Horizon Pharma plc Announces Proposed Public Offering of 12M Ordinary Shares

Horizon Pharma plc

, a specialty biopharmaceutical company focused on improving patients' lives by identifying, developing, acquiring and commercializing differentiated products that address unmet medical needs, today announced that it is offering to sell 12,000,000 of its ordinary shares in an underwritten public offering. Horizon Pharma plc also expects to grant the underwriters a 30-day option to purchase up to an additional 15 percent of the ordinary shares in the public offering. Citigroup, Jefferies LLC, Cowen and Company, LLC and Morgan Stanley & Co. LLC are acting as joint book-running managers for this offering. A registration statement relating to the shares described above was previously filed with and became effective by rule of the Securities and Exchange Commission ("SEC"). A preliminary prospectus supplement related to the offering will be filed with the SEC and will be available on the SEC's website located at http://www.sec.gov. Copies of the preliminary prospectus supplement and related prospectus, when available, may be obtained by contacting Citigroup, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, by email at prospectus@citi.com or by phone at 800-831-9146; Jefferies LLC, Equity Syndicate Prospectus Department, 520 Madison Avenue, 2nd Floor, New York, NY 10022, or by telephone at (877) 547-6340 or by email at Prospectus_Department@Jefferies.com; Cowen and Company, LLC, c/o Broadridge Financial Services, 1155 Long Island Avenue, Edgewood, NY, 11717, Attn: Prospectus Department or by calling (631) 274-2806; or Morgan Stanley & Co. LLC, 180 Varick Street, 2nd Floor, New York, NY 10014, Attention: Prospectus Department. 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, the shares in any state or other jurisdiction 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.