CALENDAR OF EVENTS

Investor Conferences and Events

Feb 14, 2012	14th Annual BIO CEO & Investor Conference	New York, NY

Feb 15-16, 2012	Leerink Swann Healthcare Conference	New York, NY

Feb 27, 2012	Fourth Quarter and Full Year 2011 Financial Results Conference Call and Webcast	After Market Close

Mar 5-7, 2012	Cowen & Company 32nd Annual Healthcare Conference	Boston, MA

Mar 14, 2012	Barclays Capital 2012 Global Healthcare Conference	Miami, FL

May 16, 2012	Human Genome Sciences Annual Meeting of Shareholders	Gaithersburg, MD