X0306 4 2012-09-06 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 Class A Common Stock 2012-09-06 4 M 0 39521 20.69 A 39521 D Class A Common Stock 2012-09-06 4 S 0 23521 127.3536 D 16000 D Class A Common Stock 2012-09-06 4 S 0 12671 128.3016 D 3329 D Class A Common Stock 2012-09-06 4 S 0 3329 129.0482 D 0 D Employee Stock Option (right to buy) 20.69 2012-09-06 4 M 0 39521 0.00 D 2013-02-08 Class A Common Stock 39521 0 D The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $127.00 to $127.99, inclusive. The reporting person undertakes to provide to MicroStrategy Incorporated, any security holder of MicroStrategy Incorporated, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes 1, 2, and 3 to this Form 4. The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $128.00 to $128.77, inclusive. The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $129.00 to $129.30, inclusive. The 39,521 shares exercised on 09/06/2012 pursuant to this stock option vested on 02/08/2008. See Exhibit A. /s/ W. Ming Shao, Attorney-in-Fact 2012-09-10