Form 4 for POWL POWELL INDUSTRIES INC

Accepted 2026-02-13 00:00:00 ET · period of report 2026-02-11 · accession 0001219199-26-000001 · 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	2026-02-13	2026-02-11+	POWL	POWELL THOMAS W	10%	S - Sale	$597.52	-25.3K	652.1K	-4%	-$15.13M

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	2026-02-11	S	D	7,976	$592.27	669,289	D	—	—	(F1) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $592.00 to $592.970, inclusive.
2	Common	Common Stock	2026-02-12	S	D	80	$602.58	652,069	D	—	—	(F5) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $602.55 to $602.600, inclusive.
3	Common	Common Stock	2026-02-13	S	D	120	$600.06	651,949	D	—	—	(F6) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $600.00 to $600.190, inclusive.
4	Common	Common Stock	2026-02-11	S	D	2,309	$593.57	666,980	D	—	—	(F2) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $593.00 to $593.840, inclusive.
5	Common	Common Stock	2026-02-12	S	D	8,511	$600.56	658,469	D	—	—	(F3) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $600.00 to $600.820, inclusive.
6	Common	Common Stock	2026-02-12	S	D	6,320	$601.39	652,149	D	—	—	(F4) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $601.00 to $601.945, inclusive.