Certain Common Stock of Protagonist Therapeutics, Inc. are subject to a Lock-Up Agreement Ending on 9-JAN-2018. These Common Stock will be under lockup for 90 days starting from 11-OCT-2017 to 9-JAN-2018. Details: The directors and executive officers have agreed that they will not sell or transfer any common stock or securities convertible into or exchangeable or exercisable for common stock, for 90 days after the date of the underwriting agreement without first obtaining the written consent of Leerink Partners LLC on behalf of the underwriters.