Mauney William Marshall Jr
Vice President, R&D
Mauney William Marshall Jr has filed 6 SEC Form 4 filings (14 transaction rows) across 1 company, with disclosures dating back to 2025. 4 of those filings fall inside the rolling window. Most recent filing: Oct 2, 2026.
On the most recent filing, Mauney William Marshall Jr is listed as Vice President, R&D at POWELL INDUSTRIES INC. Inside the rolling window, Mauney William Marshall Jr reported no open-market purchases and 3 open-market sales totaling $1.9M in POWL. The largest disclosed transaction in the window is a sale of 3,000 POWL shares on Dec 19, 2025, worth $995K.
Companies traded
Other insiders at POWL
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$1.9M
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Mauney William Marshall Jr made?
Mauney William Marshall Jr has filed 6 SEC Form 4 filings (14 transaction rows) across 1 company since 2025.
Which companies does Mauney William Marshall Jr trade?
Mauney William Marshall Jr has filed SEC Form 4 disclosures for 1 company, including POWL.
When was Mauney William Marshall Jr's most recent SEC Form 4 filing?
Mauney William Marshall Jr's most recent SEC Form 4 filing on Tracefour is dated Oct 2, 2026.
What is Mauney William Marshall Jr's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Mauney William Marshall Jr is listed as Vice President, R&D.
What is Mauney William Marshall Jr's total buy and sell value in the current window?
Inside the rolling retention window, Mauney William Marshall Jr bought $0 and sold $1.9M based on SEC Form 4 filings.
What was Mauney William Marshall Jr's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 3,000 POWL shares on 2025-12-19, worth $995K, per SEC Form 4 filings.