Amgen And Biogen Lead Short Interest Surge In Biotechs By: Benzinga via Benzinga September 14, 2015 at 16:01 PM EDT The number of shares short in the leading biotech and emerging pharmaceutical stocks surged between the August 14 and August 31 ... Read More >> Related Stocks: Acadia Pharmaceutica Alexion Pharmaceuticals Amgen Biogen Idec Biomarin Pharmaceuticals Bristol-Myers Squibb Celgene Corp Gilead Sciences Illumina Inc Incyte Corp Intrexon Corp Merck & Co Vertex Pharmaceuticals