X0304 4 2012-03-01 0 0001050446 MICROSTRATEGY INC MSTR 0001079782 SAYLOR MICHAEL J C/O MICROSTRATEGY INCORPORATED 1850 TOWERS CRESCENT PLAZA TYSONS CORNER VA 22182 1 1 1 0 Chairman, President and CEO 0001269225 ALCANTARA LLC C/O MICHAEL J. SAYLOR 1850 TOWERS CRESCENT PLAZA TYSONS CORNER VA 22182 0 0 1 0 Class A Common Stock 2012-03-02 4 S 0 100 139.18 D 0 I Shares owned by LLC Class A Common Stock 2012-03-02 4 S 0 100 139.182 D 0 I Shares owned by LLC Class A Common Stock 2012-03-02 4 S 0 100 139.22 D 0 I Shares owned by LLC The reporting persons converted 23,100 shares of Class B Common Stock into 23,100 shares of Class A Common Stock on March 5, 2012 for the purpose of settling the sale transactions reported on the Forms 4 filed by the reporting persons on March 5, 2012. Upon settlement of all of these sale transactions, the reporting persons will beneficially own 0 shares of Class A Common Stock. This is the fourth Form 4 of four Form 4 filings made by the reporting persons to report transactions that occurred on March 1, 2012, March 2, 2012, and March 5, 2012. /s/ Michael J. Saylor, Individually and as Sole Member of Alcantara LLC 2012-03-05