<SEC-DOCUMENT>0000928465-18-000006.txt : 20181221
<SEC-HEADER>0000928465-18-000006.hdr.sgml : 20181221
<ACCEPTANCE-DATETIME>20181221160725
ACCESSION NUMBER:		0000928465-18-000006
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20181221
FILED AS OF DATE:		20181221
DATE AS OF CHANGE:		20181221

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MAYER STANLEY
		CENTRAL INDEX KEY:			0001173510

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15589
		FILM NUMBER:		181249586

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>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-12-21</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001173510</rptOwnerCik>
            <rptOwnerName>MAYER STANLEY</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4532 GOLF VISTA DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>AUSTIN</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78730</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2533</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2018-12-21</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>200</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>200</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted Stock Units (&quot;RSUs&quot;) give the reporting person the right to receive, subject to being a service provider for the issuer on the applicable vesting date, (i) cash equal to the per share Fair Market Value of common stock on the vesting date times the number of shares underlying the RSUs then vesting or (ii) common stock equal to the number of shares underlying the RSUs then vesting, as elected by the reporting person.  Subject to earlier forfeiture under certain circumstances, these RSUs vest as to one-third of the original 200 RSU award on October 23, 2019, October 23, 2020, and October 23, 2021.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Stanley Mayer</signatureName>
        <signatureDate>2018-12-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
