| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| PEREZ DE LA MESA MANUEL J | Director | C/O ADVANCED DRAINAGE SYSTEMS, INC., 4640 TRUEMAN BOULEVARD, HILLIARD | /s/ Manuel J. Perez de la Mesa, by Scott A. Cottrill as attorney-in-fact | 21 Jul 2025 | 0001230654 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WMS | Common Stock | Award | $0 | +1,967 | +9.2% | $0.000000 | 23,288 | 17 Jul 2025 | Direct |