X0508 4 2025-03-03 0001201792 AMERICAN PUBLIC EDUCATION INC APEI 0001944588 Fernandes Nuno S. 111 WEST CONGRESS STREET CHARLES TOWN WV 25414 0 1 0 0 President, APUS 0 Common Stock, par value $.01 2025-03-03 4 A 0 25463 0 A 94798 D Common Stock, par value $.01 2025-03-03 4 F 0 2067 20.39 D 92731 D Performance-based restricted stock unit ("PSU") award pursuant to the American Public Education, Inc. 2017 Omnibus Incentive Plan. Award reflects a level of achievement of adjusted earnings per share and revenue performance measures for the issuer's fiscal year ended December 31, 2024. Award vests in three approximately equal installments on March 3, 2025, January 31, 2026, and January 31, 2027. The issuer withheld shares of Common Stock from the reporting person to pay the tax withholding obligations related to the vesting of PSUs. /s/ Richard W. Sunderland, Jr., Attorney-in-Fact 2025-03-05