NEW YORK, March 29, 2011 (GLOBE NEWSWIRE) -- Alexion Pharmaceuticals, Inc. (Nasdaq:ALXN) will become a component of the NASDAQ-100 Index® (Nasdaq:NDX), the NASDAQ-100 Equal Weighted Index (Nasdaq:NDXE) and the NASDAQ-100 Ex-Tech Sector Index (Nasdaq:NDXX) prior to market open on Monday, April 4, 2011. Alexion Pharmaceuticals, Inc. will replace Genzyme Corporation (Nasdaq:GENZ).
