Company:  DYAX CORP (DYAX)
Form Type:  SC 13G/A
Filing Date:  2/13/2012 
CIK:  0000907562 
Address:  55 NETWORK DRIVE 
City, State, Zip:  BURLINGTON, Massachusetts 01803-2756 
Telephone:  617-250-5769 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$2.54  
Change: 
0.05 (2.01%)  
Trade Time: 
May 17  
Market Cap: 
$277.32M
Description of Business
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  FORM SC 13G/A