WMS Advanced Drain Systems Inc.
Industrials, filed as ADVANCED DRAIN SYS INC DEL (COM), Equity As of 2026 Q2 among managers we track Quote on Google Finance, opens in a new tab
Bought by 1 manager in 2026 Q2, sold by 1
In 2026 Q2 Ron Baron added to Advanced Drain Systems, while First Eagle Investment Management sold out.
Who owns this now
Largest portfolio weights among holders, up to 0.2% (Ron Baron, Bamco Inc. (Baron Capital)). Not free-float ownership.
Who owns WMS
Sorted by value, long equity only, as of 2026 Q2. Exits show their last held size.
| History | |||||
|---|---|---|---|---|---|
| Ron Baron, Bamco Inc. (Baron Capital) | Add +133.7% | 680,431 | $107M | History | |
| First Eagle Investment Management exited 2026 Q2 Last 2026 Q1 | Exit 0.00% | 5,326 | $730K | History |
Insider trades
Open-market buys and sales by WMS's executives, directors and 10% owners in the last 12 months, from their Form 4s
- None no insider bought on the open market
- $14.8M sold by 4 insiders outside a trading plan
- None no planned (10b5-1) sales
-
Robert M Eversole DirectorSale$1.6M 10,569 shares at $152.82 17% of stakeTraded Dec 3, 2025 Filed Dec 5, 2025
-
Thomas J. Waun Sr. EVP, InternationalSale$233K 1,500 shares at $155.00 10% of stakeTraded Nov 26, 2025 Filed Dec 1, 2025
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Thomas J. Waun Sr. EVP, InternationalSale$339K 2,272 shares at $149.05Traded Nov 11–12 Filed Nov 13, 2025
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D. Scott Barbour See RemarksSale$11.9M 80,030 shares at $148.95 65% of stakeTraded Nov 12, 2025 Filed Nov 13, 2025
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Tim A Makowski See RemarksSale$731K 4,901 shares at $149.21 67% of stakeTraded Nov 12, 2025 Filed Nov 13, 2025
Also filed in the last 12 months, not counted as buying or selling: 26 share withholdings for taxes, 24 stock grants, 18 gifts, 3 other transactions, and 1 option exercise.
Congress
3 members of Congress traded WMS in the last three years: 1 buy and 3 sales.
-
Lisa C. McClain
Sell
$1K–$15K
Jul 16, 2025
filed Aug 13, 2025
-
Lisa C. McClain
Buy
$1K–$15K
Jun 17, 2025
filed Aug 13, 2025
-
Robert P. Bresnahan, Jr.
Sell
$1K–$15K
Jan 13, 2025
filed Feb 13, 2025
-
Tommy Tuberville
Sell
$1K–$15K
May 7, 2024
filed Jun 14, 2024
SEC filings
Recent issuer filings from EDGAR, 7 shown.
Financials
US-GAAP annual figures by fiscal year, as tagged in Form 10-K. Each value links to its SEC filing.
Income statement
Balance sheet
| Metric | FY2023 | FY2024 | FY2025 | FY2026 |
|---|---|---|---|---|
| Total current assets | $1.02B | $1.3B | $1.32B | $1.23B |
| Total non-current assets * | $1.88B | $1.97B | $2.37B | $3.27B |
| Total assets | $2.9B | $3.27B | $3.69B | $4.51B |
| Total current liabilities | $378.8M | $439.62M | $398.4M | $509.47M |
| Total non-current liabilities * | $1.53B | $1.55B | $1.66B | $2.04B |
| Total equity | $0.824B | $1.15B | $1.53B | $1.86B |
Ownership over time
13Fs that reported it each quarter. Click a bar for that quarter’s holders.