 TUCKER, Ga.--BUSINESS WIRE--GMS Inc. NYSE: GMS, a leading North American specialty distributor of interior building products, today reported financial results for the fourth quarter and fiscal year ended April 30, 2021. Fourth Quarter Fiscal 2021 Highlights Comparisons are to the fourth quarter of fiscal 2020, except where noted. Net sales of 932.2 million increased 20.9; organic net sales increased 17.1. On a per day basis, net sales increased 19.1 and organic net sales increased 15. 