Press Releases
April 30, 2012

Alexion to Present at Deutsche Bank Securities 37th Annual Health Care Conference

CHESHIRE, Conn.--(BUSINESS WIRE)-- Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that Vikas Sinha, Chief Financial Officer of Alexion Pharmaceuticals, will present at the Deutsche Bank Securities 37th Annual Health Care Conference in Boston at 11:20 a.m. Eastern time on Monday, May 7th, 2012.

An audio webcast of Mr. Sinha'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 An archived version of the remarks will also be available through the Company's web site for a limited time following the conference.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
Media
Alexion Pharmaceuticals, Inc.
Kim Diamond, 203-439-9600
Director, Corporate Communications
or
Investors
Rx Communications
Rhonda Chiger, 917-322-2569

Source: Alexion Pharmaceuticals, Inc.

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