BARBOUR D. SCOTT 4

What Happened Barbour D. Scott, President & Chief Executive Officer (and director) of Advanced Drainage Systems, reported a gift-style transfer on March 4, 2026. The filing shows 511 shares disposed at $0.00 and 511 shares acquired at $0.00 — i.e., a gift/transfer of 511 shares with no cash proceeds reported. No dollar value was reported for the transaction (reported value $0).

Key Details

• Transaction date: March 4, 2026. Filing date: March 6, 2026 (timely filing).
• Transaction type: Gift/transfer (code G). Reported price: $0.00; reported proceeds: $0.
• Shares reported as both disposed and acquired: 511 shares (indicating an internal transfer or gift).
• Shares owned after transaction: not specified in this filing.
• Relevant footnotes in the filing note multiple trust holdings (revocable trusts, irrevocable remainder trusts, GRATs) and prior transfers, including a Dec 17, 2025 transfer of 24,600 shares exempt under Rule 16a-13.
• The filing also corrects prior reporting details for earlier gifts (see footnotes).

Context Gifts and intra-family or trust transfers are common and do not necessarily signal the insider’s view on the company’s stock price. This filing appears to reflect a non-market transfer between holdings/trusts rather than an open-market sale or purchase. The filing includes several footnotes describing the various trusts and beneficiaries (including nieces, nephew, spouse, and children), which explain the ownership and allocation structure behind the transfer.