Stifel Nicolaus Downgrades Exelixis To Hold By: Benzinga via Benzinga September 02, 2014 at 08:24 AM EDT Analysts at Stifel Nicolaus downgraded Exelixis (NASDAQ: EXEL) from Buy to Hold and removed the target price of $9. Exelixis shares ... Read More >> Related Stocks: Exelixis Inc