<SEC-DOCUMENT>0001664710-17-000002-index.html : 20171113
<SEC-HEADER>0001664710-17-000002.hdr.sgml : 20171110
<ACCEPTANCE-DATETIME>20171113135449
ACCESSION NUMBER:		0001664710-17-000002
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		<ITEMS>06b
FILED AS OF DATE:		20171113
DATE AS OF CHANGE:		20171113
EFFECTIVENESS DATE:		20171113

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Keros Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001664710
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-262318
		FILM NUMBER:		171195097

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>