Form 4 shows he sold 4,850 shares in a single transaction and continues to hold a significant remaining position in Cogent stock.

How many CCOI shares did the CFO sell and at what price?

The CFO sold 4,850 shares of Cogent Communications Holdings common stock. The shares were sold in an open-market transaction at an average price of $16.7906 per share, as disclosed in the Form 4 insider trading report filed with regulators.

How many CCOI shares does the CFO hold after this Form 4 sale?

After the reported sale, CFO Thaddeus Gerard Weed directly holds 197,900 shares of Cogent Communications Holdings common stock. This post-transaction balance is disclosed in the Form 4 and reflects his remaining direct ownership stake in the company’s equity.

Was the CCOI CFO’s transaction a buy or a sell?

The transaction reported for Cogent Communications Holdings CFO was a sale. The Form 4 lists transaction code S, described as an open-market or private sale, and flags the transaction direction as a sell of 4,850 common shares.

Does the CCOI Form 4 show any derivative exercises by the CFO?

No derivative exercises are shown in this Form 4 for Cogent Communications Holdings. The derivativeSummary section is empty, and the transactionSummary reports zero derivative exercise transactions, indicating only a common stock sale was reported in this filing.