Alexion to Present at the Jefferies & Co. 3rd Annual Healthcare Conference.

CHESHIRE, Conn. -- Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced that Dr. Leonard Bell, Chief Executive Officer of Alexion Pharmaceuticals, will present at the Jefferies & Co. 3rd Annual Healthcare Conference in New York City at 10:15 a.m., ET on Wednesday, June 17, 2009.

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 An archived version of the remarks will also be available through the Company's web site for a limited time following the conference.

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