Shares of Exelixis, Inc. (NASDAQ:EXEL – Get Free Report) gapped down prior to trading on Wednesday after the company announced weaker than expected quarterly earnings. The stock had previously closed at $23.46, but opened at $21.64. Exelixis shares last traded at $21.17, with a volume of 911,024 shares trading hands. The biotechnology company reported $0.12 […]