Insider filing · POWL
William Marshall Mauney Jr
Vice President, R&D
profile →
Powell Industries, Inc.
POWL · Industrials · 37 filings in 24 months
ticker →
William Marshall Mauney Jr sold $995K of Powell Industries (POWL)
Executed Dec 19 2025, disclosed Dec 22 2025, 3 days later.
Value, as filed
$995K
3,000 sh × $331.73
Executed
Dec 19 2025
the trade date, as filed
Disclosed
Dec 22 2025
3 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.
$728K2,249 sh across 4 lots
Exec May 11
Filed May 13 · 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