William Marshall Mauney Jr

Insider

Vice President, R&D

Trades at: POWL

30D 90D 1Y

Net shares · 90d

-2.5K

0 buy · 2.5K sell

Net value · 90d

-$809.2K

$0 in · $809.2K out

Sentiment · 90d

Net selling

0% buying · 100% selling

Open-market trades · 90d

0 buy · 2.5K sell

Net buy / sell volume (all companies)

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Show open-market only

POWL Sell·S
May 11, 26

Vice President, R&D

$2.9K

9 sh · $327.69

Own -0%
POWL Sell·S
May 11, 26

Vice President, R&D

$21.6K

66 sh · $327.06

Own -1%
POWL Sell·S
May 11, 26

Vice President, R&D

$203.1K

623 sh · $325.97

Own -5%
POWL Sell·S
May 11, 26

Vice President, R&D

$101.7K

313 sh · $324.87

Own -3%
POWL Sell·S
May 11, 26

Vice President, R&D

$57.0K

176 sh · $323.82

Own -1%
POWL Sell·S
May 11, 26

Vice President, R&D

$124.6K

386 sh · $322.70

Own -3%
POWL Sell·S
May 11, 26

Vice President, R&D

$298.4K

927 sh · $321.86

Own -7%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
May 11, 2026	POWL	Vice President, R&D	Sell S	9	-0%	$327.69	$2.9K
May 11, 2026	POWL	Vice President, R&D	Sell S	66	-1%	$327.06	$21.6K
May 11, 2026	POWL	Vice President, R&D	Sell S	623	-5%	$325.97	$203.1K
May 11, 2026	POWL	Vice President, R&D	Sell S	313	-3%	$324.87	$101.7K
May 11, 2026	POWL	Vice President, R&D	Sell S	176	-1%	$323.82	$57.0K
May 11, 2026	POWL	Vice President, R&D	Sell S	386	-3%	$322.70	$124.6K
May 11, 2026	POWL	Vice President, R&D	Sell S	927	-7%	$321.86	$298.4K

About William Marshall Mauney Jr

This profile aggregates every SEC Form 4 insider transaction reported by William Marshall Mauney Jr across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.