Novavax Prices Public Offering of Common Stock at $3.14 per Share

Novavax

today announced that it has priced an underwritten public offering of 27,693,000 shares of common stock at a price of $3.14 per share, the closing price of the stock on the previous day, for gross proceeds of approximately $87.0 million. Novavax expects to receive net proceeds, after deducting the underwriting discount, of approximately $82.6 million from the offering. In connection with this offering, Novavax granted the underwriters a 30-day overallotment option to purchase up to an additional 4,153,950 shares of its common stock. Novavax intends to use the net proceeds of the offering for general corporate purposes, the advancement of its clinical-stage vaccine candidates and its pre-clinical research programs. The offering is expected to close on or about September 27, 2013, subject to the satisfaction of customary closing conditions. Lazard Capital Markets LLC is acting as the sole book-running manager for the offering. Piper Jaffray & Co. and Wedbush PacGrow Life Sciences are acting as co-lead managers and Burrill Securities LLC is acting as co-manager for the offering. A preliminary prospectus supplement and the prospectus relating to the proposed offering are being filed with the SEC. This offering may be offered only by means of the prospectus, including the prospectus supplement, forming a part of the effective registration statement. This press release does not and 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 jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. When available, copies of the final prospectus supplement and the prospectus relating to the proposed offering can be obtained at the SEC's website http://www.sec.gov or from Lazard Capital Markets LLC at 30 Rockefeller Plaza, 60th Floor, New York, NY 10020 or via telephone at 800-542-0970. About Novavax Novavax, Inc.

is a clinical-stage biopharmaceutical company creating vaccines and vaccine adjuvants to address a broad range of infectious diseases worldwide. Using innovative proprietary recombinant protein nanoparticle technology, the company produces vaccine candidates to efficiently and effectively respond to both known and newly emergent diseases.