BioMarin Announces Exercise in Full of Underwriters' Option to Purchase Additional 0.599% Senior Subordinated Convertible Notes Due 2024

SAN RAFAEL, Calif., Aug. 23, 2017

BofA Merrill Lynch acted as book-running manager for this offering. Goldman Sachs & Co. LLC and J.P. Morgan acted as joint book-runners.

The offering of the Notes has been registered under the Securities Act of 1933, as amended. For additional information relating to the offering, BioMarin refers you to its Registration Statement on Form S-3, which BioMarin filed with the Securities and Exchange Commission (the SEC) on August 8, 2016 and which became immediately effective on the same date. A prospectus supplement and accompanying prospectus relating to the offering have been filed with the SEC and are available on the SEC's website at http://www.sec.gov.

Copies of the prospectus supplement and the accompanying prospectus relating to the offering may also be obtained from BofA Merrill Lynch, NC1-004-03-43, 200 North College Street, 3rd floor, Charlotte NC  28255-0001, Attn: Prospectus Department, Email: dg.prospectus_requests@baml.com; or from Goldman Sachs & Co. LLC, Attn: Prospectus Department, 200 West Street, New York, NY 10282, telephone: (866) 471-2526, facsimile: 212-902-9316, e-mail: prospectus-ny@ny.email.gs.com; or from J.P. Morgan Securities LLC, Attention: Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, or by telephone at (866) 803-9204, or by email at prospectus-eq_fi@jpmchase.com.

This press release shall not constitute an offer to sell or a solicitation of an offer to buy the Notes or any other securities, and will not constitute an offer, solicitation or sale in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful. The offering of these securities will be made only by means of the prospectus supplement and the accompanying prospectus.

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