144 0001663176 XXXXXXXX LIVE 0001624794 CSW INDUSTRIALS, INC. 001-37454 5420 LYNDON B. JOHNSON FREEWAY SUITE 500 DALLAS TX 75240 (214) 884-3777 Sullivan Don Officer Common stock Merrill Lynch

2100 Ross Ave Suite 1000 Dallas TX 75201

17973 4942575.00 16820000 12/16/2024 NYSE CSW Industrials 10/01/2024 Employment related Don Sullivan N 1965 12/17/2024 Cash CSW Industrials 04/01/2024 Employment related Don Sullivan N 3729 12/17/2024 Cash CSW Industrials 10/01/2023 Employment related Don Sullivan N 2222 12/17/2024 Cash CSW Industrials 04/01/2023 Employment related Don Sullivan N 4281 12/16/2024 Cash CSW Industrials 10/01/2022 Employment related Don Sullivan N 2067 12/17/2024 Cash CSW Industrials 04/01/2022 Employment related Don Sullivan N 3709 12/17/2024 Cash Y This if for Don Sullivan's 10b51 plan adopted 9/13/2024 12/16/2024 09/13/2024 Don Sullivan