Biogen Idec Inc. (NASDAQ: BIIB) announced today that it will present at the Cowen and Company 35th Annual Healthcare Conference. The webcast will be live on Monday, March 2, 2015 at 2:50 p.m. ET. To access the live webcast, please visit Biogen Idec’s Investors section at www.biogenidec.com. An archived version of the webcast will be available for 14 days following the presentation.

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, hematologic conditions and autoimmune disorders. Founded in 1978, Biogen Idec is the world’s oldest independent biotechnology company and patients worldwide benefit from its leading multiple sclerosis and innovative hemophilia therapies. For product labeling, press releases and additional information about the Company, please visit www.biogenidec.com.