WASHINGTON--(BUSINESS WIRE)--The Biotechnology Industry Organization (BIO) today announced that President and CEO James C. Greenwood will ring the closing bell at The NASDAQ Stock Market on February 15, 2011 together with numerous executives representing the life science industry. This ceremony concludes the 13th Annual BIO CEO & Investor Conference – the largest independent investor conference focused on publicly-traded biotechnology companies. Over 200 US biotech companies are listed on the NASDAQ exchange.