Peregrine Pharmaceuticals Inc. (NASDAQ:PPHM) was the recipient of a significant decline in short interest in the month of September. As of September 15th, there was short interest totalling 845,556 shares, a decline of 32.5% from the August 31st total of 1,253,010 shares. Currently, 0.4% of the shares of the company are sold short. Based on […]