Morning Market Movers

Digital River DRIV shares climbed 46.55% to $25.47 after the company agreed to be acquired by investor group led by Siris Capital Group for $26.00 per share in cash. Vitae Pharmaceuticals VTAE shares rose 35.84% to $11.75 after the company reported positive top-line results from clinical trials in treatment and prevention of Alzheimer's disease as part of the collaboration with Boehringer Ingelheim. The Rubicon Project RUBI shares surged 17.17% to $11.94 on upbeat quarterly results. Gigamon GIMO shares jumped 16.31% to $13.48 after the company reported better-than-expected Q3 results. BJ's Restaurants BJRI surged 16.30% to $38.61 on stronger-than-expected Q3 earnings. PDF Solutions PDFS shares gained 12.79% to $13.40 after the company posted a profit in the third quarter. ResMed RMD surged 9.25% to $52.11 on quarterly results. KLA-Tencor KLAC rose 4.37% to $74.10 after the company reported better-than-expected Q1 results. The company announced a $16.50 per share special dividend and added 3.6 million shares to buyback. Lear LEA shares jumped 4.10% to $89.07 after the company reported upbeat earnings for the third quarter and raised its full-year core earnings forecast. Microsoft MSFT shares gained 3.01% to $46.38 after the company reported stronger-than-expected fiscal first-quarter results.