X0206 3 2021-03-03 0 0001600438 GMS Inc. GMS 0001409751 Coliseum Capital Management, LLC 105 ROWAYTON AVE. ROWAYTON CT 06853 0 0 1 0 0001409585 Coliseum Capital, LLC 105 ROWAYTON AVE. ROWAYTON CT 06853 0 0 1 0 0001356974 COLISEUM CAPITAL PARTNERS, L.P. 105 ROWAYTON AVE. ROWAYTON CT 06853 0 0 1 0 0001807345 Coliseum Capital Co-Invest III, L.P. 105 ROWAYTON AVE. ROWAYTON CT 06853 0 0 1 0 0001454123 Gray Adam 105 ROWAYTON AVE. ROWAYTON CT 06853 0 0 1 0 0001430708 Shackelton Christopher S 105 ROWAYTON AVE. ROWAYTON CT 06853 0 0 1 0 Common Stock, par value $0.01 per share 4270393 I See footnotes These securities are directly held as follows: (a) 3,025,745 shares of common stock, par value $0.01 per share ("Common Stock"), by Coliseum Capital Partners, L.P. ("CCP"), an investment limited partnership of which Coliseum Capital, LLC, a Delaware limited liability company ("CC"), is general partner and for which Coliseum Capital Management, LLC, a Delaware limited liability company ("CCM"), serves as investment adviser; (b) 989,448 shares of Common Stock by a separate account investment advisory client of CCM (the "Separate Account"); and (c) 255,200 shares of Common Stock by Coliseum Capital Co-Invest III, L.P. ("CCC III"), an investment limited partnership for which CCM serves as investment advisor. Christopher S. Shackelton ("Shackelton") and Adam Gray ("Gray") are managers of and have an ownership interest in each of CCM and CC. Each of Shackelton, Gray, CCP, the Separate Account, CC, CCC III and CCM disclaims beneficial ownership of these securities except to the extent of that person's pecuniary interest therein. Coliseum Capital Management, LLC, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact 2021-03-05 Coliseum Capital, LLC, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact 2021-03-05 Coliseum Capital Partners, L.P., By: Coliseum Capital, LLC, its General Partner, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact 2021-03-05 Coliseum Capital Co-Invest III, L.P., By: Coliseum Capital, LLC, General Partner, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact 2021-03-05 Adam Gray, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact 2021-03-05 Christopher Shackelton, By: /s/ Chivonne Cassar, Chivonne Cassar, Attorney-in-fact 2021-03-05