X0306 4 2022-08-08 0001201792 AMERICAN PUBLIC EDUCATION INC APEI 0001577510 MacGibbon Craig S 111 WEST CONGRESS STREET CHARLES TOWN WV 25414 0 1 0 0 EVP, Chief Information Officer Common Stock, par value $.01 2022-08-08 4 A 0 13073 0 A 13073 D Employee Stock Option (right to buy) 15.67 2022-08-08 4 A 0 10460 0 A 2032-08-07 Common Stock 10460 10460 D Restricted Stock Units ("RSUs") granted pursuant to the American Public Education, Inc. 2017 Omnibus Incentive Plan, as amended (the "2017 Plan"). The RSUs vest in three equal annual installments commencing on August 8, 2023. Granted pursuant to the 2017 Plan. The options vest in three equal annual installments commencing on August 8, 2023. /s/ Richard W. Sunderland, Jr., Attorney-in-Fact 2022-08-11