Mauney William Marshall Jr Insider Trades & Stock Holdings

Vice President, R&D · Powell Industries, Inc. · Latest filing Sep 30, 2026

Mauney William Marshall Jr, Vice President, R&D at Powell Industries, Inc. has 1 Form 4 trade on file since Sep 30, 2026. Open-market activity: 0 purchases ($0) and 1 sale ($56.49K), net -$56.49K. Latest filing: disposed of 301 shares of $POWL on Sep 30, 2026 at $187.67.

Trades on file

1

Open-market bought

$0

Open-market sold

$56.49K

Net open-market

-$56.49K

Latest filing

Sep 30, 2026

All insider trades by Mauney William Marshall Jr

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Sep 30, 2026	$POWL	Sell (Open-market sale)	301	$187.67	$56.49K						Vice President, R&D		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Mauney William Marshall Jr traded

• $POWL

Frequently asked questions

Has Mauney William Marshall Jr been buying or selling stock?

Mauney William Marshall Jr has 0 open-market purchases and 1 open-market sale on file, net -$56.49K. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Mauney William Marshall Jr's latest insider trade?

disposed of 301 shares of $POWL on Sep 30, 2026 at $187.67.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.