Alder BioPharmaceuticals® to Present at Two Upcoming February Investor Conferences

BOTHELL, Wash., Feb. 08, 2018 -- Alder BioPharmaceuticals, Inc. (NASDAQ:ALDR), a biopharmaceutical company focused on developing novel therapeutic antibodies for the treatment of migraine, today announced that it will webcast a business overview and update by Randall C. Schatzman, Ph.D., president and chief executive officer at each of the following upcoming healthcare conferences:

• Leerink Partners 7^th Annual Global Healthcare Conference at 10:00 a.m. ET on Thursday, February 15, 2018 in New York, NY.
   
• RBC Capital Markets 2018 Healthcare Conference at 9:30 a.m. ET on Wednesday, February 21, 2018 in New York, NY.

A live audio webcast of each event can be accessed on the Events & Presentations page of the Investors section of Alder's website at http://www.alderbio.com, or by following the link below in your web browser. An archived replay of the webcast will be available on Alder's website for at least 30 days after the live event concludes.

• Leerink Link: http://wsw.com/webcast/leerink30/aldr/

• RBC Link: https://www.veracast.com/webcasts/rbc/healthcare2018/79104202338.cfm

About Alder BioPharmaceuticals, Inc.
Alder BioPharmaceuticals, Inc., is a clinical-stage biopharmaceutical company committed to transforming the treatment paradigm for patients with migraine and other serious neurological or inflammatory conditions. Leveraging its pioneering monoclonal antibody technologies, Alder discovers and develops novel therapeutic antibodies designed to deliver highly differentiated, best-in-class clinical profiles. Alder's lead pivotal-stage product candidate, eptinezumab, is being evaluated as potentially the first-to-market migraine prevention infusion therapy. Eptinezumab is a monoclonal antibody (mAb) inhibiting calcitonin gene-related peptide (CGRP), which is believed to play a key role in mediating and initiating migraine. Alder is additionally evaluating ALD1910, a preclinical product candidate also in development as a migraine prevention therapy. ALD1910 is a monoclonal antibody that inhibits pituitary adenylate cyclase-activating polypeptide-38 (PACAP-38), another protein that is active in mediating the initiation of migraine. Clazakizumab, Alder's third program, is a monoclonal antibody candidate that inhibits interleukin-6 and is licensed to Vitaeris, Inc. For more information, please visit http://www.alderbio.com.

Media Contact:                                                                
Ashley Cadle                                                                       
TogoRun                                                                             
310-463-0143 
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Investor Relations Contact:                                        
Michael Schaffzin
Stern Investor Relations, Inc.
212-362-1200
[email protected]