Benzinga's Volume Movers

Hyperion Therapeutics, Inc. HPTX shares climbed 8.33% to $46.30. The volume of Hyperion Therapeutics shares traded was 3877% higher than normal. Horizon Pharma plc HZNP shares were also up, gaining 14 percent to $24.97 after the company announced its plans to buy Hyperion Therapeutics for $1.1 billion in cash. Cellular Dynamics International, Inc. ICEL surged 107.81% to $16.50. The volume of Cellular Dynamics shares traded 3541% higher than normal. Cellular Dynamics agreed to be acquired by Fujifilm FUJIF for $ 16.50 per share. Catamaran Corporation CTRX shares moved up 24.12% to $59.97. The volume of Catamaran traded was 3360% higher than normal. Catamaran Corporation agreed to be acquired by UnitedHealth's UNH OptumRx business for $61.50 per share in cash. Auspex Pharmaceuticals, Inc. ASPX shares rose 41.79% to $100.54. The volume of Auspex Pharmaceuticals shares traded was 2308% higher than normal. Teva Pharmaceutical Industries Limited TEVA announced its plans to acquire Auspex Pharmaceuticals for $101 per share.