Hyperion Therapeutics Announces Pricing of 5M Share Initial Public Offering at $10.00

Hyperion Therapeutics, Inc.

announced today the pricing of its initial public offering of 5,000,000 shares of its common stock at $10.00 per share, before underwriting discounts and commissions. All of the common stock is being offered by Hyperion. In addition, the underwriters have a 30-day option to purchase up to an additional 750,000 shares of common stock from Hyperion to cover over-allotments, if any. Shares of Hyperion's common stock will trade on the NASDAQ Global Select Market under the symbol "HPTX" beginning on July 26, 2012. The offering is expected to close on July 31, 2012, subject to customary closing conditions.