Company:  OSIRIS THERAPEUTICS, INC. (OSIR)
Form Type:  4
Filing Date:  3/27/2012 
CIK:  0001360886 
Address:  7015 ALBERT EINSTEIN DRIVE 
City, State, Zip:  COLUMBIA, Maryland 21046 
Telephone:  443-545-1819 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$10.96  
Change: 
-0.11 (-0.99%)  
Trade Time: 
01:19 PM EST  
Market Cap: 
$360.93M
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES