Clovis Oncology, Inc. (Nasdaq: CLVS) announced today that it has filed a registration statement on Form S-1 with the U.S. Securities and Exchange Commission (SEC) relating to a proposed underwritten public offering of $75 million of shares of its common stock. In addition, Clovis Oncology expects to grant the underwriters the option to purchase up to $11.25 million of additional shares to cover over-allotments. All shares of the common stock to be sold in the offering will be offered by Clovis Oncology. J. P. Morgan Securities LLC and Credit Suisse Securities (USA) LLC are acting as joint book-running managers for the offering, and Leerink Swann LLC is acting as co-manager for the offering. This offering shall be made only by means of a prospectus. Once available, a preliminary prospectus relating to these securities may be obtained from J. P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717 or by calling toll-free (866) 803-9204 or from Credit Suisse Securities (USA) LLC, Attention: Prospectus Department, One Madison Avenue, New York, NY 10010 or by calling toll-free (800) 221-1037 or emailing a request to firstname.lastname@example.org. A registration statement relating to these securities has been filed with the SEC but has not yet become effective. These securities may not be sold, nor may offers to buy be accepted, prior to the time the registration statement becomes effective. This press release shall not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. About Clovis Oncology Clovis Oncology, Inc. is a biopharmaceutical company focused on acquiring, developing and commercializing innovative anti-cancer agents in the U.S., Europe and additional international markets. Clovis Oncology targets development programs at specific subsets of cancer populations, and simultaneously develops diagnostic tools that direct a compound in development to the population that is most likely to benefit from its use. Clovis Oncology is headquartered in Boulder, Colorado, and has additional offices in San Francisco, California and Cambridge, UK.