[144] Cogent Communications Holdings, Inc. SEC Filing

Rhea-AI Filing Summary

Form 144 notice for CCOI: The filer reports a proposed sale of 2,400 shares of common stock of the issuer to be sold approximately on 09/04/2025 on Nasdaq, with an aggregate market value of $88,080.00 based on the filing. The shares were acquired on 09/01/2025 through restricted stock award vesting and the consideration type is listed as equity compensation. The filing also discloses a prior sale during the past three months: 2,400 shares sold on 06/06/2025 by Henry Kilmer for gross proceeds of $115,080.00. The form includes the required representation that the seller is not aware of undisclosed material adverse information.

Insights

Securities Analyst

TL;DR: Routine insider sale of recently vested restricted stock; disclosed properly under Rule 144 with limited apparent market impact.

The notice documents a planned sale of 2,400 shares arising from restricted stock that vested on 09/01/2025 and an approximate Nasdaq sale date of 09/04/2025. Because the shares were acquired via equity compensation and the filer used Rule 144 disclosure, this appears to be a routine liquidity event rather than an operational development. The prior sale of 2,400 shares on 06/06/2025 is disclosed in the three-month history, which provides useful context for trading activity by the same or related parties.

Compliance/Risk Analyst

TL;DR: Filing meets Rule 144 disclosure elements; key compliance items are present but issuer and filer identifiers are incomplete in the visible tables.

The submission lists acquisition date, nature of acquisition, sale amount, expected sale date, and a three-month sales history, aligning with Form 144 requirements. The remarks include the customary representation about absence of undisclosed material adverse information. The public tables shown do not display explicit filer CIK or full issuer address text in the extracted content, so confirm full filing records to verify all identifying fields are present and correctly populated.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Charles Schwab Corp. 3000 Schwab Way Westlake TX 76262	2400	88080.00	49182709	09/04/2025	Nasdaq

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/01/2025	Restricted Stock Award Vesting	Issuer			2400	09/01/2025	Equity Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Henry Kilmer 2450 N Street N.W. Washington, DC 20037	Common	06/06/2025	2400	115080.00

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)