Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that the Company will report its financial results for the first quarter ended March 31, 2013 on Thursday, April 25, 2013 before the US financial markets open. Following the release of the financial results, Alexion management will conduct a conference call and audio web cast on Thursday, April 25, 2013, at 10:00 a.m. Eastern Time (ET).