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Alder BioPharmaceuticals Announces Closing of Public Offering of Common Stock and Exercise in Full of Option to Purchase Additional Shares

BOTHELL, Wash., April 12, 2016 (GLOBE NEWSWIRE) -- Alder BioPharmaceuticals, Inc. (NASDAQ:ALDR), a clinical-stage biopharmaceutical company, announced today the closing of its previously announced public offering of common stock, including 806,451 shares sold pursuant to the underwriters’ exercise in full of their option to purchase additional shares. Gross proceeds from the offering of an aggregate of 6,182,795 shares at a public offering price of $23.25 per share, before underwriting discounts and commissions and offering expenses, were approximately $143.8 million.

J.P. Morgan Securities LLC, Leerink Partners LLC and Wells Fargo Securities, LLC acted as joint book-running managers for the offering.

A shelf registration statement relating to the offered shares of common stock was filed with the Securities and Exchange Commission (SEC), and was effective on filing on June 2, 2015. A prospectus supplement and the accompanying prospectus relating to the offering have been filed with the SEC and are available on the SEC’s website, located at www.sec.gov. Copies of the prospectus supplement and the accompanying prospectus relating to this offering may be obtained from J.P. Morgan Securities LLC, Attention: Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, or by phone at 1-866-803-9204, or by email at prospectus-eq_fi@jpmchase.com; from Leerink Partners LLC, Attention: Syndicate Department, One Federal Street, 37th Floor, Boston, MA 02110, or by phone at 1-800-808-7525 ext. 6142, or by email at syndicate@leerink.com; or from Wells Fargo Securities, LLC, Attention: Equity Syndicate Department, 375 Park Avenue, New York, New York 10152, or by phone at 1-800-326-5897, or by email at cmclientsupport@wellsfargo.com.

This press release shall not constitute an offer to sell or a solicitation of an offer to buy these securities 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.

Media Contacts: David Schull or Lena Evans Russo Partners (212) 845-4271 (212) 845-4262 david.schull@russopartnersllc.com lena.evans@russopartnersllc.com Investor Relations Contacts: David Walsey Alder BioPharmaceuticals, Inc. (425) 408-8032 dwalsey@alderbio.com

Source:Alder Biopharmaceuticals, Inc.