Thomas W. Powell is 10% Owner at POWELL INDUSTRIES INC (POWL). They have made 46 open-market trades across 1 company since 2006, most recently 2026-06-25.
CIK 0001219199
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $596K since 2022, against 45 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| POWL | 564,736 | $93.2M |
Shares reported on the most recent Form 4, priced at the 2026-06-26 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 84% | 27% | 20% |
| Avg Move | -4.5% | -3.4% | +4.3% |
| Scored | 45 | 45 | 45 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| POWL | SELL | 2026-06-25 | 2026-06-26 | $294.49 | $10.0M | -16.0% | -22.1% | -31.9% |
| POWL | SELL | 2026-03-19 | 2026-03-23 | $502.23 | $25.0M | +2.2% | +35.9% | +72.4% |
| POWL | SELL | 2026-02-24 | 2026-02-26 | $561.21 | $829K | +2.2% | -67.7% | -42.8% |
| POWL | SELL | 2026-02-11 | 2026-02-13 | $597.52 | $15.1M | -7.7% | -70.3% | -48.4% |
| POWL | SELL | 2024-11-08 | 2024-11-13 | $346.21 | $6.9M | -11.5% | -20.6% | -33.7% |
| POWL | SELL | 2024-10-11 | 2024-10-15 | $262.10 | $1.3M | -5.8% | +11.4% | -15.0% |
| POWL | SELL | 2024-10-09 | 2024-10-11 | $256.34 | $9.0M | -2.9% | +34.0% | -12.1% |
| POWL | SELL | 2024-10-07 | 2024-10-09 | $248.96 | $10.0M | +10.9% | +37.1% | -6.1% |
| POWL | SELL | 2024-09-25 | 2024-09-26 | $213.55 | $10.6M | +16.4% | +19.7% | +6.7% |
| POWL | SELL | 2024-05-30 | 2024-06-03 | $205.83 | $8.3M | +5.1% | -10.2% | -9.0% |
| POWL | SELL | 2024-03-04 | 2024-03-05 | $187.51 | $1.5M | -7.0% | -24.0% | -0.9% |
| POWL | SELL | 2024-02-29 | 2024-03-01 | $178.50 | $89K | -7.1% | -25.1% | +12.9% |
| POWL | SELL | 2024-02-26 | 2024-02-28 | $170.37 | $7.9M | -15.1% | -23.7% | +15.2% |
| POWL | SELL | 2024-02-21 | 2024-02-23 | $157.02 | $7.6M | -0.5% | -11.1% | +13.5% |
| POWL | SELL | 2024-02-12 | 2024-02-14 | $151.07 | $2.7M | +10.9% | +3.8% | +2.7% |
| POWL | SELL | 2023-12-20 | 2023-12-21 | $95.04 | $950K | -7.6% | -10.7% | +52.1% |
| POWL | SELL | 2023-12-15 | 2023-12-19 | $92.73 | $3.0M | -6.0% | -15.0% | +59.9% |
| POWL | SELL | 2023-12-08 | 2023-12-19 | $87.81 | $5.2M | -6.0% | -15.0% | +59.9% |
| POWL | SELL | 2023-08-02 | 2023-11-13 | $86.57 | $3.5M | +1.9% | +4.2% | +81.3% |
| POWL | BUY | 2022-04-11 | 2023-11-13 | $19.87 | $596K | +1.9% | +4.2% | +81.3% |
| POWL | SELL | 2010-06-21 | 2010-06-24 | $27.75 | $1.2M | -6.1% | +0.6% | +0.6% |
| POWL | SELL | 2009-06-25 | 2009-07-01 | $37.80 | $369K | -6.1% | +0.6% | +0.6% |
| POWL | SELL | 2009-06-22 | 2009-06-24 | $37.24 | $559K | -6.1% | +0.6% | +0.6% |
| POWL | SELL | 2009-06-17 | 2009-06-18 | $38.98 | $390K | -6.1% | +0.6% | +0.6% |
| POWL | SELL | 2009-06-15 | 2009-06-17 | $39.42 | $394K | -6.1% | +0.6% | +0.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.