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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001005794-04-000542.txt : 20040720
<SEC-HEADER>0001005794-04-000542.hdr.sgml : 20040720
<ACCEPTANCE-DATETIME>20040720111403
ACCESSION NUMBER:		0001005794-04-000542
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040716
FILED AS OF DATE:		20040720

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KING PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0001047699
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		STATE OF INCORPORATION:			TN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26770
		FILM NUMBER:		04921415

	BUSINESS ADDRESS:	
		STREET 1:		501 FIFTH ST
		CITY:			BRISTOL
		STATE:			TN
		ZIP:			37620
		BUSINESS PHONE:		4239898000

	MAIL ADDRESS:	
		STREET 1:		501 FIFTH ST
		CITY:			BRISTOL
		STATE:			TN
		ZIP:			37620

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NOVAVAX INC
		CENTRAL INDEX KEY:			0001000694
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				222816046
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8320 GUILFORD RD
		STREET 2:		STE C
		CITY:			COLUMBIA
		STATE:			MD
		ZIP:			21046
		BUSINESS PHONE:		3078543900

	MAIL ADDRESS:	
		STREET 1:		8320 GUILFORD ROAD SUITE C
		STREET 2:		12111 PARKLAWN DR
		CITY:			COLUMBIA
		STATE:			MD
		ZIP:			21046
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
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    <schemaVersion>X0202</schemaVersion>

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    <periodOfReport>2004-07-16</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001000694</issuerCik>
        <issuerName>NOVAVAX INC</issuerName>
        <issuerTradingSymbol>NVAX</issuerTradingSymbol>
    </issuer>

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        <reportingOwnerId>
            <rptOwnerCik>0001047699</rptOwnerCik>
            <rptOwnerName>KING PHARMACEUTICALS INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>501 FIFTH ST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BRISTOL</rptOwnerCity>
            <rptOwnerState>TN</rptOwnerState>
            <rptOwnerZipCode>37620</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-07-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
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            <transactionTimeliness>
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            <transactionAmounts>
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                <transactionPricePerShare>
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            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>4% Convertible Senior Note</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.705</value>
            </conversionOrExercisePrice>
            <transactionDate>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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            <exerciseDate>
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            <securityTitle>
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                <transactionAcquiredDisposedCode>
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                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>4% Convertible Senior Note</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.595</value>
            </conversionOrExercisePrice>
            <transactionDate>
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            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
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            <transactionTimeliness>
                <value></value>
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            <transactionAmounts>
                <transactionShares>
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                </transactionShares>
                <transactionPricePerShare>
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                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2004-07-16</value>
            </exerciseDate>
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                <value>2007-12-19</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
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            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.305</value>
            </conversionOrExercisePrice>
            <transactionDate>
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            </transactionDate>
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                <transactionFormType>4</transactionFormType>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
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                </transactionShares>
                <transactionPricePerShare>
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                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <value>2004-07-16</value>
            </exerciseDate>
            <expirationDate>
                <value>2007-12-19</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1855014</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
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                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Of the shares of Common Stock acquired by the Reporting Person, 3,252,033 shares were acquired in consideration for the Reporting Person executing and delivering, and causing its subsidiary, Parkedale Pharmaceuticals, Inc. (&quot;Parkedale&quot;), to execute and deliver, to the Issuer a termination agreement providing for, among other things, the release by the Reporting Person and Parkedale of all of their rights under certain agreements between the Reporting Person, Parkedale or any of their respective subsidiaries, on the one hand, and the Issuer or any of its subsidiaries, on the other hand.  The remaining 523,577 of the shares of Common Stock were acquired by the Reporting Person in consideration for the Reporting Person permitting the Issuer to make offers of employment to certain employees of the Reporting Person and its affiliates.</footnote>
        <footnote id="F2">Simultaneously with the transactions described in Note (1) to this report, the Reporting Person delivered the convertible notes shown in Table II to the Issuer in consideration for a cash payment of $22,000,000.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>James R. Lattanzi</signatureName>
        <signatureDate>2004-07-20</signatureDate>
    </ownerSignature>
</ownershipDocument>

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