William Marshall Mauney Jr sold $809k of POWL
Vice President, R&D at POWELL INDUSTRIES INC. 2,500 shares at an average of $323.69, traded May 11, 2026, filed May 13, 2026.
Score components
- +15RoleOfficer
- +22Trade size$809k at market
- +5Share of holdings soldSold 19% of holdings
- +15Cluster3 insiders selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0000080420-26-000072, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 11, 2026 | SOpen-market sale Common Stock | -927 | $321.86 | $298k | 12,426 | May 13, 2026 |
| May 11, 2026 | SOpen-market sale Common Stock | -386 | $322.70 | $125k | 12,040 | May 13, 2026 |
| May 11, 2026 | SOpen-market sale Common Stock | -176 | $323.82 | $57k | 11,864 | May 13, 2026 |
| May 11, 2026 | SOpen-market sale Common Stock | -313 | $324.87 | $102k | 11,551 | May 13, 2026 |
| May 11, 2026 | SOpen-market sale Common Stock | -623 | $325.97 | $203k | 10,928 | May 13, 2026 |
| May 11, 2026 | SOpen-market sale Common Stock | -66 | $327.06 | $22k | 10,862 | May 13, 2026 |
| May 11, 2026 | SOpen-market sale Common Stock | -9 | $327.69 | $2,949 | 10,853 | May 13, 2026 |
Related signals
Other insiders at POWELL INDUSTRIES INC and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 57Moderate | POWELL INDUSTRIES INC | Brett Alan Cope President & CEO | $901k 4,799 shares | -1% | |
| 30Weak | POWELL INDUSTRIES INC | William Marshall Mauney Jr Vice President, R&D | $56k 301 shares | -3% | |
| 20Weak | POWELL INDUSTRIES INC | Richard E Williams director | $457k 2,250 shares | -6% | |
| 37Weak | POWELL INDUSTRIES INC | Brett Alan Cope President & CEO | $932k 4,500 shares | -1% | |
| 45Moderate | POWELL INDUSTRIES INC | Brett Alan Cope President & CEO | $1.1M 4,440 shares | -1% | |
| 50Moderate | POWELL INDUSTRIES INC | Brett Alan Cope President & CEO | $360 36,000 shares | -6% | |
| 35Weak | POWELL INDUSTRIES INC | Michael William Metcalf Exec Vice President | $1.3M 4,500 shares | -5% | |
| 52Moderate | POWELL INDUSTRIES INC | Thomas W Powell owner | $10M 33,958 shares | -6% | |
| 45Moderate | POWELL INDUSTRIES INC | Brett Alan Cope President & CEO | $1.2M 4,440 shares | -1% | |
| 36Weak | POWELL INDUSTRIES INC | Mohit Singh director | $396k 1,350 shares | -33% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.