Jim Mullen, CEO of Biogen Idec,
Rings The NASDAQ Stock Market Opening Bell

Friday, May 19, 2006
at NASDAQ's MarketSite
in New York City.

Biogen Idec [BIIB]

Jim Mullen, CEO of Biogen Idec (Nasdaq: BIIB) presides over the opening bell to celebrate the 10th Anniversary of blockbuster multiple sclerosis drug, AVONEX(R) (Interferon beta-1a).

Biogen Idec creates new standards of care in oncology, neurology and immunology. As a global leader in the development, manufacturing, and commercialization of novel therapies, Biogen Idec transforms scientific discoveries into advances in human healthcare. For product labeling, press releases and additional information about the company, please visit http://www.biogenidec.com.

Click for larger pictures of the NASDAQ MarketSite. Additional Photographs for 5/19/2006 Download Hi-Res Quality Photo of this NASDAQ Market Open - Pictured: Jim Mullen, CEO of Biogen Idec, rings the Opening Bell These photos are Copyright 2006, The Nasdaq Stock Market Inc. and available for re-publication by the news media only. Any commercial use is strictly prohibited without the prior written consent of The Nasdaq Stock Market Inc. © Copyright 2006, The NASDAQ Stock Market, Inc. Reprinted with the permission of The Nasdaq Stock Market, Inc.