D. SCOTT BARBOUR - 14 May 2025 Form 4 Insider Report for ADVANCED DRAINAGE SYSTEMS, INC. (WMS)

Signature
/s/ D. Scott Barbour, by Scott A. Cottrill as attorney-in-fact
Issuer symbol
WMS
Transactions as of
14 May 2025
Transactions value $
-$1,590,114
Form type
4
Filing time
16 May 2025, 16:05:40 UTC
Previous filing
09 May 2025
Next filing
21 May 2025

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 16 May 2025 0001716232

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WMS Common Stock Award $0 +31.5K +160.64% $0.00 51.2K 14 May 2025 Direct F1
transaction WMS Common Stock Tax liability -$1.57M -12.9K -25.15% $121.68 38.3K 14 May 2025 Direct F2
transaction WMS Common Stock Tax liability -$24.5K -201 -0.52% $121.68 38.1K 14 May 2025 Direct F2
holding WMS Common Stock 69.5K 14 May 2025 Reporting Person's Revocable Trust F3
holding WMS Common Stock 98.8K 14 May 2025 Reporting Person's Irrevocable Trust F4
holding WMS Common Stock 6.5K 14 May 2025 Spouse's Revocable Trust F5
holding WMS Common Stock 69K 14 May 2025 Spouse's Irrevocable Trust F6
holding WMS Common Stock 25.1K 14 May 2025 Reporting Person's 2023 GRAT F7
holding WMS Common Stock 26.4K 14 May 2025 Reporting Person's 2024 GRAT F7
holding WMS Common Stock 17K 14 May 2025 By KSOP F8
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects grant of performance-based units, originally granted pursuant to the Issuer's 2017 Omnibus Incentive Plan, earned after the Issuer determined that certain performance goals for the performance period ended March 31, 2025 had been met. Total includes dividend equivalents in the amount of 442 shares, which dividend equivalents are settled in common stock.
F2 Represents shares withheld to satisfy Reporting Person's tax obligations in connection with the vesting of shares of restricted common stock of the Issuer.
F3 Shares held in revocable trust for the benefit of the reporting person.
F4 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.
F5 Shares held in revocable trust for the benefit of the reporting person's spouse.
F6 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.
F7 Shares held in GRATs of which the reporting person is trustee.
F8 Represents current allocation under KSOP.

Remarks:

President & Chief Executive Officer