| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| KING BRIAN W. | Executive Vice President | C/O ADVANCED DRAINAGE SYSTEMS, INC., 4640 TRUEMAN BOULEVARD, HILLIARD | /s/ Brian W. King, by Scott A. Cottrill as attorney-in-fact | 23 May 2025 | 0001824317 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | WMS | Common Stock | Tax liability | $18,537 | -167 | -0.99% | $111.00 | 16,692 | 22 May 2025 | Direct | F1 |
| holding | WMS | Common Stock | 1,769 | 22 May 2025 | By KSOP | F2 |
| Id | Content |
|---|---|
| F1 | Represents shares withheld to satisfy Reporting Person's tax obligations in connection with the vesting of shares of restricted common stock of the Issuer. |
| F2 | Represents current allocation under KSOP. |