SOUTH SAN FRANCISCO, Calif.--(BUSINESS WIRE)--Exelixis, Inc. (NASDAQ:EXEL) announced today that Charles Butler, the company’s vice president, investor relations and corporate communications, will present at Piper Jaffray’s 21st Annual Healthcare Conference at 1:30 p.m. EST / 10:30 a.m. PST on Tuesday December 1, 2009 in New York. Mr. Butler will discuss the company’s corporate strategy, financial outlook and development pipeline.
