Benzinga's After Hours Gainers (GS, ARNA, SD)

Among the notable stocks that are gaining in the after hours trading session are Goldman Sachs GS, Arena Pharmaceuticals ARNA, and SandRidge Energy SD. Goldman Sachs GS has surged 5.15% to $145.22 in the after hours trading session after the Wall Street firm announced that it has settled a fraud case brought by the SEC for $550 million. Arena Pharmaceuticals ARNA has jumped 8.42% to $4.25 in late trading. During the regular session, the stock fell 8.41% to close at $3.92. Shares of SandRidge Energy SD have popped 5.72% to $6.84 in the after hours. The activity in the stock appears related to some favorable comments Jim Cramer made about SandRidge on Mad Money tonight.