Alexion Pharmaceuticals, Inc. announced that Mr. Patrice Coissac, Senior Vice President of the company and President of Alexion Pharma International Sàrl will retire from Alexion effective February 8, 2013. Mr. Coissac joined Alexion in November 2005 as Senior Vice President and President of Alexion Europe SAS and has served as President of Alexion Pharma International Sàrl since April 2009. Mr. Coissac's responsibilities have been assumed by Mr. Frank Wright, who joined Alexion as Senior Vice President in December 2012.

Mr. Wright will also be appointed the President of Alexion Pharma International Sàrl.