0001968582-24-000368.txt : 20240513 0001968582-24-000368.hdr.sgml : 20240513 20240513171451 ACCESSION NUMBER: 0001968582-24-000368 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240513 DATE AS OF CHANGE: 20240513 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Lexeo Therapeutics, Inc. CENTRAL INDEX KEY: 0001907108 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 854012572 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-41855 FILM NUMBER: 24940306 BUSINESS ADDRESS: STREET 1: 345 PARK AVENUE SOUTH STREET 2: FLOOR 6 CITY: NEW YORK STATE: NY ZIP: 10010 BUSINESS PHONE: (212) 547-9879 MAIL ADDRESS: STREET 1: 345 PARK AVENUE SOUTH STREET 2: FLOOR 6 CITY: NEW YORK STATE: NY ZIP: 10010 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Townsend Richard Nolan CENTRAL INDEX KEY: 0001995218 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O LEXEO THERAPEUTICS, INC. STREET 2: 345 PARK AVENUE SOUTH, 6TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10010 144 1 primary_doc.xml 144 0001995218 XXXXXXXX LIVE 0001907108 Lexeo Therapeutics, Inc. 001-41855 345 Park Avenue, Floor 6 New York NY 10010 212-547-9879 Richard Nolan Townsend Director Officer Common Stock J.P. Morgan Securities LLC

390 Madison Avenue 6th Floor New York NY 10017

70000 927500 32945341 05/13/2024 NASDAQ Common Stock 05/14/2021 Stock Option Exercise Issuer N 50000 05/14/2021 Cash Common Stock 05/13/2024 Stock Option Exercise Issuer N 20000 05/13/2024 Cash Y Some of the shares covered by this filing are stock options that will be exercised within 3 months from the date of this filing. 05/13/2024 12/19/2023 /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Richard Nolan Townsend