LXEO insider sale filing: 542 shares post-vesting to be sold on NASDAQ

Rhea-AI Filing Summary

Form 144 filed for Lexeo Therapeutics, Inc. (LXEO) reports a proposed sale of 542 common shares, with an aggregate market value of $2,530.16, to be sold on 08/18/2025 on NASDAQ through Fidelity Brokerage Services LLC.

The shares were acquired on 08/15/2025 through restricted stock vesting from the issuer and payment/settlement is recorded as 08/15/2025. The filing shows 54,001,214 shares outstanding for the class and indicates no other sales in the past three months.

Insights

Securities Analyst

TL;DR: Routine Form 144 reporting a small post-vesting sale, immaterial to company capitalization.

The filing documents a proposed sale of 542 shares valued at $2,530.16, executed through a broker on NASDAQ after restricted stock vested three days earlier. Given the class outstanding count of 54,001,214 shares, the size of the sale is negligible relative to total capitalization and is a standard disclosure required under Rule 144. There are no reported sales in the prior three months, and no additional material details about insider intent or plan are provided.

Corporate Governance Expert

TL;DR: Compliance-focused disclosure of insider sale following restricted stock vesting; no governance red flags apparent.

The notice affirms the signer represents no undisclosed material adverse information and references potential Rule 10b5-1 plan considerations, but does not indicate a trading plan or unusual timing. The transaction appears to be standard post-vesting liquidity by an insider or related person, with routine broker engagement and no past three-month sales reported.

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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	542	2530.16	54001214	08/18/2025	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	08/15/2025	Restricted Stock Vesting	Issuer			542	08/15/2025	NASDAQ

* 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

Nothing to Report

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)

FAQ

What does the LXEO Form 144 disclose about the proposed sale?

The filing discloses a proposed sale of 542 common shares valued at $2,530.16, to be sold on 08/18/2025 on NASDAQ via Fidelity Brokerage Services LLC.

How and when were the shares acquired according to the filing?

The shares were acquired on 08/15/2025 through restricted stock vesting from the issuer, with payment/settlement dated 08/15/2025.

How many LXEO shares are outstanding as shown in the Form 144?

The filing reports 54,001,214 shares outstanding for the class of common stock.

Does the Form 144 report any other sales in the past three months for the seller?

No. The filing states "Nothing to Report" for securities sold during the past three months by the person for whose account the shares are to be sold.

Which broker is handling the proposed sale in the filing?

The broker named is Fidelity Brokerage Services LLC located at 900 Salem Street, Smithfield RI 02917.