<SEC-DOCUMENT>0001615219-15-000033-index.html : 20150727
<SEC-HEADER>0001615219-15-000033.hdr.sgml : 20150727
<ACCEPTANCE-DATETIME>20150727133525
ACCESSION NUMBER:		0001615219-15-000033
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20150727
FILED AS OF DATE:		20150727
DATE AS OF CHANGE:		20150727

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Flex Pharma, Inc.
		CENTRAL INDEX KEY:			0001615219
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				465087339
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		800 BOYLSTON STREET
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		617-874-1821

	MAIL ADDRESS:	
		STREET 1:		800 BOYLSTON STREET
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Westphal Christoph H
		CENTRAL INDEX KEY:			0001291961

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36812
		FILM NUMBER:		151006674

	MAIL ADDRESS:	
		STREET 1:		C/O ALNYLAM PHARMACEUTICALS, INC
		STREET 2:		300 THIRD STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_143801851528210.xml
<DESCRIPTION>FORM 4
<TEXT>
Document 1 - file: wf-form4_143801851528210.html

Document 1 - RAW XML: wf-form4_143801851528210.xml

</DOCUMENT>
</SEC-DOCUMENT>