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Ultragenyx Announces Closing of Public Offering of Common Stock and Exercise of Underwriters' Option to Purchase Additional Shares

NOVATO, Calif., July 21, 2015 (GLOBE NEWSWIRE) -- Ultragenyx Pharmaceutical Inc. (NASDAQ:RARE), a biopharmaceutical company focused on the development of novel products for rare and ultra-rare diseases, today announced the closing of its public offering of 2,530,000 shares of common stock at a price to the public of $120.00 per share, which includes the exercise in full by the underwriters of their option to purchase up to 330,000 additional shares of common stock. Ultragenyx estimates net proceeds from the offering to be approximately $286.6 million, after deducting underwriting discounts and commissions and estimated offering expenses.

Morgan Stanley, J.P. Morgan and Cowen and Company acted as joint book-running managers for the offering. JMP Securities and Wedbush PacGrow acted as co-managers for the offering.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission and became automatically effective on February 3, 2015. This offering was made solely by means of a written prospectus forming part of the effective registration statement. Copies of the final prospectus related to the offering may be obtained from Morgan Stanley & Co. LLC, Attention: Prospectus Department, 180 Varick Street, 2nd Floor, New York, NY 10014; J.P. Morgan Securities LLC, Attention: Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, by telephone at (866) 803-9204, or by emailing prospectus-eq_fi@jpmchase.com; or Cowen and Company, LLC, c/o Broadridge Financial Services, Attention: Prospectus Department, 1155 Long Island Avenue, Edgewood, NY 11717, Telephone: 631-274-2806, Fax: 631-254-7140.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall 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.

About Ultragenyx

Ultragenyx is a clinical-stage biopharmaceutical company committed to bringing to market novel products for the treatment of rare and ultra-rare diseases, with a focus on serious, debilitating genetic diseases. Founded in 2010, the company has rapidly built a diverse portfolio of product candidates with the potential to address diseases for which the unmet medical need is high, the biology for treatment is clear, and for which there are no approved therapies.

The company is led by a management team experienced in the development and commercialization of rare disease therapeutics. Ultragenyx's strategy is predicated upon time and cost-efficient drug development, with the goal of delivering safe and effective therapies to patients with the utmost urgency.

For more information on Ultragenyx, please visit the company's website at www.ultragenyx.com.

CONTACT: Ultragenyx Pharmaceutical Inc. Investors & Media Robert Anstey 844-758-7273

Source:Ultragenyx Pharmaceutical Inc.