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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 SumXnG//hv0rNAEIIBt2ccb8zZ0By31//ZUglLRFWmvc6Nh4vepA2po6Szdp0Th9
 x7O0PBnUTg781zjZS35LlQ==

<SEC-DOCUMENT>0001209191-03-018582.txt : 20030822
<SEC-HEADER>0001209191-03-018582.hdr.sgml : 20030822
<ACCEPTANCE-DATETIME>20030822145049
ACCESSION NUMBER:		0001209191-03-018582
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030820
FILED AS OF DATE:		20030822

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERICAN VANGUARD CORP
		CENTRAL INDEX KEY:			0000005981
		STANDARD INDUSTRIAL CLASSIFICATION:	AGRICULTURE CHEMICALS [2870]
		IRS NUMBER:				952588080
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4695 MACARTHUR COURT
		CITY:			NEWPORT BEACH
		STATE:			CA
		ZIP:			92660
		BUSINESS PHONE:		9492601200

	MAIL ADDRESS:	
		STREET 1:		4695 MACARTHUR COURT
		CITY:			NEWPORT BEACH
		STATE:			CA
		ZIP:			92660

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AEROCON INC
		DATE OF NAME CHANGE:	19720620

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WINTEMUTE ERIC G
		CENTRAL INDEX KEY:			0001198398

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13795
		FILM NUMBER:		03862229

	BUSINESS ADDRESS:	
		STREET 1:		4695 MACARTHUR COURT SUITE 1250
		CITY:			NEWPORT BEACH
		STATE:			CA
		ZIP:			92660
		BUSINESS PHONE:		9492601200

	MAIL ADDRESS:	
		STREET 1:		4695 MACARTHUR COURT SUITE 1250
		CITY:			NEWPORT BEACH
		STATE:			CA
		ZIP:			92660
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>biv92683_biv1egw.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-08-20</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000005981</issuerCik><issuerName>AMERICAN VANGUARD CORP</issuerName>        <issuerTradingSymbol>AVD</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001198398</rptOwnerCik><rptOwnerName>WINTEMUTE ERIC G</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1></rptOwnerStreet1><rptOwnerStreet2>SUITE 1250</rptOwnerStreet2><rptOwnerCity>NEWPORT BEACH</rptOwnerCity><rptOwnerState>CA</rptOwnerState><rptOwnerZipCode>92660</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>President &amp; CEO</officerTitle></reportingOwnerRelationship></reportingOwner><nonDeriv
ativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value><footnoteId id="F1" /></securityTitle><transactionDate><value>2003-08-20</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>P</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>121000</value></transactionShares><transactionPricePerShare><value>2.1446</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>248696</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value><footnoteId id="F2" /></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Stock Options</value><footnoteId id="F1" /></securit
yTitle><conversionOrExercisePrice><value>2.1446</value></conversionOrExercisePrice><transactionDate><value>2003-08-20</value></transactionDate><deemedExecutionDate><value>2003-08-20</value></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>121000</value></transactionShares><transactionPricePerShare><value>259000</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-01-15</value><footnoteId id="F3" /></exerciseDate><expirationDate><value>2008-01-15</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>121000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>11
2500</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">The number of securities and price are adjusted for stock splits and stock dividends.</footnote><footnote id="F2">After all transactions reported in this Table I, the amount of securities beneficially owned are 248,688, of which 24,836 shares are held by Eric G. Wintemute's minor children for which he is trustee.</footnote><footnote id="F3">All options became fully exercisable on January 15, 2003</footnote></footnotes><ownerSignature><signatureName>Eric G. Wintemute</signatureName><signatureDate>2003-08-21</signatureDate></ownerSignature></ownershipDocument>

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