Celgene Corporation (NASDAQ: CELG) today announced its intention to offer, subject to market and other conditions, senior unsecured notes under a shelf registration statement on Form S-3 on file with the Securities and Exchange Commission. The interest rate, the maturity dates and other key terms of the offering are to be determined at the time of pricing. Celgene expects to use the net proceeds from the offering for general corporate purposes, which may include, without limitation, further development of Celgene’s clinical and pre-clinical programs, capital expenditures, general corporate development activities and meeting working capital needs. BofA Merrill Lynch, J.P. Morgan and Morgan Stanley are acting as joint book-running managers. A copy of the preliminary prospectus supplement and the accompanying base prospectus, which is filed as part of Celgene’s effective shelf registration statement on Form S-3 (File No. 333-169731), may be obtained from any of the joint book-running managers by calling BofA Merrill Lynch toll-free at: 1-800-294-1322, J.P. Morgan collect at 1-212-834-4533 or Morgan Stanley toll-free at 1-866-718-1649. An electronic copy of the preliminary prospectus supplement and the accompanying base prospectus may also be obtained at no charge at the Securities and Exchange Commission’s website at www.sec.gov. The notes are being offered pursuant to an effective registration statement on Form S-3 (File No. 333-169731) that Celgene previously filed with the Securities and Exchange Commission. This press release does not constitute an offer to sell or a solicitation of an offer to buy the notes described herein, nor shall there be any sale of these notes in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the laws of such jurisdiction. The offering of the notes will be made only by means of a prospectus supplement and the accompanying base prospectus.