ADVANCED DRAINAGE SYSTEMS, INC.·4

May 28, 4:05 PM ET

BARBOUR D. SCOTT 4

4 · ADVANCED DRAINAGE SYSTEMS, INC. · Filed May 28, 2026

Research Summary

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Advanced Drainage Systems (WMS) CEO Barbour D. Scott Receives 29,160-Share Award

What Happened
Barbour D. Scott, President & Chief Executive Officer of Advanced Drainage Systems (WMS), received equity awards on May 26, 2026 totaling 29,160 shares. The Form 4 shows two grant-type acquisitions: 9,036 shares issued at $0.00 (direct shares) and 20,124 shares reported as derivative securities (also $0.00). Because the reported price is $0.00, these are awards/grants rather than purchases — no cash was paid.

Key Details

  • Transaction date: 2026-05-26; Form 4 filed 2026-05-28 (filed promptly after the transaction).
  • Grants: 9,036 shares (direct award) and 20,124 derivative shares (total 29,160). Reported price: $0.00.
  • Shares owned after transaction: not specified in the filing.
  • Footnotes: holdings are reported across various trusts (revocable and irrevocable trusts, GRATs) and a KSOP allocation; F8 notes certain options vest in three equal annual installments beginning May 26, 2027, subject to continued employment.
  • Transaction code: "A" = grant/award/other acquisition. No sale or cashless exercise reported.

Context

  • These awards are grants, not open-market purchases or sales, and typically reflect compensation or retention incentives rather than an immediate signal of buying/selling intent.
  • The 20,124 derivative shares appear subject to vesting conditions (see footnote F8 about three-year vesting), so they may not be immediately transferable.
  • No indications of a sale, gift, or 10b5-1 plan in this filing.

Insider Transaction Report

Form 4
Period: 2026-05-26
BARBOUR D. SCOTT
DirectorSee Remarks
Transactions
  • Award

    Common Stock

    2026-05-26+9,03677,268 total
  • Award

    Option to Purchase Common Stock

    [F8]
    2026-05-26+20,12420,124 total
    Exercise: $138.09Exp: 2036-05-27Common Stock (20,124 underlying)
Holdings
  • Common Stock

    [F1]
    (indirect: By Trust)
    53,141
  • Common Stock

    [F2]
    (indirect: By Trust)
    109,955
  • Common Stock

    [F3]
    (indirect: By Trust)
    511
  • Common Stock

    [F4]
    (indirect: Reporting Person's 2024 GRAT)
    11,867
  • Common Stock

    [F4]
    (indirect: Reporting Person's 2025 GRAT)
    46,500
  • Common Stock

    [F5]
    (indirect: By Trust)
    6,495
  • Common Stock

    [F6]
    (indirect: By Trust)
    69,005
  • Common Stock

    [F7]
    (indirect: By KSOP)
    17,087.425
Footnotes (8)
  • [F1]Shares held in revocable trust for the benefit of the reporting person.
  • [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.
  • [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.
  • [F4]Shares held in GRATs of which the reporting person is trustee.
  • [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]Represents current allocation under KSOP.
  • [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.
Signature
/s/ D. Scott Barbour, by Scott A. Cottrill as attorney-in-fact|2026-05-28

Documents

1 file
  • 4
    ownership.xmlPrimary

    4