Biogen Idec Inc. (NASDAQ: BIIB) announced today that its 2012 Annual Shareholders Meeting will be webcast live on Friday, June 8, 2012 at 9:00 a.m. ET. To access the live webcast, please visit Biogen Idec’s Investor Relations section (investor.biogenidec.com). An archived version of the webcast will be available following the meeting.

About Biogen Idec

Through cutting-edge science and medicine, Biogen Idec discovers, develops and delivers to patients worldwide innovative therapies for the treatment of neurodegenerative diseases, hemophilia and autoimmune disorders. Founded in 1978, Biogen Idec is the world’s oldest independent biotechnology company. Patients worldwide benefit from its leading multiple sclerosis therapies, and the company generates more than $5 billion in annual revenues. For product labeling, press releases and additional information about the company, please visit www.biogenidec.com.