D. SCOTT BARBOUR - 25 Nov 2025 Form 4 Insider Report for ADVANCED DRAINAGE SYSTEMS, INC. (WMS)

Role
President & Chief Executive Officer, Director
Signature
/s/ D. Scott Barbour, by Scott A. Cottrill as attorney-in-fact
Issuer symbol
WMS
Transactions as of
25 Nov 2025
Transactions value $
$0
Form type
4
Filing time
26 Nov 2025, 16:05:05 UTC
Previous filing
13 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
BARBOUR D. SCOTT President & Chief Executive Officer, Director C/O ADVANCED DRAINAGE SYSTEMS, INC., 4640 TRUEMAN BOULEVARD, HILLIARD /s/ D. Scott Barbour, by Scott A. Cottrill as attorney-in-fact 26 Nov 2025 0001716232

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WMS Common Stock Gift $0 -1.8K -4.2% $0.00 41.1K 25 Nov 2025 Direct
transaction WMS Common Stock Gift $0 -14.5K -54.99% $0.00 11.9K 25 Nov 2025 Reporting Person's 2024 GRAT F1
transaction WMS Common Stock Gift $0 +14.5K +20.87% $0.00 84K 25 Nov 2025 Reporting Person's Revocable Trust F2
transaction WMS Common Stock Gift $0 -46.5K -55.36% $0.00 37.5K 25 Nov 2025 Reporting Person's Revocable Trust F2
transaction WMS Common Stock Gift $0 +46.5K $0.00 46.5K 25 Nov 2025 Reporting Person's 2025 GRAT F1
holding WMS Common Stock 98.8K 25 Nov 2025 Reporting Person's Irrevocable Trust F3
holding WMS Common Stock 6.5K 25 Nov 2025 Spouse's Revocable Trust F4
holding WMS Common Stock 69K 25 Nov 2025 Spouse's Irrevocable Trust F5
holding WMS Common Stock 25.1K 25 Nov 2025 Reporting Person's 2023 GRAT F1
holding WMS Common Stock 17K 25 Nov 2025 By KSOP F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares held in GRATs of which the reporting person is trustee.
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 Represents current allocation under KSOP.

Remarks:

President & Chief Executive Officer