News Releases

Pfenex to Present at the 18th Annual Needham Healthcare Conference

SAN DIEGO, March 26, 2019 —Pfenex Inc. (NYSE American: PFNX) a clinical-stage development and licensing biotechnology company focused on leveraging its Pfēnex Expression Technology® to improve protein therapies for unmet patient needs, announced today that Susan Knudson, Chief Financial Officer, will be presenting at the 18th Annual Needham Healthcare Conference, taking place April 9-10th in New York City.

18th Annual Needham Healthcare Conference Presentation Details

Date:Tuesday, April 9
Time:8:40am Eastern Time

Interested parties can access the live audio webcast and archive for these presentations from the Investors Section of Pfenex's website at www.pfenex.com.

About Pfenex Inc.

We are a clinical-stage development and licensing biotechnology company focused on leveraging our Pfēnex Expression Technology® to develop and improve protein therapies for unmet patient needs. Using the patented Pfēnex Expression Technology platform, we have created an advanced pipeline of therapeutic equivalents, vaccines, biologics and biosimilars. The Company also uses its Pfēnex Expression Technology platform to produce CRM197, a diphtheria toxoid carrier protein used in prophylactic and therapeutic vaccines. Our lead product candidates are PF708, a therapeutic equivalent candidate to Forteo® (teriparatide) for the treatment of osteoporosis, and our novel anthrax vaccine candidates, Px563L and RPA563, funded through an advanced development contract with the U.S. government. In addition, we are developing hematology/oncology products, including PF743, a recombinant crisantaspase, and PF745, a recombinant crisantaspase with half-life extension technology, in collaboration with Jazz Pharmaceuticals.

Pfenex investors and others should note that we announce material information to the public about the Company through a variety of means, including our website (http://www.pfenex.com/), our investor relations website (http://pfenex.investorroom.com/), press releases, SEC filings, public conference calls, corporate Twitter account (https://twitter.com/pfenex), Facebook page (https://www.facebook.com/Pfenex-Inc-105908276167776/timeline/), and LinkedIn page (https://www.linkedin.com/company/pfenex-inc) in order to achieve broad, non-exclusionary distribution of information to the public and to comply with our disclosure obligations under Regulation FD. We encourage our investors and others to monitor and review the information we make public in these locations as such information could be deemed to be material information. Please note that this list may be updated from time to time.

Company Contact:

Susan A. Knudson
Chief Financial Officer
(858) 352-4324
sknudson@pfenex.com