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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 U/ev0ApQP6e9C8oWoAaUJVB66JXrPUgCH3zjmSHTNzBEWpCmoHfZKYZqVY/oSk3/
 41arhqGtTG0aL6kXv9pdwg==

<SEC-DOCUMENT>0001198230-03-000012.txt : 20030522
<SEC-HEADER>0001198230-03-000012.hdr.sgml : 20030522
<ACCEPTANCE-DATETIME>20030522170543
ACCESSION NUMBER:		0001198230-03-000012
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030521
FILED AS OF DATE:		20030522

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MERTON ROBERT C
		CENTRAL INDEX KEY:			0001201888

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21088
		FILM NUMBER:		03716764

	BUSINESS ADDRESS:	
		STREET 1:		9373 TOWNE CENTRE DRIVE
		STREET 2:		SUITE 100
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121-3088
		BUSINESS PHONE:		8586461100

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VICAL INC
		CENTRAL INDEX KEY:			0000819050
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				930948554
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		10390 PACIFIC CENTER COURT
		STREET 2:		.
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121-4340
		BUSINESS PHONE:		858-646-1100

	MAIL ADDRESS:	
		STREET 1:		10390 PACIFIC CENTER COURT
		STREET 2:		.
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121-4340
</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>2003-05-21</periodOfReport>
    <issuer>
        <issuerCik>0000819050</issuerCik>
        <issuerName>VICAL INC</issuerName>
        <issuerTradingSymbol>VICL</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId>
            <rptOwnerCik>0001201888</rptOwnerCik>
            <rptOwnerName>MERTON ROBERT C</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><derivativeSecurity><securityTitle><value>Nonstatutory Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>3.589</value></conversionOrExercisePrice><transactionDate><value>2003-05-21</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>12500</value></transactionShares><transactionValue><value>0</value></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-05-21</value><footnoteId id="F1"/></exerciseDate><expirationDate><value>2013-05-20</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock, $.01 par value</value></underl
yingSecurityTitle><underlyingSecurityShares><value>12500</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>12500</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeSecurity><footnotes><footnote id="F1">The date in this field is approximate.  These options are exercisable at the date of the next annual meeting of stockholders.  The date of the meeting has not been set, but is expected to occur in May 2004.</footnote></footnotes><ownerSignature><signatureName>/s/ Glen E. Medwid (via Power of Attorney)</signatureName><signatureDate>2003-05-22</signatureDate></ownerSignature></ownershipDocument>

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