-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 O2w90r9+3oYDel5wucfkBfn2oVFPs1LKPJujNZc5lK5WZmzgyrvr15WAKmm1TNH9
 lNySuWsnm4OfofYMwT1ieQ==

<SEC-DOCUMENT>0001014108-09-000175.txt : 20090722
<SEC-HEADER>0001014108-09-000175.hdr.sgml : 20090722
<ACCEPTANCE-DATETIME>20090722175949
ACCESSION NUMBER:		0001014108-09-000175
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090720
FILED AS OF DATE:		20090722
DATE AS OF CHANGE:		20090722

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ATAYAN CHRISTOPHER H
		CENTRAL INDEX KEY:			0001307899

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15589
		FILM NUMBER:		09957764

	MAIL ADDRESS:	
		STREET 1:		C/O SLUSSER ASSOCIATES, INC.
		STREET 2:		153 EAST 53RD STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMCON DISTRIBUTING CO
		CENTRAL INDEX KEY:			0000928465
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-GROCERIES & GENERAL LINE [5141]
		IRS NUMBER:				470702918
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		7405 IRVINGTON ROAD
		STREET 2:		POST OFFICE BOX 641940 (68164-7940)
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68122
		BUSINESS PHONE:		4023313727

	MAIL ADDRESS:	
		STREET 1:		7405 IRVINGTON ROAD
		STREET 2:		POST OFFICE BOX 641940 (68164-7940)
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68122
</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>2009-07-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000928465</issuerCik>
        <issuerName>AMCON DISTRIBUTING CO</issuerName>
        <issuerTradingSymbol>DIT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307899</rptOwnerCik>
            <rptOwnerName>ATAYAN CHRISTOPHER H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AMCON DISTRIBUTING COMPANY</rptOwnerStreet1>
            <rptOwnerStreet2>515 NORTH STATE STREET, SUITE 2650</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60654</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO and Chairman</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>118019</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series B Convertible Preferred Stock, par value $.01</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>24.65</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2004-10-08</value>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8113.5</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8000</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>18</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-12-12</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeTransaction>
            <securityTitle>
                <value>Series A Convertible Preferred Stock, par value $.01</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>30.31</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2009-07-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>80000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2004-08-05</value>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F5"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>82481</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The applicable conversion and exercise price and number of shares issuable on conversion or exercise are subject to anti-dulution adjustments.</footnote>
        <footnote id="F2">The Issuer may redeem the Series B Convertible Preferred Stock, at its option, commencing on October 9, 2006 and, at the option of the holder, must be redeemed upon a change of control, as defined in the Series B Convertible Preferred Stock.  The Series B Convertible Preferred Stock does not have an expiration date and will remain outstanding and convertible at the option of the holder until converted or redeemed.</footnote>
        <footnote id="F3">Pursuant to an agreement among the Reporting Person, another individual (the &quot;Second Participant&quot;), and the holder of the Series B Convertible Preferred Stock, the holder has granted to the Reporting Person and the Second Participant a 20% participation interest in any capital gains realized by the holder from its investment in the Issuer, to be shared equally by the Reporting Person and the Second Participant.  As a result of such participation interest, the Reporting Person may be deemed to have a pecuniary interest in such stock for purposes of 16a(2)(i) under the Securities Exchange Act of 1934.  The Reporting Person does not possess the power to vote or dispose of the Series B Convertible Preferred Stock or to direct the vote or disposition of such stock, and disclaims any beneficial interest in such stock in excess of such pecuniary interest.</footnote>
        <footnote id="F4">The stock option vests and is exercisable in three equal annual installments beginning December 12, 2007.</footnote>
        <footnote id="F5">The Issuer may redeem the Series A Convertible Preferred Stock, at its option, commencing on June 17, 2006 and, at the option of the holder, must be redeemed upon a change of control, as defined in the Series A Convertible Preferred Stock.  The Series A Convertible Preferred Stock does not have an expiration date and will remain outstanding and convertible at the option of the holder until converted or redeemed.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Andrew C. Plummer, Attorney-in-Fact for Christopher H. Atayan</signatureName>
        <signatureDate>2009-07-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
