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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 OSvdqh2JgDcBqOCKuMGIzb45JISWCd7Y474AtdUEjOUIct+qtvMhrrOR97WOpoKc
 iPEg6ez+PdNIqRKdXu8Olw==

<SEC-DOCUMENT>0001181431-10-007195.txt : 20100208
<SEC-HEADER>0001181431-10-007195.hdr.sgml : 20100208
<ACCEPTANCE-DATETIME>20100208113003
ACCESSION NUMBER:		0001181431-10-007195
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100205
FILED AS OF DATE:		20100208
DATE AS OF CHANGE:		20100208

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MCWILLIAMS BRUCE M
		CENTRAL INDEX KEY:			0001269893

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50460
		FILM NUMBER:		10579941

	MAIL ADDRESS:	
		STREET 1:		2032 BLARRITZ PL
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95138

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TESSERA TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0001261694
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				161620029
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3025 ORCHARD PARKWAY
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134
		BUSINESS PHONE:		4083216000

	MAIL ADDRESS:	
		STREET 1:		3025 ORCHARD PARKWAY
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd265205.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-02-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001261694</issuerCik>
        <issuerName>TESSERA TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>TSRA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001269893</rptOwnerCik>
            <rptOwnerName>MCWILLIAMS BRUCE M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TESSERA TECHNOLOGIES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>3025 ORCHARD PARKWAY</rptOwnerStreet2>
            <rptOwnerCity>SAN JOSE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95134</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-02-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>8750</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.7708</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>88120</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The sale is made pursuant to terms of 10b5-1 plan in effect at the time of sale of the shares.</footnote>
        <footnote id="F2">Represents the weighted average sale price for the entire number of shares sold.  The sale prices range from $16.64 to $17.07 per share.  Full information on the numbers of shares sold at each sale price is available upon request.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Bruce M. McWilliams</signatureName>
        <signatureDate>2010-02-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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