Press Releases
June 10, 2013

Alexion Update Regarding Presentations at Investor Conferences

CHESHIRE, Conn.--(BUSINESS WIRE)-- Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced an update on one of two previously announced management presentations at upcoming investor conferences.

Dr. Leonard Bell, Chief Executive Officer of Alexion, will present at the Goldman Sachs 34th Annual Global Healthcare Conference in Rancho Palos Verdes, CA on Wednesday, June 12th at 8:40 a.m., Pacific Time (11:40 a.m., Eastern time).

However, due to an unforeseen scheduling conflict, an Alexion representative will be unable to present at the William Blair 33rd Annual Growth Stock Conference in Chicago, scheduled for later this week.

An audio webcast of the June 12th presentation at Goldman Sachs 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 An archived version of the remarks will also be available through the Company's web site for a limited time following the conference.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
Executive Director, Corporate Communications
or
Investors
Rx Communications
Rhonda Chiger, 917-322-2569

Source: Alexion Pharmaceuticals, Inc.

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