Form 4 Filing for CSW INDUSTRIALS, INC.

This filing details transactions by Don Sullivan, EVP, Chief Strategy Officer of CSW INDUSTRIALS, INC. On April 2, 2026, Sullivan acquired 5,870 shares of Common Stock (transaction code M) with a post-transaction share count of 24,066. Additionally, 3,037 Performance Rights were disposed of (transaction code M), which were settled in Common Stock. These performance rights vested at 190.7% of the target award, based on the issuer's relative total shareholder return over a three-year performance cycle. Sullivan also disposed of 2,333 shares of Common Stock (transaction code F) at a price of $260.34 per share, resulting in a post-transaction holding of 21,733 shares. The filing also notes 1,875 shares of Common Stock held indirectly by an ESOP.