Zogenix announces underwriters partial exercise of over-allotment option in initial public offering

Zogenix, Inc. ("Zogenix") (Nasdaq:ZGNX) announced today that the underwriters of its recently completed initial public offering of common stock have partially exercised their option to purchase shares of common stock from Zogenix to cover over-allotments. The sale of additional shares is expected to close on December 27, 2010.

Including proceeds from the sale of the additional shares, the gross proceeds to Zogenix from the initial public offering are expected to be $57.7 million.

Wells Fargo Securities, LLC and Leerink Swann LLC acted as joint book-running managers for the offering, and Oppenheimer & Co. and Stifel Nicolaus Weisel acted as co-managers for the offering. A registration statement relating to these securities was declared effective by the SEC on November 22, 2010. This offering is being made only by means of a prospectus, copies of which may be obtained from Wells Fargo Securities, LLC, Attention: Equity Syndicate Department, 375 Park Avenue, New York, New York 10152, or by calling toll-free 800-326-5897 or emailing a request to [email protected] and from Leerink Swann LLC, Attention: Syndicate Department, One Federal Street, 37th Floor, Boston, Massachusetts 02110, or by calling toll-free 800-808-7525, ext. 4814, or emailing a request to [email protected].