William Marshall Mauney Jr Powell Industries Inc (POWL) insider trading activity

William Marshall Mauney Jr is Vice President, R&D of POWELL INDUSTRIES INC. Currently has a direct ownership of 7,451 shares of POWL, which is worth approximately $2.43 Million. The most recent transaction as insider was on Dec 01, 2025, when has been sold 3,000 shares (Common Stock) at a price of $315.03 per share, resulting in proceeds of $945,089. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 7.45K

61.38% 3M change

38.31% 12M change

Total Value Held $2.43 Million

William Marshall Mauney Jr Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 01 2025	BUY Grant, award, or other acquisition	$945,089 $315.03 p/Share	3,000 Added 28.71%	7,451 Common Stock
Oct 01 2025	BUY Grant, award, or other acquisition	$86,154 $287.18 p/Share	300 Added 6.31%	4,451 Common Stock
Sep 30 2025	SELL Payment of exercise price or tax liability	$140,396 $301.28 p/Share	466 Reduced 10.09%	4,151 Common Stock
Sep 05 2025	SELL Payment of exercise price or tax liability	$205,436 $266.8 p/Share	770 Reduced 14.29%	4,617 Common Stock
Dec 04 2024	SELL Open market or private sale	$284,990 $284.99 p/Share	1,000 Reduced 15.66%	5,387 Common Stock
Oct 01 2024	BUY Grant, award, or other acquisition	$72,856 $182.14 p/Share	400 Added 5.89%	6,387 Common Stock
Sep 30 2024	SELL Payment of exercise price or tax liability	$95,740 $221.11 p/Share	433 Reduced 6.74%	5,987 Common Stock

Sep 06 2024	SELL Payment of exercise price or tax liability	-	770 Reduced 10.71%	6,420 Common Stock
Aug 15 2024	SELL Open market or private sale	$24,564 $163.76 p/Share	150 Reduced 2.04%	7,190 Common Stock

WMM

William Marshall Mauney Jr

Vice President, R&D

Houston, TX

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