X0306 4 2019-08-01 0 0001600438 GMS Inc. GMS 0001674921 Apolinsky Craig D GMS INC. 100 CRESCENT CENTRE PARKWAY, SUITE 800 TUCKER GA 30084 0 1 0 0 VP, GC and Corporate Secretary Common Stock 2019-08-01 4 M 0 3255 A 10901 D Common Stock 2019-08-01 4 F 0 951 21.90 D 9950 D Restricted Stock Units 2019-08-01 4 M 0 3255 0 D Common Stock 3255 6510 D Restricted Stock Units 2019-08-01 4 A 0 12442 0 A Common Stock 12442 12442 D Stock Option (Right to Buy) 21.90 2019-08-01 4 A 0 25138 0 A 2029-08-01 Common Stock 25138 25138 D Restricted stock units vested and converted into common stock on a one-for-one basis On August 1, 2018, the reporting person was granted 9,765 restricted stock units that vest in three equal annual installments beginning on the first anniversary of the grant date. 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 employment with the issuer through the applicable vesting date, these restricted stock units are scheduled to vest in equal installments on each of August 1, 2020, August 1, 2021 and August 1, 2022 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, 2020, August 1, 2021 and August 1, 2022. /s/ Craig D. Apolinsky 2019-08-05