LEXINGTON, Mass.--(BUSINESS WIRE)--Cubist Pharmaceuticals, Inc. (NASDAQ: CBST) today announced it has been ranked 31st on FORTUNE’s 2010 “100 Fastest-Growing Companies” list and the top pharmaceutical company. In the “Profit Growth” subgroup Cubist ranked 21st. The magazine will be on the newsstands on August 23 and the full list is available today online.