WMS insider buying and SEC filings, explained
Advanced Drainage Systems, Inc. · CIK 1604028
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$2.9M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Dec 3, 2025 | Sale | Robert M. Eversole (Director) sold 10,569 shares indirectly (by trust) at $152.82 ($1.6M). Holdings by trust down 17% to 50,076 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 5, 2025 |
| Nov 26, 2025 | Sale | Thomas J. Waun Sr. (EVP, International) sold 1,500 shares at $155.00 ($233K). Holdings down 10% to 13,470 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 1, 2025 |
| Nov 12, 2025 | Sale | Tim A. Makowski (Chief Accounting Officer) sold 4,901 shares at about $149.21 ($731K). Holdings down 67% to 2,467 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 13, 2025 |
| Nov 11–12, 2025 | Sale | Thomas J. Waun Sr. (EVP, International) sold 2,272 shares directly and indirectly between Nov 11, 2025 and Nov 12, 2025 at about $149.05 ($339K). Direct holdings down 6% to 14,970 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 13, 2025 |
46 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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