X0306 4 2020-08-01 0 0001600438 GMS Inc. GMS 0001399901 DEAKIN SCOTT M GMS INC. 100 CRESCENT CENTRE PARKWAY, SUITE 800 TUCKER GA 30084 0 1 0 0 VP, Chief Financial Officer Restricted Stock Units 2020-08-01 4 A 0 12804 0 A Common Stock 12804 12804 D Stock Option (Right to Buy) 23.43 2020-08-01 4 A 0 26978 0 A 2030-08-01 Common Stock 26978 26978 D Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. Subject to the reporting person's continued service with the issuer through the applicable vesting date, these restricted stock units are scheduled to vest in equal installments on each of August 1, 2021, August 1, 2022 and August 1, 2023 and will be settled, with respect to vested Restricted Stock Units, in shares of the issuer's common stock no later than 30 days after each applicable vesting date. Subject to the reporting person's continued employment with the issuer through the applicable vesting date, these options are scheduled to vest in equal installments on each of August 1, 2021, August 1, 2022 and August 1, 2023. /s/ Craig D. Apolinsky, Attorney-in-Fact for Scott M. Deakin 2020-08-04