Form 4 Filing for Scott A. Cottrill

Scott A. Cottrill, EVP, CFO, and Secretary of ADVANCED DRAINAGE SYSTEMS, INC., reported transactions on May 26, 2026. He acquired 2,503 shares of Common Stock directly, bringing his post-transaction holdings to 110,511 shares. Additionally, Cottrill was granted options to purchase 5,573 shares of Common Stock, with an exercise price of $138.09 per share. These options vest in three equal annual installments starting May 26, 2027, contingent upon continued employment. The filing also notes 89 shares acquired under the Employee Stock Purchase Plan and 17,469.0329 shares held through the KSOP plan, indicated as indirect ownership.