Press Releases
February 27, 2012

Alexion to Present at the Cowen and Company 32nd Annual Health Care Conference

CHESHIRE, Conn.--(BUSINESS WIRE)-- Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that Dr. Leonard Bell, Chief Executive Officer of Alexion Pharmaceuticals, will present at the Cowen and Company 32nd Annual Health Care Conference in Boston at 1:30 p.m. Eastern time on Monday, March 5, 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 An archived version of the remarks will also be available through the Company's web site for a limited time following the conference.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
Kim Diamond (Media), 203-439-9600
Director, Corporate Communications
or
Rx Communications
Rhonda Chiger (Investor), 917-322-2569

Source: Alexion Pharmaceuticals, Inc.

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