Ping Ni - 30 Sep 2025 Form 4 Insider Report for POWELL INDUSTRIES INC (POWL)

Role: Assistant Secretary/Treasurer
Signature: Michael W. Metcalf, Power of Attorney for Ping Ni
Issuer symbol: POWL
Transactions as of: 30 Sep 2025
Net transactions value: +$11,545
Form type: 4
Filing time: 01 Oct 2025, 17:08:58 UTC
Previous filing: 02 Oct 2024
Next filing: 21 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Ni Ping	Assistant Secretary/Treasurer	8550 MOSLEY ROAD, HOUSTON	Michael W. Metcalf, Power of Attorney for Ping Ni	01 Oct 2025	0002024984

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	POWL	Common Stock	Tax liability	$17,173	-57	-2.3%	$301.28	2,373	30 Sep 2025	Direct	F1, F2
transaction	POWL	Common Stock	Award	$28,718	+100	+4.2%	$287.18	2,473	01 Oct 2025	Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	Represents the average of the high and low stock price on 09/30/2025.
F2	Includes shares that have a time-based vesting provision.
F3	Represents the average closing stock price from September 1, 2025 - September 30, 2025.