LXEO Form 144: Restricted Stock Vesting Listed

LXEO filing a Form 144 notice for proposed resale of Common Stock following a restricted stock vesting event dated 05/15/2026.

Rhea-AI Filing Summary

LXEO filing a Form 144 notice for proposed resale of Common Stock following a restricted stock vesting event dated 05/15/2026. The filing lists a broker Fidelity Brokerage Services LLC and shows a recent reported disposition of 3,016 shares on 02/18/2026.

Insights

Securities Compliance Counsel

Form 144 lists a broker, a vesting event, and a recent past disposition.

The filing records a restricted stock vesting on 05/15/2026 and identifies Fidelity Brokerage Services LLC as the broker of record. It also shows a prior reported sale of 3,016 shares on 02/18/2026.

Cash‑flow treatment and aggregate offering amount are not detailed in the excerpt; subsequent filings or broker confirmations may specify sale timing and proceeds.

Key Figures

Restricted stock vesting date: 05/15/2026 Reported disposition (past 3 months): 3,016 shares Broker of record: Fidelity Brokerage Services LLC +2 more

5 metrics

Restricted stock vesting date 05/15/2026 Vesting event listed in Form 144

Reported disposition (past 3 months) 3,016 shares Disposition reported on 02/18/2026 for Jose M. Otero

Broker of record Fidelity Brokerage Services LLC Listed with address 900 Salem Street, Smithfield RI

Numeric entry 19,293.96 Appears in the same row as the 3,016 share disposition (unit not specified in excerpt)

Exchange NASDAQ Market listed in the filing excerpt

Key Terms

Form 144, Restricted Stock Vesting, Broker of Record

3 terms

Form 144 regulatory

"Filer Information | | | 144: Filer Information"

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.

Restricted Stock Vesting financial

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

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.

Broker of Record financial

"Common | Fidelity Brokerage Services LLC 900 Salem Street"

A broker of record is the single broker or firm officially authorized to manage an investor’s account, execute trades and receive related communications and fees on behalf of that account. It matters because whoever holds that designation controls who handles orders, gets paid for advice or commissions, and can access account information—similar to choosing a primary agent to handle your taxes or a primary doctor to coordinate care, which affects costs and how decisions are made.

FAQ

What does LXEO's Form 144 disclose?

The Form 144 discloses a restricted stock vesting dated 05/15/2026, names Fidelity Brokerage Services LLC as broker, and shows a prior reported disposition of 3,016 shares on 02/18/2026.

How many shares were reported sold in the past three months for LXEO?

The filing shows a reported disposition of 3,016 shares on 02/18/2026 attributed to an address for Jose M. Otero. The excerpt lists 19,293.96 on the same row without a clear unit in the provided text.

Does the Form 144 state when the vested shares may be sold?

The excerpt lists the vesting date as 05/15/2026 but does not state specific sale timing or method. The broker listed is Fidelity Brokerage Services LLC; timing and proceeds are not included in the provided text.

Who is the broker of record on the LXEO Form 144?

The filing names Fidelity Brokerage Services LLC at 900 Salem Street, Smithfield, RI as the broker of record and indicates the market as NASDAQ in the excerpt.

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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	0002024096
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	Otero Jose Manuel
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	1302	6606.35	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			1302	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
Jose M. Otero 345 Park Avenue South Floor 6 New York NY 10010	Common	02/18/2026	3016	19293.96

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/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jose M. Otero
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)