Company:  ALKERMES PLC. (ALKS)
Form Type:  SC 13D/A
Filing Date:  3/14/2012 
CIK:  0001520262 
Address:  TREASURY BUILDING
LOWER GRAND CANAL STREET
 
City, State, Zip:  DUBLIN 2,  00000 
Telephone:  00-353-1-649-2000 
Fiscal Year:  03/31 
Last Trade
Last Trade: 
$31.75  
Change: 
-0.23 (-0.72%)  
Trade Time: 
04:00 PM EST  
Market Cap: 
$4.23B
Description of Business
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  FORM SC 13D/A