Shares of Regeneron Pharmaceuticals (REGN -9.1%) sink after double downgrades: to Underperform...

|About: Regeneron Pharmaceuticals, ... (REGN)|By:, SA News Editor

Shares of Regeneron Pharmaceuticals (REGN -9.1%) sink after double downgrades: to Underperform from Neutral at Bank of America and to Market Perform from Outperform at Leerink Swann, which cited the need for improved visibility on the launch of its blindness drug Eylea.