<SEC-DOCUMENT>0001104659-23-048961-index.html : 20230424 <SEC-HEADER>0001104659-23-048961.hdr.sgml : 20230424 <ACCEPTANCE-DATETIME>20230424160421 ACCESSION NUMBER: 0001104659-23-048961 CONFORMED SUBMISSION TYPE: ARS PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20221231 FILED AS OF DATE: 20230424 DATE AS OF CHANGE: 20230424 EFFECTIVENESS DATE: 20230424 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Keros Therapeutics, Inc. CENTRAL INDEX KEY: 0001664710 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 811173868 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: ARS SEC ACT: 1934 Act SEC FILE NUMBER: 001-39264 FILM NUMBER: 23840022 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 </SEC-HEADER> <DOCUMENT> <TYPE>ARS <SEQUENCE>1 <FILENAME>tm232000d3_ars.pdf <DESCRIPTION>ARS <TEXT> Document 1 - file: tm232000d3_ars.pdf
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