Thomas W Powell Insider Trading Activity

Corporate Insider10%+ Owner · CIK 1219199

Total trades

$41.0M

Total volume

Mar 19, 2026

Last activity

POWL

POWELL INDUSTRIES INC

Thomas W Powell has been net-selling over the last 12 months with 0 purchases and 12 sales across 1 company.

POWL is the most-traded position with 12 trades. The largest single transaction was a sale of POWL for $25.0M on Mar 19, 2026.

Performance Scorecard

Forward stock performance after each transaction by Thomas W Powell. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIOD	AVG BUY RETURN	AVG SELL AVOIDED	SUCCESS RATE	TRADES
30 days	—	+68.8%	100%	12
90 days	—	+48.1%	100%	12
120 days	—	+49.4%	100%	12

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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POWL · POWELL INDUSTRIES INC

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Recent Trades

DATE	TICKER	TYPE	SHARES	PRICE	VALUE	Δ OWNED	ROLE
Mar 19, 2026	POWL	Sell	49,778	$502.23	$25.0M	−7.7%	10%+ Owner
Feb 25, 2026	POWL	Sell	318	$560.37	$178K	−0.0%	10%+ Owner
Feb 24, 2026	POWL	Sell	400	$560.30	$224K	−0.1%	10%+ Owner
Feb 24, 2026	POWL	Sell	412	$561.44	$231K	−0.1%	10%+ Owner
Feb 24, 2026	POWL	Sell	223	$562.25	$125K	−0.0%	10%+ Owner
Feb 24, 2026	POWL	Sell	124	$563.65	$70K	−0.0%	10%+ Owner
Feb 13, 2026	POWL	Sell	120	$600.06	$72K	−0.0%	10%+ Owner
Feb 12, 2026	POWL	Sell	8,511	$600.56	$5.1M	−1.3%	10%+ Owner
Feb 12, 2026	POWL	Sell	6,320	$601.39	$3.8M	−1.0%	10%+ Owner
Feb 12, 2026	POWL	Sell	80	$602.58	$48K	−0.0%	10%+ Owner
Feb 11, 2026	POWL	Sell	2,309	$593.57	$1.4M	−0.3%	10%+ Owner
Feb 11, 2026	POWL	Sell	7,976	$592.27	$4.7M	−1.2%	10%+ Owner