Trade Summary

1 week ago, Mauney William Marshall Jr, serving as VP, R, D at Powell Industries Inc (POWL), sold 3,000 shares at $331.73 per share, for a total transaction value of $995,190.00. Following this transaction, Mauney William Marshall Jr now holds 4,451 shares of POWL.

This sale represents a 40.00% decrease in Mauney William Marshall Jr's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Friday, December 19, 2025 and publicly disclosed via SEC Form 4 filing on Monday, December 22, 2025, 3 days after the trade was made.

Powell Industries Inc operates in the INDUSTRIALS sector, specifically within the ELECTRICAL EQUIPMENT & PARTS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.