<SEC-DOCUMENT>0000904454-16-001087-index.html : 20160302
<SEC-HEADER>0000904454-16-001087.hdr.sgml : 20160302
<ACCEPTANCE-DATETIME>20160302184209
ACCESSION NUMBER:		0000904454-16-001087
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:			Halak Brian K
		CENTRAL INDEX KEY:			0001354718

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37708
		FILM NUMBER:		161478970

	MAIL ADDRESS:	
		STREET 1:		C/O DOMAIN ASSOCIATES
		STREET 2:		ONE PALMER SQUARE
		CITY:			PRINCETON
		STATE:			NJ
		ZIP:			08542

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			VITULLO NICOLE
		CENTRAL INDEX KEY:			0001196863

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37708
		FILM NUMBER:		161478971

	MAIL ADDRESS:	
		STREET 1:		3030 SCIENCE PARK ROAD
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TREU JESSE I
		CENTRAL INDEX KEY:			0001013425
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37708
		FILM NUMBER:		161478972

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DOVEY BRIAN H
		CENTRAL INDEX KEY:			0001207786

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37708
		FILM NUMBER:		161478973

	MAIL ADDRESS:	
		STREET 1:		ONE PALMER SQUARE
		CITY:			PRINCETON
		STATE:			NJ
		ZIP:			08542

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BLAIR JAMES C
		CENTRAL INDEX KEY:			0001024000
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37708
		FILM NUMBER:		161478974

	MAIL ADDRESS:	
		STREET 1:		5880 PACIFIC CENTER BLVD
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121-4204

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Domain Partners VIII, L.P.
		CENTRAL INDEX KEY:			0001465144
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37708
		FILM NUMBER:		161478975

	BUSINESS ADDRESS:	
		STREET 1:		C/O DOMAIN ASSOCIATES, L.L.C.
		STREET 2:		ONE PALMER SQUARE, SUITE 515
		CITY:			PRINCETON
		STATE:			NJ
		ZIP:			08542
		BUSINESS PHONE:		609-683-5656

	MAIL ADDRESS:	
		STREET 1:		C/O DOMAIN ASSOCIATES, L.L.C.
		STREET 2:		ONE PALMER SQUARE, SUITE 515
		CITY:			PRINCETON
		STATE:			NJ
		ZIP:			08542
</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>domainpartnersvii_12216-poa.htm
<DESCRIPTION>POWER OF ATTORNEY FOR DOMAIN PARTNERS VIII, L.P.
<TEXT>
Document 2 - file: domainpartnersvii_12216-poa.htm

</DOCUMENT>
</SEC-DOCUMENT>