<SEC-DOCUMENT>0001209191-15-048972.txt : 20150602
<SEC-HEADER>0001209191-15-048972.hdr.sgml : 20150602
<ACCEPTANCE-DATETIME>20150602163452
ACCESSION NUMBER:		0001209191-15-048972
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20150531
FILED AS OF DATE:		20150602
DATE AS OF CHANGE:		20150602

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MICROSTRATEGY INC
		CENTRAL INDEX KEY:			0001050446
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				510323571
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1850 TOWERS CRESCENT PLAZA
		CITY:			TYSONS CORNER
		STATE:			VA
		ZIP:			22182
		BUSINESS PHONE:		7038488600

	MAIL ADDRESS:	
		STREET 1:		1850 TOWERS CRESCENT PLAZA
		CITY:			TYSONS CORNER
		STATE:			VA
		ZIP:			22182

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RICKERTSEN CARL J
		CENTRAL INDEX KEY:			0001203479

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-24435
		FILM NUMBER:		15907295

	MAIL ADDRESS:	
		STREET 1:		C/O MICROSTRATEGY INC
		STREET 2:		1850 TOWERS CRESCENT PLAZA
		CITY:			VIENNA
		STATE:			VA
		ZIP:			22182
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2015-05-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001050446</issuerCik>
        <issuerName>MICROSTRATEGY INC</issuerName>
        <issuerTradingSymbol>MSTR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001203479</rptOwnerCik>
            <rptOwnerName>RICKERTSEN CARL J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MICROSTRATEGY INCORPORATED</rptOwnerStreet1>
            <rptOwnerStreet2>1850 TOWERS CRESCENT PLAZA</rptOwnerStreet2>
            <rptOwnerCity>TYSONS CORNER</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>22182</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Director Stock Option (Right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>175.98</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2015-05-31</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2025-05-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5000</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This option is scheduled to vest as to 1,250 shares on the first anniversary of the grant date, and as to an additional 1,250 shares on each anniversary thereafter until the option is vested in full. This option was granted pursuant to Amendment No. 2 to the MicroStrategy Incorporated 2013 Stock Incentive Plan (&quot;Amendment No. 2&quot;). Amendment No. 2 provides for the annual automatic grant of a stock option to purchase 5,000 shares of Class A common stock to each non-employee director on May 31 of each year, beginning in 2015. Amendment No. 2 was approved by the stockholders of MicroStrategy Incorporated at the 2015 annual meeting.</footnote>
        <footnote id="F2">See Exhibit A.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ W. Ming Shao, Attorney-in-Fact</signatureName>
        <signatureDate>2015-06-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
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<TYPE>EX-99
<SEQUENCE>2
<FILENAME>attachment1.htm
<DESCRIPTION>EX-99 DOCUMENT
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<HEAD>
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<PRE>
Exhibit A:
Mr. Rickertsen also directly owns a director stock option to purchase 35,000
shares of Class A common stock with (i) an exercise price of $121.43 per share
and (ii) and expiration date of 4/30/2024.  Of the 35,000 shares subject to this
option, 8,750 shares vested on April 30, 2015, 8,750 shares are scheduled to
vest on April 30, 2016, 8,750 shares are scheduled to vest on April 30, 2017,
and 8,750 shares are scheduled to vest on April 30, 2018.

</PRE>
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