<SEC-DOCUMENT>0001123292-16-001876-index.html : 20160302
<SEC-HEADER>0001123292-16-001876.hdr.sgml : 20160302
<ACCEPTANCE-DATETIME>20160302175727
ACCESSION NUMBER:		0001123292-16-001876
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20160302
FILED AS OF DATE:		20160302
DATE AS OF CHANGE:		20160302

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Syndax Pharmaceuticals Inc
		CENTRAL INDEX KEY:			0001395937
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				320162505
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		460 TOTTEN POND ROAD
		STREET 2:		SUITE 650
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
		BUSINESS PHONE:		781-419-1400

	MAIL ADDRESS:	
		STREET 1:		460 TOTTEN POND ROAD
		STREET 2:		SUITE 650
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Metzger Michael A
		CENTRAL INDEX KEY:			0001507220

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37708
		FILM NUMBER:		161478729

	MAIL ADDRESS:	
		STREET 1:		C/O SYNDAX PHARMACEUTICALS, INC.
		STREET 2:		400 TOTTEN POND ROAD,
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: edgar.html

Document 1 - RAW XML: edgar.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>metzger.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
Document 2 - file: metzger.htm

</DOCUMENT>
</SEC-DOCUMENT>