-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 CwVS43Z/WX1jvyvzsqWh1ns5TJFr0X8rMHR34sGJRek4sUY3xNXLRsFd/CZE5GJQ
 C7PvM3GQGh2m59gAlvdMnw==

<SEC-DOCUMENT>0001179110-03-005960.txt : 20030820
<SEC-HEADER>0001179110-03-005960.hdr.sgml : 20030820
<ACCEPTANCE-DATETIME>20030820130711
ACCESSION NUMBER:		0001179110-03-005960
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030819
FILED AS OF DATE:		20030820

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SEIDEL THOMAS
		CENTRAL INDEX KEY:			0001207684

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-17139
		FILM NUMBER:		03857579

	MAIL ADDRESS:	
		STREET 1:		965 E EL CAMINO REAL
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94087

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENUS INC
		CENTRAL INDEX KEY:			0000837913
		STANDARD INDUSTRIAL CLASSIFICATION:	SPECIAL INDUSTRY MACHINERY, NEC [3559]
		IRS NUMBER:				942790804
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1139 KARLSTAD DRIVE
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94089-2117
		BUSINESS PHONE:		4087477120

	MAIL ADDRESS:	
		STREET 1:		1139 KARLSTAD DRIVE
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94089-2117
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
<periodOfReport>2003-08-19</periodOfReport>
<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000837913</issuerCik>
        <issuerName>GENUS INC</issuerName>
        <issuerTradingSymbol>GGNS</issuerTradingSymbol>
</issuer>
<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001207684</rptOwnerCik>
            <rptOwnerName>SEIDEL THOMAS</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1139 KARLSTAD DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SUNNYVALE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94089</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector>
<isOfficer>1</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle>EVP &amp; CTO</officerTitle>
<otherText></otherText>
</reportingOwnerRelationship>
</reportingOwner>
<nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value>
</securityTitle>
<transactionDate><value>2003-08-19</value>
</transactionDate>
<transactionCoding><transactionFormType>4</transactionFormType>
<transactionCode>M</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionAmounts><transactionShares><value>30370</value>
</transactionShares>
<transactionPricePerShare><value>0.875</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode><value>A</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts><sharesOwnedFollowingTransaction><value>60258</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature><directOrIndirectOwnership><value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</nonDerivativeTransaction>
<nonDerivativeTransaction><securityTitle><value>Common Stock</value>
</securityTitle>
<transactionDate><value>2003-08-19</value>
</transactionDate>
<transactionCoding><transactionFormType>4</transactionFormType>
<transactionCode>S</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionAmounts><transactionShares><value>30370</value>
</transactionShares>
<transactionPricePerShare><value>3.0293</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode><value>D</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts><sharesOwnedFollowingTransaction><value>29888</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature><directOrIndirectOwnership><value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</nonDerivativeTransaction>
</nonDerivativeTable>
<derivativeTable><derivativeTransaction><securityTitle><value>Employee Stock Option (right to buy)</value>
</securityTitle>
<conversionOrExercisePrice><value>0.875</value>
</conversionOrExercisePrice>
<transactionDate><value>2003-08-19</value>
</transactionDate>
<transactionCoding><transactionFormType>4</transactionFormType>
<transactionCode>M</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionAmounts><transactionShares><value>30370</value>
</transactionShares>
<transactionPricePerShare><value>0.875</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode><value>D</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate><value>2001-09-21</value>
<footnoteId id="F1"></footnoteId>
</exerciseDate>
<expirationDate><value>2003-09-21</value>
</expirationDate>
<underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares><value>30370</value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts><sharesOwnedFollowingTransaction><value>205370</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature><directOrIndirectOwnership><value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeTransaction>
</derivativeTable>
<footnotes><footnote id="F1">The option vested 1/36th per month from 09/21/98</footnote>
</footnotes>
<ownerSignature><signatureName>/s/ Thomas E. Seidel</signatureName>
<signatureDate>2003-08-20</signatureDate>
</ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----