X0306 4 2022-01-31 0001201792 AMERICAN PUBLIC EDUCATION INC APEI 0001789284 Selden Angela K. 111 WEST CONGRESS STREET CHARLES TOWN WV 25414 1 1 0 0 President and CEO Common Stock, par value $.01 2022-01-31 4 A 0 54402 0 A 195426 D Restricted Stock Units granted pursuant to the American Public Education, Inc. 2017 Omnibus Incentive Plan. Award vests in three equal annual installments, with one third vesting on January 31, 2023, one third vesting on January 31, 2024, and one third vesting on January 31, 2025. /s/ Richard W. Sunderland, Jr., Attorney-in-Fact 2022-02-02