Certain Class B Common Stock of Duolingo, Inc. are subject to a Lock-Up Agreement Ending on 24-JAN-2022. These Class B Common Stock will be under lockup for 181 days starting from 27-JUL-2021 to 24-JAN-2022.

Details:
The officers and directors and the holders of substantially all of shares of capital stock, including the selling stockholders, have agreed with the underwriters, subject to certain exceptions, not to dispose of or hedge any of their Class A common stock or securities convertible into or exchangeable for shares of Class A common stock during the period from the date of this prospectus continuing through the date 180 days after the date of this prospectus, except with the prior written consent of Goldman Sachs & Co. LLC.