ADVANCED DRAINAGE SYSTEMS, INC. — Director's Dealing 2025

May 23, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADVANCED DRAINAGE SYSTEMS, INC. (WMS)
CIK: 0001604028
Period of Report: 2025-05-22

Reporting Person: BARBOUR D. SCOTT (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-22	Common Stock	F	1930	$111	Disposed	42867	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	69491	Indirect
Common Stock	98805	Indirect
Common Stock	6495	Indirect
Common Stock	69005	Indirect
Common Stock	25111	Indirect
Common Stock	26367	Indirect
Common Stock	16997.0469	Indirect

Footnotes

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: Shares held in revocable trust for the benefit of the reporting person.

F3: Shares held in irrevocable spousal access trust established by the reporting person, of which the reporting person's spouse is a co-trustee. The beneficiaries of the irrevocable trust are the reporting person and his children.

F4: Shares held in revocable trust for the benefit of the reporting person's spouse.

F5: Shares held in irrevocable spousal access trust established by the reporting person's spouse, of which the reporting person is a co-trustee. The beneficiaries of the irerrevocable trust include the reporting person's spouse and his children.

F6: Shares held in GRATs of which the reporting person is trustee.

F7: Represents current allocation under KSOP.