0001866219-26-000007.txt : 20260615 0001866219-26-000007.hdr.sgml : 20260615 20260615161525 ACCESSION NUMBER: 0001866219-26-000007 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20260611 FILED AS OF DATE: 20260615 DATE AS OF CHANGE: 20260615 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Newton Charles W. CENTRAL INDEX KEY: 0001866219 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-39264 FILM NUMBER: 261091001 MAIL ADDRESS: STREET 1: 46 FREDRICK AVENUE CITY: ATHERTON STATE: CA ZIP: 94027 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Keros Therapeutics, Inc. CENTRAL INDEX KEY: 0001664710 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences EIN: 811173868 FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1050 WALTHAM STREET, SUITE 302 CITY: LEXINGTON STATE: MA ZIP: 02421 BUSINESS PHONE: 617-314-6297 MAIL ADDRESS: STREET 1: 1050 WALTHAM STREET, SUITE 302 CITY: LEXINGTON STATE: MA ZIP: 02421 4 1 form4-06152026_080616.xml