Benzinga's Volume Movers

HeartWare International Inc HTWR surged 91.86 percent to $57.52. The volume of HeartWare shares traded was 4041 percent higher than normal. Medtronic PLC MDT announced its plans to acquire HeartWare for $58 per share in cash.
GW Pharmaceuticals PLC- ADR GWPH shares moved up 9.36 percent to $91.11. The volume of GW Pharmaceuticals traded was 1038 percent higher than normal. GW Pharmaceuticals' Epidiolex met primary endpoint in the phase three pivotal trial results for the treatment of Lennox-Gastaut Syndrome.
Randgold Resources Ltd. (ADR) GOLD shares climbed 6.89 percent to $108.14. The volume of Randgold shares traded was 125 percent higher than normal. Analysts at Goldman upgraded Randgold from Neutral to Buy.
Nippon Telegraph & Telephone Corp (ADR) NTT shares rose 4.83 percent to $45.77. The volume of Nippon Telegraph & Telephone shares traded was 25 percent higher than normal. Nippon Telegraph & Telephone shares have surged 21.96 percent over the past 52 weeks, while the S&P 500 index has declined 0.99 percent in the same period.