Synageva BioPharma Corp. (“Synageva”) (NASDAQ:GEVA), a clinical stage biopharmaceutical company developing therapeutic products for rare disorders, today announced the closing of a $115 million underwritten public offering of 2,792,200 shares of common stock, including 364,200 shares of common stock which were issued pursuant to the exercise of the underwriters’ over-allotment option, at a price of $41.20 per share. Morgan Stanley and J.P. Morgan acted as joint book-running managers in the offering, and Cowen and Company, Leerink Swann, Canaccord Genuity Inc. and Wedbush PacGrow Life Sciences acted as co-managers in the offering. The securities described above were offered by Synageva pursuant to a Form S-3 shelf registration statement (including a base prospectus) previously filed with, and declared effective by, the Securities and Exchange Commission (“SEC”). The final prospectus supplement and accompanying prospectus related to this offering is available for free by visiting EDGAR on the SEC’s website located at www.sec.gov. Copies of the final prospectus supplement and accompanying prospectus may also be obtained from the offices of Morgan Stanley & Co. LLC, 180 Varick Street, 2nd Floor, New York, New York 10014, Attn: Prospectus Department, by calling toll-free (866) 718-1649 or by email at firstname.lastname@example.org, or from the offices of J.P. Morgan Securities LLC via Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717 or by calling toll-free (866) 803-9204. This news release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, 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 any such state or other jurisdiction. About Synageva’s Lead Program SBC-102 is a recombinant form of the human LAL enzyme being developed as an enzyme replacement therapy for Lysosomal Acid Lipase (LAL) Deficiency, a lysosomal storage disorder (LSD). SBC-102 is currently being evaluated in global clinical trials and has been granted orphan designations by the U.S. Food and Drug Administration (“FDA”), the European Medicines Agency, and the Swiss health authority, Swissmedic. Additionally, SBC-102 received fast track designation by the FDA. About LAL Deficiency Lysosomal Acid Lipase Deficiency is a rare, autosomal recessive lysosomal storage disorder (LSD) that is caused by a marked decrease in LAL enzyme activity. Late onset LAL Deficiency, sometimes called Cholesteryl Ester Storage Disease (CESD), affects both children and adults. In these patients, the buildup of fatty material in the liver, spleen and blood vessel walls leads to complications resulting in significant morbidity and mortality. Early onset LAL Deficiency, sometimes called Wolman Disease, affects infants in the first year of life and is characterized by growth failure, malabsorption, steatorrhea and hepatomegaly and is rapidly fatal, usually within the first year of life. About Synageva BioPharma Corp. Synageva is a clinical stage biopharmaceutical company focused on the discovery, development, and commercialization of therapeutic products for patients with life-threatening rare diseases and unmet medical need. Synageva has several protein therapeutics in its pipeline. The company has assembled a team with a proven record of bringing orphan therapies to patients. Further information regarding Synageva BioPharma Corp. is available at www.synageva.com. Forward-Looking Statements This news release and oral statements made from time to time by Synageva representatives in respect of the same subject matter may contain “forward-looking statements” under the provisions of the Private Securities Litigation Reform Act of 1995. Such statements can be identified by introductory words such as “expects,” “plans,” “intends,” “believes,” “will,” “estimates,” “forecasts,” “projects,” or words of similar meaning, and by the fact that they do not relate strictly to historical or current facts. Many factors may cause actual results to differ materially from forward-looking statements, including inaccurate assumptions and a broad variety of risks and uncertainties, some of which are known, including those identified under the heading “Risk Factors” in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (the “SEC”) on March 22, 2012 and other filings the Company periodically makes with the SEC, and others of which are not. Synageva cannot be sure when or if it will be permitted by regulatory agencies to undertake additional clinical trials or to commence any particular phase of clinical trials or how quickly patient enrollment in clinical trials will occur. In addition, early clinical results are not necessary predictive of results that may be achieved from subsequent clinical trials. Because of this, statements regarding the expected timing of clinical trials or ultimate regulatory approval cannot be regarded as actual predictions of when Synageva will obtain regulatory approval for any phase of clinical trials or when it will obtain ultimate regulatory approval by a particular regulatory agency. Our future financial results may differ from those currently anticipated due to a number of factors, including unanticipated costs in our research and development programs, fluctuations in royalty revenues and unplanned costs associated with maintaining and enforcing patents and other patent-related costs. No forward-looking statement is a guarantee of future results or events, and one should avoid placing undue reliance on such statements. Synageva undertakes no obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise.