X0306 4 2017-01-20 0001201792 AMERICAN PUBLIC EDUCATION INC APEI 0001220428 SUNDERLAND RICHARD W JR 111 WEST CONGRESS STREET CHARLES TOWN WV 25414 0 1 0 0 EVP, Chief Financial Officer Common Stock, par value $.01 2017-01-20 4 F 0 986 24.45 D 23780 D Common Stock, par value $.01 2017-01-20 4 F 0 467 24.45 D 23313 D The issuer withheld shares of Common Stock from the reporting person to pay the tax withholding obligations related to the vesting of restricted shares of Common Stock held by the reporting person. The issuer withheld shares of Common Stock from the reporting person to pay the tax withholding obligations related to the vesting of equity awards held by the reporting person. /s/ Richard W. Sunderland, Jr 2017-01-24