Company:  MEDIDATA SOLUTIONS, INC. (MDSO)
Form Type:  4
Filing Date:  7/9/2012 
CIK:  0001453814 
Address:  79 FIFTH AVENUE, 8TH FLOOR 
City, State, Zip:  NEW YORK, New York 10003 
Telephone:  212.918.1800 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$74.10  
Change: 
1.89 (2.62%)  
Trade Time: 
04:00 PM EST  
Market Cap: 
$1.97B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES