Benzinga's Volume Movers

shares rose 12.37 percent to $26.75. The volume of ACADIA Pharmaceuticals shares traded was 634 percent higher than normal. A U.S. Food and Drug Administration panel voted 12-2 on Tuesday that Acadia's drug pimavanserin, a treatment for psychosis associated with Parkinson's disease, outweighed the risks of treatment.

shares moved up 9.31 percent to $66.94. The volume of Lululemon traded was 300 percent higher than normal. Lululemon reported better-than-expected results for its fourth quarter on Wednesday.

shares climbed 4.61 percent to $34.06. The volume of Sonic shares traded was 218 percent higher than normal. Sonic reported better-than-expected results for its second quarter and raised its FY16 forecast.

surged 3.84 percent to $24.90. The volume of Tenaris shares traded was 153 percent higher than normal. Tenaris shares have dropped 14.72 percent over the past 52 weeks, while the S&P 500 index has declined 0.62 percent in the same period.