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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 UP1jRQBSqflxCEhbg2QYAw==

<SEC-DOCUMENT>0001462354-09-000009.txt : 20090508
<SEC-HEADER>0001462354-09-000009.hdr.sgml : 20090508
<ACCEPTANCE-DATETIME>20090508160818
ACCESSION NUMBER:		0001462354-09-000009
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090507
FILED AS OF DATE:		20090508
DATE AS OF CHANGE:		20090508

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PATTON JOHN STUART
		CENTRAL INDEX KEY:			0001247653

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32335
		FILM NUMBER:		09810826

	MAIL ADDRESS:	
		STREET 1:		150 INDUSTRIAL ROAD
		STREET 2:		C/O NEKTAR THERAPEUTICS
		CITY:			SAN CARLOS
		STATE:			CA
		ZIP:			94070

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HALOZYME THERAPEUTICS INC
		CENTRAL INDEX KEY:			0001159036
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				880488686
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		11388 SORRENTO VALLEY ROAD
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121-1345
		BUSINESS PHONE:		(858) 794-8889

	MAIL ADDRESS:	
		STREET 1:		11388 SORRENTO VALLEY ROAD
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121-1345

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GLOBAL YACHT SERVICES INC
		DATE OF NAME CHANGE:	20010912
</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>2009-05-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001159036</issuerCik>
        <issuerName>HALOZYME THERAPEUTICS INC</issuerName>
        <issuerTradingSymbol>HALO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001247653</rptOwnerCik>
            <rptOwnerName>PATTON JOHN STUART</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O HALOZYME THERAPEUTICS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>11388 SORRENTO VALLEY ROAD</rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92121</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>2009-05-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>20000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.001</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>50000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares acquired as compensation for services pursuant to the  2008 Outside Directors' Stock Plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: James E. Cartoni, Attorney-in-fact  For: John S. Patton</signatureName>
        <signatureDate>2009-05-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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