Morning Market Gainers

shares climbed 41.23 percent to $2.74 after the company reported positive top-line results from Human Abuse Potential Study with REMOXY.

shares jumped 20.63 percent to $119.80 following Monday's Wall Street Journal report that the company is near a $13 billion deal.

climbed 17.75 percent to $50.15 after the company agreed to be acquired by

for $50 per share, or $4.4 billion.

shares rose 17.35 percent to $8.25. magicJack reported Q1 adjusted earnings of $0.31 per share on sales of $25.5 million.

shares climbed 15.03 percent to $4.32 following the announcement of Germany's Merck receiving the FDA fast track designation for Evofosfamide for the treatment of advanced pancreatic cancer.

shares gained 13.97 percent to $46.50. Providence Service reported Q1 adjusted earnings of $0.77 per share on sales of $505.8 million. The company also announced that CEO Warren Rustand will leave the company.

shares jumped 12.63 percent to $11.59. Tokai Pharma reported a Q1 loss of $0.59 per share. Oppenheimer initiated coverage on Tokai Pharmaceuticals with a Outperform rating.

shares surged 9.35 percent to $8.42 after the company reported upbeat Q1 results.

shares rose 4.91 percent to $4.70. Anthera Pharmaceuticals reported a Q1 loss of $0.28 per share. Citigroup upgraded Anthera Pharmaceuticals from Sell to Neutral.

shares surged 3.96 percent to $6.30. Armistice Capital has sent a letter to Spectrum Pharmaceuticals Chairman, CEO, Board outlining plan to improve the company's performance.