0001209191-23-058974.txt : 20231218 0001209191-23-058974.hdr.sgml : 20231218 20231218164752 ACCESSION NUMBER: 0001209191-23-058974 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231214 FILED AS OF DATE: 20231218 DATE AS OF CHANGE: 20231218 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Carroll Jill CENTRAL INDEX KEY: 0001598542 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41259 FILM NUMBER: 231494430 MAIL ADDRESS: STREET 1: C/O APPLIED GENETIC TECHNOLOGIES CORP. STREET 2: 11801 RESEARCH DRIVE, SUITE D CITY: ALACHUA STATE: FL ZIP: 32615 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Arcellx, Inc. CENTRAL INDEX KEY: 0001786205 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 472855917 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 25 WEST WATKINS MILL ROAD STREET 2: SUITE A CITY: GAITHERSBURG STATE: MD ZIP: 20878 BUSINESS PHONE: 240-723-6641 MAIL ADDRESS: STREET 1: 25 WEST WATKINS MILL ROAD STREET 2: SUITE A CITY: GAITHERSBURG STATE: MD ZIP: 20878 4 1 doc4.xml FORM 4 SUBMISSION X0508 4 2023-12-14 0 0001786205 Arcellx, Inc. ACLX 0001598542 Carroll Jill 985 OLD EAGLE SCHOOL ROAD SUITE 511 WAYNE PA 19087 1 0 0 0 0 Common Stock 2023-12-14 4 S 0 504263 49.13 D 1983411 I See Note 1 The securities are directly held by SR One Capital Fund I Aggregator, LP ("SR One Fund I Aggregator"). SR One Capital Partners I, LP ("SR One Partners I") serves as the general partner of SR One Fund I Aggregator and SR One Capital Management, LLC serves as the general partner of SR One Partners I. The Reporting Person is a partner of SR One Capital Management, LP, an entity affiliated with SR One Fund I Aggregator, and a limited partner of SR One Partners I. The Reporting Person disclaims beneficial ownership of these securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose. /s/ Sasha Keough, attorney-in-fact for Jill Carroll 2023-12-18