Form 4 for POWL POWELL INDUSTRIES INC

Accepted 2026-02-26 00:00:00 ET · period of report 2026-02-24 · accession 0001219199-26-000002 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
M	2026-02-26	2026-02-24+	POWL	POWELL THOMAS W	10%	S - Sale	$561.21	-1,477	650.5K	-0.2%	-$828.9K

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-02-24	S	D	400	$560.30	651,549	D	—	—	(F1) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $560.00 to $560.980, inclusive.
2	Common	Common Stock	2026-02-24	S	D	412	$561.44	651,137	D	—	—	(F2) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $561.00 to $561.980, inclusive.
3	Common	Common Stock	2026-02-24	S	D	223	$562.25	650,914	D	—	—	(F3) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $562.00 to $562.520, inclusive.
4	Common	Common Stock	2026-02-24	S	D	124	$563.65	650,790	D	—	—	(F4) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $563.275 to $564.080, inclusive.
5	Common	Common Stock	2026-02-25	S	D	318	$560.37	650,472	D	—	—	(F5) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $560.00 to $560.50, inclusive.