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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 4rs/jOjk5/mjI13kIAv5sg==

<SEC-DOCUMENT>0000931948-08-000021.txt : 20080527
<SEC-HEADER>0000931948-08-000021.hdr.sgml : 20080526
<ACCEPTANCE-DATETIME>20080527182144
ACCESSION NUMBER:		0000931948-08-000021
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080508
FILED AS OF DATE:		20080527
DATE AS OF CHANGE:		20080527

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STILLWATER MINING CO /DE/
		CENTRAL INDEX KEY:			0000931948
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS METAL ORES [1090]
		IRS NUMBER:				810480654
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1321 DISCOVERY DRIVE
		CITY:			BILLINGS
		STATE:			MT
		ZIP:			59102
		BUSINESS PHONE:		406.373.8700

	MAIL ADDRESS:	
		STREET 1:		1321 DISCOVERY DRIVE
		CITY:			BILLINGS
		STATE:			MT
		ZIP:			59102

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RIEGLE DONALD W JR
		CENTRAL INDEX KEY:			0001195829

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13053
		FILM NUMBER:		08861874

	MAIL ADDRESS:	
		STREET 1:		ANTHEM INC.
		STREET 2:		120 MONUMENT CIRCLE
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46204
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-05-08</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000931948</issuerCik>
        <issuerName>STILLWATER MINING CO /DE/</issuerName>
        <issuerTradingSymbol>swc</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001195829</rptOwnerCik>
            <rptOwnerName>RIEGLE DONALD W JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ANTHEM INC.</rptOwnerStreet1>
            <rptOwnerStreet2>120 MONUMENT CIRCLE</rptOwnerStreet2>
            <rptOwnerCity>INDIANAPOLIS</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>46204</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-05-08</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2008-05-27</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2817</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9443</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <remarks>Upon re-election to the Board of Directors on May 8, 2008, said individual was granted Stillwater Mining Company restricted stock units under the Stillwater Mining Company 2004 Equity Incentive Plan.  These units are scheduled to vest on November 8, 2008, at which time the recipient will receive shares equal to the number of units.</remarks>

    <ownerSignature>
        <signatureName>/s/  Donald W. Riegle, Jr.</signatureName>
        <signatureDate>2008-05-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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