X0306 4 2015-03-04 0 0000868857 AECOM ACM 0001477553 Frist William H. C/O AECOM 1999 AVENUE OF THE STARS, SUITE 2600 LOS ANGELES CA 90067 1 0 0 0 Common Stock 2015-03-04 4 M 0 2164 A 28460 D Restricted Stock Units 2015-03-04 4 M 0 2164 D Common Stock 2164 0 D Restricted Stock Units 2015-03-04 4 A 0 4327 0 A Common Stock 4327 4327 D Each restricted stock unit represented a contingent right to receive one share of AECOM common stock. On March 4, 2015, 2,164 of the reporting person's restricted stock units vested and were settled for an equal number of shares of AECOM common stock. Each restricted stock unit represents a contingent right to receive one share of AECOM common stock. The restricted stock units vest on the earlier of March 4, 2016 or the date of the Corporation's 2016 Annual Meeting of Stockholders. /s/ Preston Hopson, Attorney-in-Fact for William H. Frist 2015-03-06