D. Scott Barbour - 26 May 2026 Form 4 Insider Report for ADVANCED DRAINAGE SYSTEMS, INC. (WMS)

Reporting relationship: President & Chief Executive Officer, Director
Issuer ticker: WMS
Reported as of: 26 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 28 May 2026, 16:05:08 UTC
Prior SEC filing: 27 May 2026
Next SEC filing: 02 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ D. Scott Barbour, by Scott A. Cottrill as attorney-in-fact

Key filing fact

D. Scott Barbour filed Form 4 for ADVANCED DRAINAGE SYSTEMS, INC. (WMS) on 28 May 2026.

Key facts

This page summarizes D. Scott Barbour's Form 4 filing for ADVANCED DRAINAGE SYSTEMS, INC. (WMS).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 28 May 2026, 16:05.

Change

Previous filing in this sequence was filed on 27 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001716232 Primary reporting owner

BARBOUR D. SCOTT

Relationship: President & Chief Executive Officer, Director
Address: C/O ADVANCED DRAINAGE SYSTEMS, INC., 4024 GREEN STRIPE LANE, HILLIARD
Signature: /s/ D. Scott Barbour, by Scott A. Cottrill as attorney-in-fact
Signature date: 28 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WMS transaction

Common Stock

Award

Transaction value
Shares: +9,036
Change %: +13%
Price: $0.000000^*
Shares after: 77,268
Date: 26 May 2026
Ownership: Direct

WMS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 53,141
Date: 26 May 2026
Ownership: Reporting Person's Revocable Trust
Footnotes: F1

WMS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 109,955
Date: 26 May 2026
Ownership: Reporting Person's Irrevocable Trust
Footnotes: F2

WMS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 511
Date: 26 May 2026
Ownership: 2023 GRAT Remainder Trust
Footnotes: F3

WMS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 11,867
Date: 26 May 2026
Ownership: Reporting Person's 2024 GRAT
Footnotes: F4

WMS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 46,500
Date: 26 May 2026
Ownership: Reporting Person's 2025 GRAT
Footnotes: F4

WMS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 6,495
Date: 26 May 2026
Ownership: Spouse's Revocable Trust
Footnotes: F5

WMS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 69,005
Date: 26 May 2026
Ownership: Spouse's Irrevocable Trust
Footnotes: F6

WMS holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 17,087
Date: 26 May 2026
Ownership: By KSOP
Footnotes: F7

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

WMS transaction Derivative

Option to Purchase Common Stock

Award

Transaction value
Shares: +20,124
Change %
Price: $0.000000^*
Shares after: 20,124
Date: 26 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 20,124
Exercise price: $138.09
Footnotes: F8

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 8 footnotes

Footnote F1

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

Footnote F2

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.

Footnote F3

Shares held in irrevocable remainder trust, of which the reporting person's spouse is trustee. The beneficiaries of the irrevocable trust are the reporting persons's nieces and nephew.

Footnote F4

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

Footnote F5

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

Footnote 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.

Footnote F7

Represents current allocation under KSOP.

Footnote F8

The options vest in three equal annual installments beginning on May 26, 2027, provided that the Reporting Person remains continuously employed by the Issuer through each applicable vesting date.

SEC remarks

President & Chief Executive Officer

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