X0306 4 2018-10-02 0 0000757011 USG CORP USG 0001171774 LAVIN RICHARD P C/O USG CORPORATION 550 WEST ADAMS STREET CHICAGO IL 60661 1 0 0 0 Deferred Stock Units 2018-10-02 4 A 0 19.3816 43.375 A Common Stock 19.3816 1700.7339 D 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. Reflects the reinvestment of dividend equivalents in additional deferred stock units pursuant to the USG Corporation Deferred Compensation Program for Non-Employee Directors. Mean of the high and low sales prices of a share of common stock on October 2, 2018. /s/ Jonathan Dorfman, Attorney-In-Fact 2018-10-03