Advanced Drainage Systems (WMS)
Makes thermoplastic stormwater and onsite wastewater systems through an integrated production and distribution network.
$130.73
After hours+0.00 (+0.00%)
At close$130.73(+3.03%)
Something off on this page? Send us feedback.
13F · 13D/G · Form 4
| Institutions | 93.19% | 70.27M shares | |
|---|---|---|---|
| 568 holders · as of Jun 30, 2026 | |||
| Insiders | 4.90% | 3.70M shares | |
| 21 holders · as of Sep 3, 2026 | |||
| Other | 1.91% | 1.44M shares | |
| remainder | |||
75.41M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
568 holders · 70.27M shares · 66 new positions · 265 increased · 209 reduced · 87 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 7.47M | 9.91% | +47.2K | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 3.71M | 4.91% | +89.9K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 3.40M | 4.51% | −26.7K | Aug 13, 2026 |
| State Street Corp | 2.69M | 3.57% | +204.1K | Aug 7, 2026 |
| First Trust Advisors LP | 2.66M | 3.53% | +616.7K | Aug 11, 2026 |
| UBS Asset Management Americas Inc | 2.35M | 3.11% | −103.5K | Aug 13, 2026 |
| Impax Asset Management Group PLC | 1.85M | 2.45% | −81.6K | Aug 11, 2026 |
| Baillie Gifford & Co | 1.84M | 2.43% | −212.1K | Aug 6, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 8.90% | 6.89M | 13G | Jul 17, 2025 |
| Advanced Drainage Systems Inc. Employee Stock Ownership Plan Trust | 6.00% | 4.63M | 13G | Feb 13, 2026 |
| Vanguard Capital Management | 5.10% | 3.98M | 13G | Apr 29, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Dec 3, 2025 | Robert M. Eversoledirector | Sale | 10,569 | $152.82 | 50,076 |
| Nov 26, 2025 | Thomas J. Sr. Waunofficer: EVP, International | Sale | 1,500 | $155.00 | 13,470 |
| Nov 12, 2025 | Tim A. Makowskiofficer: See Remarks | Sale · 2 lots | 4,901 | $149.21 | 2,467 |
| Nov 12, 2025 | D. Scott Barbourdirector, officer: See Remarks | Sale · 3 lots | 80,030 | $148.95 | 42,867 |
| Nov 11, 2025 | Thomas J. Sr. Waunofficer: EVP, International | Sale | 1,272 | $148.30 | 797 |
| Nov 12, 2025 | Thomas J. Sr. Waunofficer: EVP, International | Sale | 1,000 | $150.00 | 14,970 |
House and Senate disclosures
Not reported.