<SEC-DOCUMENT>0001104659-13-010365.txt : 20130214
<SEC-HEADER>0001104659-13-010365.hdr.sgml : 20130214
<ACCEPTANCE-DATETIME>20130214060130
ACCESSION NUMBER:		0001104659-13-010365
CONFORMED SUBMISSION TYPE:	5
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20121231
FILED AS OF DATE:		20130214
DATE AS OF CHANGE:		20130214

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SYNTA PHARMACEUTICALS CORP
		CENTRAL INDEX KEY:			0001157601
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000

	BUSINESS ADDRESS:	
		STREET 1:		45 HARTWELL AVE
		CITY:			LEXINGTON
		STATE:			MA
		ZIP:			02421
		BUSINESS PHONE:		781-274-8200

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Chen Lan Bo
		CENTRAL INDEX KEY:			0001325711

	FILING VALUES:
		FORM TYPE:		5
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33277
		FILM NUMBER:		13606006

	MAIL ADDRESS:	
		STREET 1:		C/O SYNTA PHARMACEUTICALS CORP.
		STREET 2:		45 HARTWELL AVENUE
		CITY:			LEXINGTON
		STATE:			MA
		ZIP:			02421
</SEC-HEADER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>a5.xml
<DESCRIPTION>5
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2012-12-31</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0001157601</issuerCik>
        <issuerName>SYNTA PHARMACEUTICALS CORP</issuerName>
        <issuerTradingSymbol>SNTA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001325711</rptOwnerCik>
            <rptOwnerName>Chen Lan Bo</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>184 EAST EMERSON ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LEXINGTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02420</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>This Statement on Form 5 is filed solely to report that the Reporting Person is no longer subject to Section 16 inasmuch as he resigned as a Director of the Issuer effective March 1, 2012.</remarks>

    <ownerSignature>
        <signatureName>/s/ Lan Bo Chen</signatureName>
        <signatureDate>2013-02-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
