Insider Transaction Report for ADVANCED DRAINAGE SYSTEMS, INC.

This filing details insider transactions for ADVANCED DRAINAGE SYSTEMS, INC. (WMS) by Coyle Patrick M. Jr, Executive Vice President, Supply Chain Management. On May 19, 2026, 91 shares of Common Stock were disposed of (transaction code F, footnote F1) at a price of $131.59 per share, resulting in 5756 shares remaining. On May 20, 2026, an additional 64 shares were disposed of (transaction code F, footnote F1) at $136.83 per share, leaving 5692 shares. Also on May 20, 2026, 3233 shares were acquired (transaction code A, footnote F2) at no cost, bringing the total to 8925 shares. The filing also notes 4310.908 shares held indirectly through the KSOP plan (footnote F3).