X0306 4 2018-03-31 0 0000757011 USG CORP USG 0001046086 LEER STEVEN F C/O USG CORPORATION 550 WEST ADAMS STREET CHICAGO IL 60661 1 0 0 0 Deferred Stock Units 2018-03-31 4 A 0 65.959 40.745 A Common Stock 65.959 92786.9228 D Deferral of a portion of the reporting person's compensation for service as a director pursuant to the USG Corporation Deferred Compensation Program for Non-Employee Directors (the "Program"). Each deferred stock unit represents the right to receive the value of one share of common stock. The deferred stock units become payable in shares of common stock following termination of service as a director. Mean of the high and low sales prices of a share of common stock on March 29, 2018. /s/ Jennifer T. Meid, Attorney-In-Fact 2018-04-02