144 0001577510 XXXXXXXX LIVE 0001201792 AMERICAN PUBLIC EDUCATION INC 001-33810 111 W CONGRESS STREET CHARLES TOWN WV 25414 (304) 724-3700 MacGibbon Craig S Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

6519 113113.40 17575065 05/22/2024 NASDAQ Common 03/04/2024 Restricted Stock Vesting Issuer N 1531 03/04/2024 Compensation Common 05/22/2024 Option Granted - 08/08/2022 Issuer N 2487 05/22/2024 Cash Common 02/07/2024 Restricted Stock Vesting Issuer N 2501 02/07/2024 Compensation N Craig S. Macgibbon

111 West Congress Street Charles Town WV 25414

Common 05/20/2024 1500 27605.00 05/22/2024 /s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Craig S. Macgibbon