[Form 4] POWELL INDUSTRIES INC Insider Trading Activity

Rhea-AI Filing Summary

Ni Ping, Assistant Secretary/Treasurer of Powell Industries, reported a sale and a purchase of the issuer's common stock in successive days. On 09/30/2025 she disposed of 57 shares at an average price of $301.28 (the average of the high and low price that day), reducing her direct beneficial ownership to 2,373 shares. On 10/01/2025 she acquired 100 shares at an average price of $287.18 (the average closing price for September 2025), increasing her direct beneficial ownership to 2,473 shares. The Form 4 was signed by Michael W. Metcalf as Power of Attorney on 10/01/2025.

The transactions are reported as direct holdings and include shares subject to time-based vesting provisions. Price disclosures note the methods used to compute the reported per-share prices.

Insights

Financial Analyst

TL;DR: Insider executed a small sale followed by a larger purchase, ending with a modest net increase in direct holdings.

The reported transactions show a disposal of 57 shares on 09/30/2025 at an average intraday midpoint and an acquisition of 100 shares on 10/01/2025 at the average September closing price, leaving the reporting person with 2,473 directly held shares. From a capital-markets perspective, the sizes are small and unlikely to affect market dynamics or signal a material change in insider conviction. The disclosure is complete for the reported events and properly executed via power of attorney.

Corporate Governance Expert

TL;DR: Transactions are routine Section 16 reporting by an officer; filings appear procedurally correct.

The Form 4 identifies the reporting person’s role and relationship to the issuer and records both a contemporaneous sale and purchase reported within required timelines. The filing notes inclusion of time-based vested shares in ownership totals and documents price calculations. There are no indications of late reporting or gaps in required detail based on the provided content.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Ni Ping

(Last) (First) (Middle)

8550 MOSLEY ROAD

(Street)

HOUSTON TX 77075

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
POWELL INDUSTRIES INC [ POWL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Assistant Secretary/Treasurer

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/30/2025	09/30/2025	F		57	D	$301.28(1)	2,373(2)	D
Common Stock	10/01/2025	10/01/2025	A		100	A	$287.18(3)	2,473(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the average of the high and low stock price on 09/30/2025.

2. Includes shares that have a time-based vesting provision.

3. Represents the average closing stock price from September 1, 2025 - September 30, 2025.

Remarks:

	Michael W. Metcalf, Power of Attorney for Ping Ni	10/01/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transactions did Ni Ping report on the Form 4 for POWL?

The Form 4 reports a sale of 57 shares on 09/30/2025 at an average price of $301.28 and an acquisition of 100 shares on 10/01/2025 at an average price of $287.18.

How many Powell Industries (POWL) shares does Ni Ping beneficially own after these transactions?

Following the sale on 09/30/2025 she held 2,373 shares; after the purchase on 10/01/2025 she held 2,473 shares, reported as direct ownership.

What is Ni Ping’s role at Powell Industries as stated on the filing?

The filing lists Ni Ping as an Assistant Secretary/Treasurer and indicates she is an officer and director-level reporting person.

Who signed the Form 4 and when was it signed?

The Form 4 was signed by Michael W. Metcalf as Power of Attorney for Ni Ping on 10/01/2025.

How were the reported per-share prices calculated on the Form 4?

The $301.28 price is the average of the high and low on 09/30/2025; the $287.18 price is the average closing stock price for September 1–30, 2025.