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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 IjJaKEnZHCENcWc06tHCd71YVkRpo3FDlU41C++S+LvkSWaxHNvynaXoXEYLGoUw
 /JJHRlzroP6aA7m9OTwpsg==

<SEC-DOCUMENT>0001391672-09-000072.txt : 20090507
<SEC-HEADER>0001391672-09-000072.hdr.sgml : 20090507
<ACCEPTANCE-DATETIME>20090507172313
ACCESSION NUMBER:		0001391672-09-000072
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090505
FILED AS OF DATE:		20090507
DATE AS OF CHANGE:		20090507

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Maupile Thierry
		CENTRAL INDEX KEY:			0001401610

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33511
		FILM NUMBER:		09806642

	MAIL ADDRESS:	
		STREET 1:		C/O STARENT NETWORKS CORP
		STREET 2:		30 INTERNATIONAL PLACE
		CITY:			TEWKSBURY
		STATE:			MA
		ZIP:			01876

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Starent Networks, Corp.
		CENTRAL INDEX KEY:			0001391672
		STANDARD INDUSTRIAL CLASSIFICATION:	RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT [3663]
		IRS NUMBER:				043527533
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		30 INTERNATIONAL PLACE
		CITY:			TEWKSBURY
		STATE:			MA
		ZIP:			01876
		BUSINESS PHONE:		978-851-1100

	MAIL ADDRESS:	
		STREET 1:		30 INTERNATIONAL PLACE
		CITY:			TEWKSBURY
		STATE:			MA
		ZIP:			01876
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-05-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001391672</issuerCik>
        <issuerName>Starent Networks, Corp.</issuerName>
        <issuerTradingSymbol>STAR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001401610</rptOwnerCik>
            <rptOwnerName>Maupile Thierry</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>30 INTERNATIONAL PLACE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TEWKSBURY</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01876</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>V.P. Global Mktg &amp; Bus. Devl.</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-05-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6334</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20.5</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>46338</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Thierry Maupile</signatureName>
        <signatureDate>2009-05-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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