BARBOUR D. SCOTT 4

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.