<SEC-DOCUMENT>0001144204-19-008280-index.html : 20190214
<SEC-HEADER>0001144204-19-008280.hdr.sgml : 20190214
<ACCEPTANCE-DATETIME>20190214171310
ACCESSION NUMBER:		0001144204-19-008280
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20190214
DATE AS OF CHANGE:		20190214
GROUP MEMBERS:		PETER KOLCHINSKY

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Krystal Biotech, Inc.
		CENTRAL INDEX KEY:			0001711279
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				810930882
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-90133
		FILM NUMBER:		19608185

	BUSINESS ADDRESS:	
		STREET 1:		2100 WHARTON STREET
		STREET 2:		SUITE 701
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15203
		BUSINESS PHONE:		(412) 586-5830

	MAIL ADDRESS:	
		STREET 1:		2100 WHARTON STREET
		STREET 2:		SUITE 701
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15203

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RA CAPITAL MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001346824
		IRS NUMBER:				830406777
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	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>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>tv513573_sc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: tv513573_sc13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>