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Jim Mazzola 858-704-8122 ir@halozyme.com Chris Burton 858-704-8352 ir@halozyme.com

Key Takeaway: HALOZYME THERAPEUTICS ANNOUNCES PUBLIC OFFERING OF COMMON STOCK SAN DIEGO, May 18, 2017 Halozyme Therapeutics, Inc. (NASDAQ: HALO) announced today that it has commenced an underwritten public offering of $100,000,000 of shares of its common stock. All of the shares in the offer

Full Press Release Details

HALOZYME THERAPEUTICS ANNOUNCES PUBLIC OFFERING OF COMMON STOCK
SAN DIEGO, May 18, 2017 Halozyme Therapeutics, Inc. (NASDAQ: HALO) announced today that it has commenced an underwritten
public offering of $100,000,000 of shares of its common stock. All of the shares in the offering are to be sold by Halozyme. Halozyme intends to grant the underwriters a 30-day option to purchase up to
$15,000,000 of additional shares. The offering is subject to market and other conditions, and there can be no assurance as to whether or when the offering may be completed, or as to the actual size or terms of the offering.
Wells Fargo Securities, LLC and Deutsche Bank Securities are acting as joint book-running managers for the offering.
Halozyme intends to use the net proceeds from this offering to fund continued development of its PEGPH20 oncology program and for other general corporate
An automatic shelf registration statement on Form S-3 relating to the public offering of the shares of
common stock described above was filed with the Securities and Exchange Commission (the SEC ) and is effective. A preliminary prospectus supplement relating to the offering has been filed with the SEC. Copies of the preliminary prospectus
supplement and accompanying prospectus may be obtained, when available, from Wells Fargo Securities, LLC, Attention: Equity Syndicate Department, 375 Park Avenue, New York, New York, 10152, or by telephone at (800)
326-5897 or email to cmclientsupport@wellsfargo.com; or Deutsche Bank Securities Inc., Attention: Prospectus Group, 60 Wall Street, New York, NY 10005, or by telephone at (800)
503-4611 or email to prospectus.cpdg@db.com.
This press release shall not constitute an offer to sell or the
solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or other jurisdiction in 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.
Halozyme Therapeutics is a biotechnology company focused on developing and commercializing novel oncology therapies that target the tumor microenvironment.
Safe Harbor Statement
All of the statements in this
press release that are not statements of historical facts constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Examples of such statements include future product development and regulatory
events and goals, our business intentions and financial estimates and results as well as the statements regarding the completion, timing and size of the offering. These statements are based upon management s current plans and expectations and
are subject to a number of risks and uncertainties which could cause actual results to differ materially from such statements. A discussion of the risks and uncertainties that can affect these statements is set forth in Halozyme s preliminary
prospectus supplement and the accompanying prospectus filed with the SEC on May 18, 2017, together with the information incorporated by reference, under the heading Risk Factors. Halozyme disclaims any intention or obligation to
revise or update any forward-looking statements, whether as a result of new information, future events, or otherwise.
Last updated: May 18, 2017