Form Type:  SC 13G
Filing Date:  5/9/2012 
CIK:  0000884731 
Address:  26 LANDSDOWNE ST 
City, State, Zip:  CAMBRIDGE, Massachusetts 02139 
Telephone:  (617) 494-0400 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
0.09 (1.39%)  
Trade Time: 
04:00 PM EST  
Market Cap: 
Description of Business
The following Business Section contains forward-looking statements. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain risks, uncertainties and other factors including the risk factors set forth in Part I, Item 1A of this annual report. Unless the content requires otherwise, references to �ARIAD,� �company,� �we,� �our,� and �us,� in this annual report refer to ARIAD Pharmaceuticals, Inc. and our subsidiaries. Overview ARIAD is a global oncology company whose vision is to transform the lives of cancer patients with breakthrough medicines. Our mission is to discover, develop and commercialize small-molecule drugs to treat cancer in patients with the greatest unmet medical need � aggressive cancers where current therapies are inadequate.
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  EXHIBIT 99.1