X0306 4 2017-05-02 0001544229 Engility Holdings, Inc. EGL 0001672832 Balaguer Susan M. C/O ENGILITY HOLDINGS, INC. 4803 STONECROFT BOULEVARD CHANTILLY VA 20151 1 SVP, Chief Human Resources Common Stock 2017-05-02 4 M 0 1679 A 1679 D Common Stock 2017-05-02 4 F 0 645 28.45 D 1034 D Restricted Stock Units 2017-05-02 4 M 0 1679 0 D Common Stock 1679 5040 D Reflects the annual grant of Restricted Stock Units ("RSUs") that vest over three years from the date of grant - 25% on the first anniversary, 25% on the second anniversary, and 50% on the third anniversary. Vested RSUs are settled in shares of common stock of Engility Holdings, Inc. (the "Issuer") or cash, which determination will be made at the sole discretion of the Issuer's Compensation Committee (or a subcommittee thereof). Reflects shares withheld to cover the payment of taxes upon the vesting of restricted stock units. /s/ Jon Brooks as Attorney-in-Fact 2017-05-03