X0306 4 2018-07-06 0001624794 CSW INDUSTRIALS, INC. CSWI 0001413614 Armes Joseph B 5420 LYNDON B JOHNSON FWY STE. 500 DALLAS TX 75240-1007 true true false false Chairman, President & CEO Common Stock 2018-07-06 4 S false 4250 53.8 D 67440 D Common Stock 9502 I JBA Family Partners, L.P. Option (right to buy) 25.52 2015-10-14 2023-07-15 Common Stock 29877 29877 D Option (right to buy) 25.23 2015-12-30 2024-08-28 Common Stock 85981 85981 D Performance Rights Common Stock 57320 57320 D The transaction reported was effected pursuant to a 10b5-1 trading plan established by the reporting person on December 8, 2017. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.65 to $54.00, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. Each performance right represents a contingent right to receive one share of the issuer's common stock at vesting. The performance rights vest at a rate between 0% and 100% during a three-year performance cycle beginning on October 1, 2015 and ending on March 31, 2018 based on the issuer's relative total shareholder return in comparison to the total shareholder return performance among a predetermined peer group over the performance cycle. The performance rights may be settled, at the issuer's discretion, in cash or shares of common stock. Each performance right represents a contingent right to receive one share of the issuer's common stock at vesting. The performance rights vest at a rate between 0% and 100% during a three-year performance cycle beginning on October 1, 2015 and ending on March 31, 2018 based on the issuer's relative total shareholder return in comparison to the total shareholder return performance among a predetermined peer group over the performance cycle. The performance rights may be settled, at the issuer's discretion, in cash or shares of common stock. /s/Luke E. Alverson, Attorney in Fact 2018-07-09