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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 KWqwusX72YKLeq5dqV8Czd8qoigPz8sA+3GHtlW95nBUDgG/jtnFF0tY+LbbYU4c
 3pD54jtM3Yg/1uZyLYhcfQ==

<SEC-DOCUMENT>0001192171-03-000022.txt : 20030707
<SEC-HEADER>0001192171-03-000022.hdr.sgml : 20030704
<ACCEPTANCE-DATETIME>20030707151112
ACCESSION NUMBER:		0001192171-03-000022
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030702
FILED AS OF DATE:		20030707

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CHANG KUO WEI HERBERT
		CENTRAL INDEX KEY:			0001192171

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30877
		FILM NUMBER:		03776886

	MAIL ADDRESS:	
		STREET 1:		C/O MARVELL SEMI CONDUCTOR INC
		STREET 2:		700 FIRST AVE
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94089

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MARVELL TECHNOLOGY GROUP LTD
		CENTRAL INDEX KEY:			0001058057
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				770481679
		STATE OF INCORPORATION:			D0
		FISCAL YEAR END:			0131

	BUSINESS ADDRESS:	
		STREET 1:		4TH FLOOR, WINDSOR PLACE
		STREET 2:		22 QUEEN STREET, P.O. BOX HM 1179
		CITY:			HAMILTON HM EX BERMU
		STATE:			D0
		BUSINESS PHONE:		4412966395
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-07-02</periodOfReport>
    <issuer>
        <issuerCik>0001058057</issuerCik>
        <issuerName>MARVELL TECHNOLOGY GROUP LTD</issuerName>
        <issuerTradingSymbol>MRVL</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId>
            <rptOwnerCik>0001192171</rptOwnerCik>
            <rptOwnerName>CHANG KUO WEI HERBERT</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeSecurity><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-07-02</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>35000</value></transactionShares><transactionValue><value>37.0225</value></transactionValue><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value><footnoteId id="F1"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>By Investar Burgeon Venture Capital, Inc.</value><footno
teId id="F2"/></natureOfOwnership></ownershipNature></nonDerivativeSecurity><footnotes><footnote id="F1">The Reporting Person also has indirect beneficial ownership in the following:  85,286 shares held by Investar Capital Inc., and 6,814 shares held by Spouse.  The Reporting Person disclaims beneficial ownership of the shares held by his Spouse.  In addition, Reporting Person also has direct beneficial ownership of 370,665 shares.</footnote><footnote id="F2">Footnote for Table II - Summary of Derivative Securities: The Reporting Person owns directly three Stock Options (Right to Buy) with different vesting schedules described as follows: (i) 30,000 shares granted on June 26, 2000 at $15.00 per share, vests 20% on 06/26/01 and 500 shares per month from 07/26/01 through 06/26/05; (ii) 6,000 shares granted on June 21, 2001 at $20.58 per share, vests 500 shares per month from 07/21/05 through 06/21/06; and (iii) 6,000 shares granted on June 21, 2002 at $21.59 per share, vests 500 shares per month from 07/21/06 
through 06/21/07.  All three Stock Options are immediately exerciseable but not fully vested, and until fully vested, if exercised, would be subject to repurchase by the Company as to the unvested shares in the event of termination of the reporting person's services as a non-employee director of the Company. </footnote></footnotes><ownerSignature><signatureName>Matthew Gloss, by Power of Attorney</signatureName><signatureDate>2003-07-07</signatureDate></ownerSignature></ownershipDocument>

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