0001209191-22-042573.txt : 20220719 0001209191-22-042573.hdr.sgml : 20220719 20220719164013 ACCESSION NUMBER: 0001209191-22-042573 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220715 FILED AS OF DATE: 20220719 DATE AS OF CHANGE: 20220719 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Lachey Jennifer CENTRAL INDEX KEY: 0001808322 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-39264 FILM NUMBER: 221091956 MAIL ADDRESS: STREET 1: C/O KEROS THERAPEUTICS, INC. STREET 2: 99 HAYDEN AVENUE, SUITE 120, BUILDING E CITY: LEXINGTON STATE: MA ZIP: 02421 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 2022-07-15 0 0001664710 Keros Therapeutics, Inc. KROS 0001808322 Lachey Jennifer C/O KEROS THERAPEUTICS, INC. 99 HAYDEN AVENUE, SUITE 120, BUILDING E LEXINGTON MA 02421 0 1 0 0 Chief Scientific Officer Common Stock 2022-07-15 4 M 0 46034 0.30 A 141134 D Common Stock 2022-07-15 4 S 0 46034 30.00 D 95100 D Employee Stock Option (right to buy) 0.30 2022-07-15 4 M 0 46034 0.00 D 2028-03-25 Common Stock 46034 8755 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan. Immediately exercisable. /s/ Keith Regnante, Attorney-in-Fact 2022-07-19