<SEC-DOCUMENT>0000880117-12-000002.txt : 20120223
<SEC-HEADER>0000880117-12-000002.hdr.sgml : 20120223
<ACCEPTANCE-DATETIME>20120223162750
ACCESSION NUMBER:		0000880117-12-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20120221
FILED AS OF DATE:		20120223
DATE AS OF CHANGE:		20120223

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SANFILIPPO JEFFREY T
		CENTRAL INDEX KEY:			0001171340

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19681
		FILM NUMBER:		12634221

	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>X0304</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2012-02-21</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001171340</rptOwnerCik>
            <rptOwnerName>SANFILIPPO JEFFREY T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1703 N. RANDALL ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ELGIN</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60123-7820</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2012-02-21</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10.7955</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14000</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18832</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>As Co-Trustee</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The reporting person above sold the shares of Common Stock listed herein pursuant to a written agreement between James J. Sanfilippo and the reporting person, among others.  Under the agreement, the reporting person sold shares of Common Stock of John B. Sanfilippo &amp; Son, Inc. (the Company) under Rule 144 of the Securities Act of 1933, and with the proceeds of such sale will purchase or cause to be purchased, an equal number of shares of Class A Common Stock of the Company from James J. Sanfilippo</footnote>
        <footnote id="F2">As a result of the transactions described herein, the reporting person will own the same number of shares of common equity (defined as the total combined number of shares of Class A Common Stock and Common Stock) of the Company as owned prior to this filing.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Herbert J. Marros as Power of Attorney</signatureName>
        <signatureDate>2012-02-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
