Form 4 Filing for Brian W. King

Brian W. King, Executive Vice President of ADVANCED DRAINAGE SYSTEMS, INC., reported transactions on May 19-20, 2026. King disposed of 116 shares of Common Stock at $131.59 per share and 101 shares at $136.83 per share, with shares withheld for tax obligations. Additionally, King acquired 4491 shares of Common Stock at $0.0 per share, reflecting a grant of performance-based units. Following these transactions, King holds 20966 shares directly. King also has indirect ownership of 1778.1777 shares by KSOP, representing current allocations.