<SEC-DOCUMENT>0001683168-19-000978.txt : 20190408
<SEC-HEADER>0001683168-19-000978.hdr.sgml : 20190408
<ACCEPTANCE-DATETIME>20190408211031
ACCESSION NUMBER:		0001683168-19-000978
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190331
FILED AS OF DATE:		20190408
DATE AS OF CHANGE:		20190408

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MOROUN MATTHEW T
		CENTRAL INDEX KEY:			0001030743
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-15057
		FILM NUMBER:		19738348

	MAIL ADDRESS:	
		STREET 1:		12225 STEPHENS ROAD
		CITY:			WARREN
		STATE:			MI
		ZIP:			48089

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PAM TRANSPORTATION SERVICES INC
		CENTRAL INDEX KEY:			0000798287
		STANDARD INDUSTRIAL CLASSIFICATION:	TRUCKING (NO LOCAL) [4213]
		IRS NUMBER:				710633135
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		297 WEST HENRI DE TONTI BLVD
		CITY:			TONTITOWN
		STATE:			AR
		ZIP:			72770
		BUSINESS PHONE:		4793619111

	MAIL ADDRESS:	
		STREET 1:		297 WEST HENRI DE TONTI BLVD
		CITY:			TONTITOWN
		STATE:			AR
		ZIP:			72770
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-03-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000798287</issuerCik>
        <issuerName>PAM TRANSPORTATION SERVICES INC</issuerName>
        <issuerTradingSymbol>PTSI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001030743</rptOwnerCik>
            <rptOwnerName>MOROUN MATTHEW T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>12225 STEPHENS ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WARREN</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48089</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-03-31</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>205</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>48.94</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>912765</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2992000</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>In Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Award of common stock as part of annual retainer for non-employee directors.</footnote>
        <footnote id="F2">Reflects the distribution of 100,000 shares to the reporting person since the reporting person's last Form 4. These shares were reported as indirectly beneficially owned in trust in the reporting person's prior reports.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ C. Douglas Buford, Jr. as Attorney-in-fact for Matthew T. Moroun</signatureName>
        <signatureDate>2019-04-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
