Press Release

Exelixis Announces May 10th Webcast of Presentation at the Bank of America Merrill Lynch Health Care Conference

May 5, 2011

SOUTH SAN FRANCISCO, Calif., May 05, 2011 (BUSINESS WIRE) -- Exelixis, Inc. (NASDAQ:EXEL) announced today that Michael Morrissey, Ph.D., the company's president and chief executive officer, will present at the upcoming Bank of America Merrill Lynch Health Care Conference at 11:40 a.m. EDT / 8:40 a.m. PDT on Tuesday, May 10, 2011 in Las Vegas. During the presentation, Dr. Morrissey will review the most recent publicly available data for cabozantinib in castration-resistant prostate cancer (CRPC) and discuss the pivotal trial plans and regulatory strategy for the compound in CRPC. He will also discuss the company's 2011 financial outlook and provide a general business update.

The presentation will be webcast and may be accessed in the Event Calendar page under Investors and Media at www.exelixis.com.

About Exelixis

Exelixis, Inc. is a biotechnology company committed to developing small molecule therapeutics for the treatment of cancer. Exelixis is focusing its resources and development efforts exclusively on cabozantinib, its most advanced solely-owned product candidate, in order to maximize the therapeutic and commercial potential of this compound. Exelixis believes cabozantinib has the potential to be a high-quality, differentiated pharmaceutical product that can make a meaningful difference in the lives of patients. Exelixis has also established a portfolio of other novel compounds that it believes have the potential to address serious unmet medical needs. For more information, please visit the company's web site at www.exelixis.com.

SOURCE: Exelixis, Inc.

Exelixis, Inc.
Charles Butler, 650-837-7277
Vice President, Investor Relations and Corporate Communications
cbutler@exelixis.com