<SEC-DOCUMENT>0001193125-18-205824-index.html : 20180627
<SEC-HEADER>0001193125-18-205824.hdr.sgml : 20180627
<ACCEPTANCE-DATETIME>20180627164906
ACCESSION NUMBER:		0001193125-18-205824
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20180627
DATE AS OF CHANGE:		20180627

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ZAFGEN, INC.
		CENTRAL INDEX KEY:			0001374690
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				203857670
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-219834
		FILM NUMBER:		18922265

	BUSINESS ADDRESS:	
		STREET 1:		175 PORTLAND STREET
		STREET 2:		4TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02114
		BUSINESS PHONE:		617-622-4003

	MAIL ADDRESS:	
		STREET 1:		175 PORTLAND STREET
		STREET 2:		4TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02114

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ZAFGEN INC
		DATE OF NAME CHANGE:	20060906
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B5
<SEQUENCE>1
<FILENAME>d605183d424b5.htm
<DESCRIPTION>424B5
<TEXT>
Document 1 - file: d605183d424b5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g605183g39j10.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g605183g39j10.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g605183g54k53.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g605183g54k53.jpg

</DOCUMENT>
</SEC-DOCUMENT>