CAMBRIDGE, Mass.--(BUSINESS WIRE)--Biogen Idec Inc. (NASDAQ: BIIB), a global biotechnology leader in the discovery, development, manufacturing and commercialization of innovative therapies, today announced the appointment of Brian S. Posner to its Board of Directors, increasing the Board to 13 members. Mr. Posner, a private investor, served as Chief Executive Officer and co-Chief Investment Officer of ClearBridge Advisors LLC from 2005 until March 2008. ClearBridge, a wholly owned subsidiary of Legg Mason Inc., is an asset management company based in New York with approximately $90 billion in assets.
