Mauney William Marshall Jr (CIK 2025220) reported 12 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-13). Recent activity: Sell POWL (927 shares), Sell POWL (386 shares), Sell POWL (176 shares), Sell POWL (313 shares), Sell POWL (623 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-13 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Sell | 927 | $298,364 |
| 2026-05-13 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Sell | 386 | $124,562 |
| 2026-05-13 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Sell | 176 | $56,992 |
| 2026-05-13 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Sell | 313 | $101,684 |
| 2026-05-13 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Sell | 623 | $203,079 |
| 2026-05-13 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Sell | 66 | $21,586 |
| 2026-05-13 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Sell | 9 | $2,949 |
| 2025-12-22 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Sell | 3,000 | $995,190 |
| 2025-12-03 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Buy | 3,000 | $945,090 |
| 2025-10-01 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Sell | 466 | $140,396 |
| 2025-10-01 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Buy | 300 | $86,154 |
| 2025-09-09 | POWELL INDUSTRIES INC (POWL) | Vice President, R&D | Sell | 770 | $205,436 |
Source: SEC Form 4 filings · as of 2026-05-13