Insider filing · POWL
William Marshall Mauney Jr
Vice President, R&D
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Powell Industries, Inc.
POWL · Industrials · 37 filings in 24 months
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William Marshall Mauney Jr sold $728K of Powell Industries (POWL)
Executed May 11, disclosed May 13, 2 days later.
Value, as filed
$728K
2,249 sh across 4 lots
Executed
May 11
the trade date, as filed
Disclosed
May 13
2 days after the trade
Return, 21 sessionsiFrom the disclosed entry session; derived
–
purchases only
Returns are measured on stock purchases only.
The filer
WJWilliam Marshall Mauney Jr (Vice President, R&D) filed 2 Form 4 reports in the trailing twelve months (0 purchases, 2 sales), most often in Powell Industries, Inc. (POWL). The largest single filing was $995K of POWL (3,000 sh × $331.73, as filed), executed Dec 19 2025.
The name
POWLIndustrials · Powell Industries, Inc., together with its subsidiaries, designs, develops, manufactures, sells, and services custom-engineered equipment a…
More Industrials filings→ Insider filings, newest first→ View the original filing at www.sec.gov→Other filings by William Marshall Mauney Jr in POWL
POWLSALE
Powell Industries, Inc.
$995K3,000 sh × $331.73
Exec Dec 19 2025
Filed Dec 22 2025 · 5:30 PM ET POWLSALE Powell Industries, Inc. $198K
700 sh × $282.91
Exec Dec 4 2024
Filed Dec 6 2024 · 5:30 PM ET