Short Interest in Vertex Rises, in Biogen Idec Falls
May 29, 2013 at 13:19 PM EDT
Among biotech and emerging pharmaceutical companies, Regeneron Pharmaceuticals (NASDAQ: REGN ) and Vertex Pharmaceuticals (NASDAQ: VRTX ) saw he most significant rise in short interest between the April 30 and May 15 settlement dates. The number of shares sold short in Alexion Pharmaceuticals (NASDAQ: ALXN ), Arena
