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Benzinga's Top #PreMarket Gainers


Auspex Pharmaceuticals (NASDAQ: ASPX) shares jumped 87.76% to $47.11 following positive SD-809 trial results.

Volcano (NASDAQ: VOLC) shares rose 55.44% to $17.86 in pre-market trading after Philips (NYSE: PHG) agreed to acquire Volcano for $18.00 per share.

Cerus (NASDAQ: CERS) shares surged 20.29% to $5.75 in pre-market trading after the company confirmed the FDA approval of INTERCEPT Blood System for plasma.

American Apparel (NYSE: APP) shares jumped 17.24% to $0.68 in pre-market trading after the company fired its controversial founder Dov Charney. The company named Paula Schneider CEO effective January 5, replacing Scott Brubaker, who had served as interim CEO and who will continue as a consultant.

TASER International (NASDAQ: TASR) shares gained 4.60% to $23.90 in the pre-market trading session after the company announced the purchase of 860 AXON body-worn video cameras and a 5-year subscription to by the Los Angeles Police Department.


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