WALTHAM, Mass., Nov. 14, 2016 (GLOBE NEWSWIRE) -- TESARO, Inc. (NASDAQ:TSRO) announced today that it has commenced an underwritten public offering of 1,750,000 shares of its common stock. In connection with this offering, TESARO plans to grant the underwriters an option to purchase up to an additional 262,000 shares of its common stock. Citigroup, Leerink Partners, Credit Suisse and Wells Fargo Securities are acting as bookrunners for the offering. The offering is subject to market conditions, and there can be no assurance as to whether or when the offering may be completed, or as to the actual size or terms of the offering. The offering will be made by TESARO pursuant to its automatic shelf registration statement on Form S-3 filed with the Securities and Exchange Commission (SEC) on June 30, 2016. A preliminary prospectus supplement and related prospectus related to the offering have been filed with the SEC and are available on the SEC's website located at http://www.sec.gov. Copies of the preliminary prospectus supplement and related prospectus relating to this offering may be obtained from Citigroup, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, via telephone at 1-800-831-9146 or from Leerink Partners LLC, Attention: Syndicate Department, One Federal Street, 37th Floor, Boston, MA, 02110, via telephone at 1-800-808-7525 (ext. 6142) or email at email@example.com. This press release shall not constitute an offer to sell, or the solicitation of an offer to buy, nor will there be any sale of, these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of such state or other jurisdiction.