LXEO: Form 144 notice for 1,595 shares

LXEO filed a Form 144 notice relating to 1,595 shares of Common Stock tied to restricted stock vesting on 05/15/2026.

Rhea-AI Filing Summary

LXEO filed a Form 144 notice relating to 1,595 shares of Common Stock tied to restricted stock vesting on 05/15/2026. The filing also lists prior sales of 4,867 shares on 02/18/2026 attributed to Eric Adler with an associated value of 31,135.17.

Insights

Securities Compliance Analyst

Form 144 notice for restricted shares and prior dispositions.

The filing shows 1,595 shares described under "Restricted Stock Vesting" with the issuer listed as the source and a transaction date of 05/15/2026. This indicates a planned sale notice tied to recently vested compensation shares.

Past activity lists 4,867 shares sold on 02/18/2026 by Eric Adler with a value of 31,135.17. Cash‑flow treatment and broker routing are not detailed in the excerpt; subsequent filings would show settlement details if executed.

Key Figures

Shares listed for sale: 1,595 shares Prior shares sold: 4,867 shares Associated value: 31,135.17 +1 more

4 metrics

Shares listed for sale 1,595 shares Restricted Stock Vesting on 05/15/2026

Prior shares sold 4,867 shares Sale by Eric Adler on 02/18/2026

Associated value 31,135.17 Value listed with prior sale entry for 02/18/2026

Brokerage Fidelity Brokerage Services LLC Listed brokerage firm and address

Key Terms

Restricted Stock Vesting, Form 144, Compensation

3 terms

Restricted Stock Vesting financial

"Common | 05/15/2026 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Form 144 regulatory

"CONTENT METADATA: "form_type": "144""

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Compensation financial

"05/15/2026 | Compensation"

FAQ

What does LXEO's Form 144 disclose about the 1,595 shares?

The Form 144 lists 1,595 shares of Common Stock tied to Restricted Stock Vesting with a transaction date of 05/15/2026. It identifies the issuer as the source and classifies the reason as Compensation.

Who reported prior sales in the filing and how many shares were sold?

The filing shows prior dispositions by Eric Adler of 4,867 shares on 02/18/2026. The entry includes an associated value of 31,135.17 in the provided excerpt.

Does the filing state where the shares will be sold or who will receive proceeds?

The excerpt lists a brokerage entry for Fidelity Brokerage Services LLC and labels the source as Issuer for the vested shares. It does not specify the buyer or the recipient of sale proceeds in the provided text.

Is the 1,595-share item an issuer grant or a sale authorization?

The item is described as Restricted Stock Vesting with the issuer noted and classified under Compensation. The Form 144 format indicates a notice relating to a planned resale of those vested shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/18/2026 - 03:26 PM Learn about SEC filing dates

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	0001994972
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Lexeo Therapeutics, Inc.
SEC File Number	001-41855
Address of Issuer	345 PARK AVENUE SOUTH FLOOR 6 NEW YORK NEW YORK 10010
Phone	(212) 547-9879
Name of Person for Whose Account the Securities are To Be Sold	Adler Eric
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	Officer

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	1595	8073.73	78521634	05/18/2026	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	05/15/2026	Restricted Stock Vesting	Issuer			1595	05/15/2026	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
Eric Adler 345 Park Avenue South Floor 6 New York NY 10010	Common	02/18/2026	4867	31135.17

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	05/18/2026
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	/s/ Jared Cook, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Eric Adler
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)