William Marshall Mauney Jr. - 05 Sep 2025 Form 4 Insider Report for POWELL INDUSTRIES INC (POWL)

Role: Vice President, R&D
Signature: Michael W. Metcalf, Power of Attorney for William Marshall Mauney, Jr.
Issuer symbol: POWL
Transactions as of: 05 Sep 2025
Net transactions value: -$205,436
Form type: 4
Filing time: 09 Sep 2025, 16:14:33 UTC
Previous filing: 06 Dec 2024
Next filing: 01 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Mauney William Marshall Jr	Vice President, R&D	8550 MOSLEY ROAD, HOUSTON	Michael W. Metcalf, Power of Attorney for William Marshall Mauney, Jr.	09 Sep 2025	0002025220

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	POWL	Common Stock	Tax liability	$205,436	-770	-14%	$266.80	4,617	05 Sep 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Includes shares that have a time-based vesting provision.