X0306 4 2017-02-23 0001544229 Engility Holdings, Inc. EGL 0001552753 Miiller Thomas O. C/O ENGILITY HOLDINGS, INC. 4803 STONECROFT BOULEVARD CHANTILLY VA 20151 1 SVP,Gen. Counsel. & Corp. Sec. Restricted Stock Units 2017-02-23 4 A 0 5879 0 A Common Stock 5879 5879 D Reflects the annual grant of Restricted Stock Units ("RSUs") that vest over three years from the date of grant - one-third (1/3) on the first anniversary, one-third (1/3) on the second anniversary, and one-third (1/3) 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). /s/ Jon Brooks as Attorney-in-Fact 2017-02-24