SEC Form 4 reporting owner

Mauney William Marshall Jr

Mauney William Marshall Jr has filed 9 Form 4 transactions reported between December 1, 2025 and May 11, 2026, as Vice President, R&D of POWELL INDUSTRIES INC.

Name as filed: Mauney William Marshall Jr

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$809K
7 lines
Companies
1
with Form 4 filings
Latest transaction
May 11, 2026
transaction date

Roles and reported holdings

  • POWLPOWELL INDUSTRIES INC
    Dec 1, 2025 – May 11, 2026

    Vice President, R&D

    Held directly10,853 sh as of May 11, 2026 · Form 4

    24 months: $809K sold

    1 line is priced far from POWL’s market price that day, so the filing may concern a different security. Left out of totals and holdings; see the filings.

Transaction history

All 9 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
May 11, 2026POWLVice President, R&DOpen-market saleCode S · direct9$3K@ $327.69Form 4
May 11, 2026POWLVice President, R&DOpen-market saleCode S · direct66$22K@ $327.06Form 4
May 11, 2026POWLVice President, R&DOpen-market saleCode S · direct623$203K@ $325.97Form 4
May 11, 2026POWLVice President, R&DOpen-market saleCode S · direct313$102K@ $324.87Form 4
May 11, 2026POWLVice President, R&DOpen-market saleCode S · direct176$57K@ $323.82Form 4
May 11, 2026POWLVice President, R&DOpen-market saleCode S · direct386$125K@ $322.70Form 4
May 11, 2026POWLVice President, R&DOpen-market saleCode S · direct927$298K@ $321.86Form 4
Dec 19, 2025POWLVice President, R&DOpen-market saleCode S · directPrice far from market; may be another security3,000$995K@ $331.73Form 4
Dec 1, 2025POWLVice President, R&DGrant or awardCode A · direct3,000$945K@ $315.03Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

1 open-market line is priced outside 0.67×–1.5× of the stock’s closing price that day. A gap that large usually means the filing reports a different security than the company it is filed under, so those lines are shown but left out of totals and holdings.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.