Mauney William Marshall Jr — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

Mauney William Marshall Jr has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $1.09M.

Profile

Mauney William Marshall Jr

William Marshall Mauney Jr is a corporate executive known for his role as Vice President of Research and Development at Powell Industries Inc. He has been involved in the company's operations, focusing on custom-engineered equipment for electrical energy distribution.

RoleVice President, R&D
Notability20/100

Board memberships

Awards & honors

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-05-13POWLPOWELL INDUSTRIES INCS — Open-market sale9$327.69$3K
2026-05-13POWLPOWELL INDUSTRIES INCS — Open-market sale66$327.06$22K
2026-05-13POWLPOWELL INDUSTRIES INCS — Open-market sale623$325.97$203K
2026-05-13POWLPOWELL INDUSTRIES INCS — Open-market sale313$324.87$102K
2026-05-13POWLPOWELL INDUSTRIES INCS — Open-market sale176$323.82$57K
2026-05-13POWLPOWELL INDUSTRIES INCS — Open-market sale386$322.70$125K
2026-05-13POWLPOWELL INDUSTRIES INCS — Open-market sale927$321.86$298K
2025-09-30POWLPOWELL INDUSTRIES INCA — Grant or award300$287.18$86K
2025-09-30POWLPOWELL INDUSTRIES INCF — Tax withholding / forfeiture466$301.28$140K
2025-09-05POWLPOWELL INDUSTRIES INCF — Tax withholding / forfeiture770$266.80$205K
2024-12-06POWLPOWELL INDUSTRIES INCS — Open-market sale300$287.08$86K
2024-12-06POWLPOWELL INDUSTRIES INCS — Open-market sale700$282.91$198K
2024-10-02POWLPOWELL INDUSTRIES INCA — Grant or award400$182.14$73K
2024-10-02POWLPOWELL INDUSTRIES INCF — Tax withholding / forfeiture433$221.11$96K

Companies — Last 90 Days

Frequently Asked Questions

Who is Mauney William Marshall Jr?

William Marshall Mauney Jr is a corporate executive known for his role as Vice President of Research and Development at Powell Industries Inc. He has been involved in the company's operations, focusing on custom-engineered equipment for electrical energy distribution.…

How many SEC Form 4 filings has Mauney William Marshall Jr submitted recently?

1 primary Form 4 filings in the last 90 days, covering 1 company.

Has Mauney William Marshall Jr been buying or selling stock?

Recorded transactions: 0 open-market purchases () and 9 open-market sales ($1.09M) across all tracked filings.

Where can I see all of Mauney William Marshall Jr's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Learn More

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