Certain Class A Common Stock of Spirit AeroSystems Holdings, Inc. are subject to a Lock-Up Agreement Ending on 9-JAN-2024. These Class A Common Stock will be under lockup for 61 days starting from 9-NOV-2023 to 9-JAN-2024.

Details:
The Company's directors and executive officers have agreed that without the prior written consent of the underwriters, they will not, offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend or otherwise transfer or dispose of, directly or indirectly, any shares of common stock or any securities convertible into or exercisable or exchangeable for shares of common stock during the period ending 60 days after the date of this prospectus supplement.