<SEC-DOCUMENT>0001144204-17-028040-index.html : 20170516
<SEC-HEADER>0001144204-17-028040.hdr.sgml : 20170516
<ACCEPTANCE-DATETIME>20170516200657
ACCESSION NUMBER:		0001144204-17-028040
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170516
FILED AS OF DATE:		20170516
DATE AS OF CHANGE:		20170516

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			G1 Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001560241
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				263648180
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		79 T.W. ALEXANDER DRIVE
		STREET 2:		4501 RESEARCH COMMONS, SUITE 100
		CITY:			RESEARCH TRIANGLE PARK
		STATE:			NC
		ZIP:			27709
		BUSINESS PHONE:		919-213-9835

	MAIL ADDRESS:	
		STREET 1:		P. O. BOX # 110341
		CITY:			RESEARCH TRIANGLE PARK
		STATE:			NC
		ZIP:			27709

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	G-Zero Therapeutics, Inc.
		DATE OF NAME CHANGE:	20121012

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RA Capital Healthcare Fund LP
		CENTRAL INDEX KEY:			0001315082
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38096
		FILM NUMBER:		17850071

	BUSINESS ADDRESS:	
		STREET 1:		20 PARK PLAZA, SUITE 1200
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6177782500

	MAIL ADDRESS:	
		STREET 1:		20 PARK PLAZA, SUITE 1200
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER NAME:	
		FORMER CONFORMED NAME:	RA Capital Biotech Fund LP
		DATE OF NAME CHANGE:	20050121

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Kolchinsky Peter
		CENTRAL INDEX KEY:			0001384859

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38096
		FILM NUMBER:		17850072

	MAIL ADDRESS:	
		STREET 1:		20 PARK PLAZA, SUITE 1200
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RA CAPITAL MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001346824
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38096
		FILM NUMBER:		17850073

	BUSINESS ADDRESS:	
		STREET 1:		20 PARK PLAZA, SUITE 1200
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		617-778-2500

	MAIL ADDRESS:	
		STREET 1:		20 PARK PLAZA, SUITE 1200
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
</SEC-HEADER>
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Document 1 - RAW XML: v467232_3.xml

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