Investors
Investor Resources
Transfer Agent and Registrar
American Stock Transfer & Trust Company
6201 15th Avenue
Brooklyn, NY 11219
Phone: 800-937-5449
Independent Registered Public Accounting Firm
KPMG LLC
Philadelphia, PA
Stock Listing
The company’s common stock trades on NYSE American under the symbol PTN.
For Institutional Investors and Media
Paul Arndt, MBA
LifeSci Advisors, LLC
Email: Paul@LifeSciAdvisors.com
Phone: 646-597-6992