Certain Common Stock of Allakos Inc. are subject to a Lock-Up Agreement Ending on 15-JAN-2019. These Common Stock will be under lockup for 181 days starting from 18-JUL-2018 to 15-JAN-2019.

Details:
The officers, directors and the holders of substantially all of capital stock, options and warrants have agreed not to dispose of or hedge any of their common stock or securities convertible into or exchangeable for shares of common stock for the period of 180 days without prior consent of Goldman Sachs & Co. LLC and Jefferies LLC.