Certain Common Stock of Aptevo Therapeutics Inc. are subject to a Lock-Up Agreement Ending on 3-NOV-2023. These Common Stock will be under lockup for 91 days starting from 4-AUG-2023 to 3-NOV-2023.

Details:
The Company directors and executive officers have agreed to enter lock-up agreements. Under these agreements, these individuals have agreed, subject to specified exceptions, not to sell or transfer any shares of Common Stock or securities convertible into, or exchangeable or exercisable for, shares of Common Stock during a period ending 90 days after the date of this prospectus, without first obtaining the written consent of the Placement Agent, subject to certain exceptions.