0001209191-21-003274.txt : 20210112 0001209191-21-003274.hdr.sgml : 20210112 20210112172549 ACCESSION NUMBER: 0001209191-21-003274 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210110 FILED AS OF DATE: 20210112 DATE AS OF CHANGE: 20210112 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Regnante Keith CENTRAL INDEX KEY: 0001682068 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-39264 FILM NUMBER: 21524301 MAIL ADDRESS: STREET 1: 733 CONCORD AVENUE CITY: CAMBRIDGE STATE: MA ZIP: 02138 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Keros Therapeutics, Inc. CENTRAL INDEX KEY: 0001664710 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 99 HAYDEN AVENUE, SUITE 120 (BLD E) STREET 2: LEDGEMONT TECHNOLOGY CENTER CITY: LEXINGTON STATE: MA ZIP: 02421 BUSINESS PHONE: 617-513-8774 MAIL ADDRESS: STREET 1: 99 HAYDEN AVENUE, SUITE 120 (BLD E) STREET 2: LEDGEMONT TECHNOLOGY CENTER CITY: LEXINGTON STATE: MA ZIP: 02421 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2021-01-10 0 0001664710 Keros Therapeutics, Inc. KROS 0001682068 Regnante Keith C/O KEROS THERAPEUTICS, INC. 99 HAYDEN AVENUE, SUITE 120, BUILDING E LEXINGTON MA 02421 0 1 0 0 Chief Financial Officer Employee Stock Option (right to buy) 70.93 2021-01-10 4 A 0 49150 0.00 A 2031-01-09 Common Stock 49150 49150 D One-fourth (1/4th) of the shares subject to the option shall vest on January 7, 2022, and one-twelfth (1/12th) of the remaining shares subject to the option shall vest in equal quarterly installments thereafter, subject to the Reporting Person continuing to provide service through each such date. /s/ Keith Regnante 2021-01-12