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Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0000880117-09-000009.txt : 20091112
<SEC-HEADER>0000880117-09-000009.hdr.sgml : 20091111
<ACCEPTANCE-DATETIME>20091112090106
ACCESSION NUMBER:		0000880117-09-000009
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20091110
FILED AS OF DATE:		20091112
DATE AS OF CHANGE:		20091112

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Fordonski Thomas J
		CENTRAL INDEX KEY:			0001444292

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19681
		FILM NUMBER:		091174427

	MAIL ADDRESS:	
		STREET 1:		1703 N. RANDALL ROAD
		CITY:			ELGIN
		STATE:			IL
		ZIP:			60123

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SANFILIPPO JOHN B & SON INC
		CENTRAL INDEX KEY:			0000880117
		STANDARD INDUSTRIAL CLASSIFICATION:	SUGAR & CONFECTIONERY PRODUCTS [2060]
		IRS NUMBER:				362419677
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0628

	BUSINESS ADDRESS:	
		STREET 1:		1703 N. RANDALL ROAD
		CITY:			ELGIN
		STATE:			IL
		ZIP:			60123-7820
		BUSINESS PHONE:		847-289-1800

	MAIL ADDRESS:	
		STREET 1:		1703 N. RANDALL ROAD
		CITY:			ELGIN
		STATE:			IL
		ZIP:			60123-7820
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-11-10</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000880117</issuerCik>
        <issuerName>SANFILIPPO JOHN B &amp; SON INC</issuerName>
        <issuerTradingSymbol>JBSS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001444292</rptOwnerCik>
            <rptOwnerName>Fordonski Thomas J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1703 N. RANDALL ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ELGIN</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60123</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP Human Resources</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-11-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5569</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares represent restricted stock units granted under the John B. Sanfilippo &amp; Son, Inc. 2008 Equity Incentive Plan.  Each restricted stock unit represents the contigent right to receive, upon vesting ofthe unit, one share of John B. Sanfilippo &amp; Son, Inc. common stock.  Subject to certain conditions, these units are scheduled to vest on November 10, 2012.  These units, once vested, will generally be eligible to be paid in an equivalent number of shares of the Company's common stock on November 11, 2012 or such other date(s) as are specified by the reporting person in a valid deferral election filed with John B. Sanfilippo &amp; Son, Inc.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Herbert J. Marros as Power of Attorney</signatureName>
        <signatureDate>2009-11-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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