Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that Dr. Leonard Bell, Chief Executive Officer of Alexion Pharmaceuticals, will present at the 30th Annual JP Morgan Healthcare Conference in San Francisco at 4:30 p.m. Pacific time (7:30 p.m. Eastern) on Tuesday, January 10, 2012.

An audio webcast of Dr. Bell's remarks will be available live. You can access the webcast at: www.alexionpharma.com. An archived version of the remarks will also be available through the Company's web site for a limited time following the conference.

[ALXN-G]

Alexion Pharmaceuticals, Inc.
Irving Adler, 203-271-8210
Sr. Director, Corporate
Communications
or
Makovsky + Company
Mark Marmur, 212-508-9670
Media
or
Rx Communications
Rhonda Chiger, 917-322-2569
Investor