Mid-Day Market Movers

Vringo Inc

climbed 45.93% to $1.97 at 12:15 pm. VRNG shares have dropped 38.07% over the past 52 weeks, while the S&P 500 index has gained 1.30% in the same period. Response Genetics Inc

shares surged 31.36% to $1.55. RGDX entered into purchase agreements with investors to raise more than $7.8 million from the private placement. MediciNova Inc

shares gained 31.75% to $2.49. MNOV received a Notice of Patent Allowance from the US Patent and Trademark Office for the treatment of progressive forms of multiple sclerosis. Central European Distribution Corp

jumped 25.56% to $5.60. Russian Standard Group plans to lift its stake in CEDC.