Mauney William Marshall Jr., Vice President of R&D at Powell Industries ($POWL), sold nearly $1 million worth of company shares in a single open market transaction over the past year. His most recent sale occurred on December 19, 2025. These sales rank 4,947th among 11,678 insiders, below the average of $8.6 million per seller and 6.4 transactions. He made no open market purchases in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 19, 2025 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | S | Common Stock | 3000 | $331.73 | 4,451.0000 | 12,876,000 | 40.26% | 0.02% |
| Dec. 1, 2025 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | A | Common Stock | 3000 | $315.03 | 7,451.0000 | 12,876,000 | 67.40% | 0.02% |
| Sept. 30, 2025 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | F | Common Stock | 466 | $301.28 | 4,151.0000 | 12,875,000 | 10.09% | 0.00% |
| Oct. 1, 2025 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | A | Common Stock | 300 | $287.18 | 4,451.0000 | 12,876,000 | 7.23% | 0.00% |
| Sept. 5, 2025 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | F | Common Stock | 770 | $266.80 | 4,617.0000 | 12,875,000 | 14.29% | 0.01% |
| Dec. 4, 2024 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | S | Common Stock | 700 | $282.91 | 5,687.0000 | 12,795,000 | 10.96% | 0.01% |
| Dec. 4, 2024 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | S | Common Stock | 300 | $287.08 | 5,387.0000 | 12,795,000 | 5.28% | 0.00% |
| Oct. 1, 2024 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | A | Common Stock | 400 | $182.14 | 6,387.0000 | 12,795,000 | 6.68% | 0.00% |
| Sept. 30, 2024 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | F | Common Stock | 433 | $221.11 | 5,987.0000 | 12,794,000 | 6.74% | 0.00% |
| Sept. 6, 2024 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | F | Common Stock | 770 | $0.00 | 6,420.0000 | 12,794,000 | 10.71% | 0.01% |
| Aug. 15, 2024 | POWELL INDUSTRIES INC | $POWL | Mauney William Marshall Jr | Vice President, R&D | S | Common Stock | 150 | $163.76 | 7,190.0000 | 12,794,000 | 2.04% | 0.00% |