X0407 4 2023-03-21 0001201792 AMERICAN PUBLIC EDUCATION INC APEI 0001604046 Robinson William G Jr 111 WEST CONGRESS STREET CHARLES TOWN WV 25414 1 0 0 0 0 Common Stock, par value $.01 2023-03-21 4 P 0 6250 4.06 A 26847 D /s/ Richard W. Sunderland, Jr., Attorney-in-Fact 2023-03-22