X0609 4 2026-08-03 0001201792 AMERICAN PUBLIC EDUCATION INC APEI 0001603516 Kenigsberg James false 111 WEST CONGRESS STREET CHARLES TOWN WV 25414 0 1 0 0 Chief Inno & Tech Officer 0 Common Stock, par value $.01 2026-08-03 4 A 0 7573 0 A 48175 D Common Stock, par value $.01 2026-08-04 4 F 0 2133 53.42 D 46042 D The restricted stock units ("RSUs") were granted pursuant to the American Public Education, Inc. 2017 Omnibus Incentive Plan, as amended. The RSUs vest in three equal annual installments commencing on the first anniversary of the grant date. The issuer withheld shares of Common Stock from the reporting person to pay the tax withholding obligations related to the vesting of RSUs. /s/ Edward Codispoti, Attorney-in-Fact 2026-08-05