<SEC-DOCUMENT>0001193125-18-045571-index.html : 20180214
<SEC-HEADER>0001193125-18-045571.hdr.sgml : 20180214
<ACCEPTANCE-DATETIME>20180214160403
ACCESSION NUMBER:		0001193125-18-045571
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20180214
DATE AS OF CHANGE:		20180214

SUBJECT COMPANY:	

	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

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-54429
		FILM NUMBER:		18612168

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SAYLOR MICHAEL J
		CENTRAL INDEX KEY:			0001079782
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	MAIL ADDRESS:	
		STREET 1:		C/O MICROSTRATEGY INC
		STREET 2:		1850 TOWERS CRESCENT PLAZA
		CITY:			VIENNA
		STATE:			VA
		ZIP:			22182
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>d536248dsc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: d536248dsc13ga.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>d536248dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: d536248dex991.htm

</DOCUMENT>
</SEC-DOCUMENT>