<SEC-DOCUMENT>0000921895-15-001225-index.html : 20150508
<SEC-HEADER>0000921895-15-001225.hdr.sgml : 20150508
<ACCEPTANCE-DATETIME>20150508163447
ACCESSION NUMBER:		0000921895-15-001225
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20150508
DATE AS OF CHANGE:		20150508

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Blueprint Medicines Corp
		CENTRAL INDEX KEY:			0001597264
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-88827
		FILM NUMBER:		15847307

	BUSINESS ADDRESS:	
		STREET 1:		215 FIRST STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		617-374-7580

	MAIL ADDRESS:	
		STREET 1:		215 FIRST STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIOTECHNOLOGY VALUE FUND L P
		CENTRAL INDEX KEY:			0000918923
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		IRS NUMBER:				363924731
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		1 SANSOME ST
		STREET 2:		30TH FL
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
		BUSINESS PHONE:		3125066500

	MAIL ADDRESS:	
		STREET 1:		1 SANSOME ST
		STREET 2:		30TH FL
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>sc13g07422blu_04302015.htm
<DESCRIPTION>THE SCHEDULE 13G
<TEXT>
Document 1 - file: sc13g07422blu_04302015.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex991to13g07422blu_04302015.htm
<DESCRIPTION>JOINT FILING AGREEMENT
<TEXT>
Document 2 - file: ex991to13g07422blu_04302015.htm

</DOCUMENT>
</SEC-DOCUMENT>