-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 JWseA3jRZrZiHcja3imYvmwL9+jvz4ovf/yb7VEaucNia+X+bmIF8PN0fQbLNMUi
 6wWYNuZmR59G7jIPAQ+Ivw==

<SEC-DOCUMENT>0000903423-03-000469.txt : 20030527
<SEC-HEADER>0000903423-03-000469.hdr.sgml : 20030526
<ACCEPTANCE-DATETIME>20030527161844
ACCESSION NUMBER:		0000903423-03-000469
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030522
FILED AS OF DATE:		20030527

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PETCO ANIMAL SUPPLIES INC
		CENTRAL INDEX KEY:			0000888455
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-RETAIL STORES, NEC [5990]
		IRS NUMBER:				330479906
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0128

	BUSINESS ADDRESS:	
		STREET 1:		9125 REHCO RD
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		6194537845

	MAIL ADDRESS:	
		STREET 1:		9125 REHCO RD
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TPG ADVISORS III INC
		CENTRAL INDEX KEY:			0001107479
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23574
		FILM NUMBER:		03720047

	BUSINESS ADDRESS:	
		STREET 1:		301 COMMERCE STREET
		STREET 2:		SUITE 3300
		CITY:			FT WORTH
		STATE:			TX
		ZIP:			76102
		BUSINESS PHONE:		8178714000

	MAIL ADDRESS:	
		STREET 1:		301 COMMERCE STREET
		STREET 2:		SUITE 3300
		CITY:			FT WORTH
		STATE:			TX
		ZIP:			76102
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar123.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0101</schemaVersion>

    <documentType>4</documentType>
    <periodOfReport>2003-05-22</periodOfReport>
    <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000888455</issuerCik>
        <issuerName>PETCO ANIMAL SUPPLIES INC</issuerName>
        <issuerTradingSymbol>petc</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
    <reportingOwnerId>
            <rptOwnerCik>0001107479</rptOwnerCik>
            <rptOwnerName>TPG ADVISORS III INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
        <isDirector>0</isDirector>
        <isOfficer>0</isOfficer>
        <isTenPercentOwner>1</isTenPercentOwner>
        <isOther>0</isOther>
    </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeSecurity>
        <securityTitle>
            <value>Common Stock, par value $0.001 per share</value>
        </securityTitle>
        <transactionDate>
            <value>2003-05-22</value>
        </transactionDate>
    <transactionCoding>
        <transactionFormType>4</transactionFormType>
        <transactionCode>S</transactionCode>
        <equitySwapInvolved>0</equitySwapInvolved>
    </transactionCoding>
        <transactionAmounts>
            <transactionShares>
                <value>4135000</value>
            </transactionShares>
            <transactionValue>
                <value>18.91</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>D</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>10895955</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>I</value>
            </directOrIndirectOwnership>
            <natureOfOwnership>
                <value>See (1) (2) in "Explanation of Responses" below</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </natureOfOwnership>
        </ownershipNature>
    </nonDerivativeSecurity>

    <footnotes>
        <footnote id="F1">Shares are beneficially owned by funds managed by TPG Advisors III, Inc.
(the &quot;Reporting Person&quot;). Pursuant to Rule 16a-1(a)(2)(ii)(B) of the Securities
Exchange Act of 1934, as amended (the &quot;Act&quot;), the Reporting Person is deemed to
be the beneficial owner of the shares of the Issuer beneficially owned by such
funds only to the extent of the greater of the Reporting Person's direct or
indirect interest in the profits or capital account of such funds. Pursuant to
Rule 16a-1(a)(4) under the Act, this filing shall not be deemed an admission
that the Reporting Person is, for purposes of Section 16 of the Act or
otherwise, the beneficial owner of any securities owned by such entities in
excess of such amount.</footnote>
        <footnote id="F2">David Bonderman, James G. Coulter and William S. Price, III (each a
&quot;Shareholder&quot;) are officers, directors and sole shareholders of the Reporting
Person, and therefore may be deemed to beneficially own the shares owned by the
Reporting Person. Mr. Price is also a director of the Issuer. Each Shareholder
disclaims beneficial ownership of such shares in excess of the greater of his
direct or indirect pecuniary interest in such shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Richard A. Ekleberry</signatureName>
        <signatureDate>2003-05-27</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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