Powell Industries: McKertcher acquires 600 shares

The operations vice president's reported share activity includes a split-adjusted 600-share award and a separate 700-share delivery or withholding entry.

Rhea-AI Filing Summary

Powell Industries Inc. (POWL) Vice President, Operations Terry B. McKertcher acquired 600 shares of common stock on October 1, 2026; the reported share count reflects the 3-for-1 forward split effected April 2, 2026. On September 30, 2026, 700 shares were delivered or withheld for payment of exercise price or tax liability. The entries list per-share figures of $181.6700 and $187.6700, respectively: the first represents the average closing stock price from September 1 through September 30, 2026, and the second represents the average of the high and low stock price on September 30, 2026.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider McKertcher Terry B

Role Vice President, Operations

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F3, F2, F4	600	$181.67	$109K
Exercise Price or Tax Liability	Common Stock F1, F2	700	$187.67	$131K

Holdings After Transaction: Common Stock — 13,199 shares (Direct)

Footnotes (4)

1. F1. Represents the average of the high and low stock price on 09/30/2026.
2. F2. Includes shares that have a time-based vesting provision.
3. F3. Represents the average closing stock price from September 1, 2026 - September 30, 2026.
4. F4. The reported number of shares have been adjusted to reflect the impact of the issuer's 3-for-1 forward split of its Common Stock effected on April 2, 2026.

Key Figures

Shares acquired: 600 shares Average closing stock price: $181.6700 per share Shares delivered or withheld: 700 shares +2 more

5 metrics

Shares acquired 600 shares October 1, 2026; reported count adjusted for the 3-for-1 forward split effected April 2, 2026

Average closing stock price $181.6700 per share Average closing stock price from September 1 through September 30, 2026, reported with the October 1 award

Shares delivered or withheld 700 shares September 30, 2026, for payment of exercise price or tax liability

Average of high and low stock price $187.6700 per share September 30, 2026

Forward split 3-for-1 Effected April 2, 2026

Key Terms

3-for-1 forward split, average closing stock price, average of the high and low stock price

3 terms

3-for-1 forward split financial

"issuer's 3-for-1 forward split of its Common Stock effected on April 2, 2026"

average closing stock price financial

"Represents the average closing stock price from September 1, 2026 - September 30, 2026."

average of the high and low stock price financial

"Represents the average of the high and low stock price on 09/30/2026."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many shares did Terry B. McKertcher acquire in the POWL report?

Terry B. McKertcher, Vice President, Operations, acquired 600 common shares on October 1, 2026. The reported share count reflects the 3-for-1 forward split effected April 2, 2026. The entry lists $181.6700 per share, representing the average closing stock price from September 1 through September 30, 2026.

Why were 700 POWL shares delivered or withheld?

On September 30, 2026, Terry B. McKertcher reported 700 shares delivered or withheld for payment of exercise price or tax liability. The entry lists $187.6700 per share, representing the average of the high and low stock price on that date.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/02/2026 - 04:32 PM Accepted by SEC EDGAR 10/02/2026 - 04:31 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

McKertcher Terry B

(Last) (First) (Middle)

8550 MOSLEY ROAD

(Street)

HOUSTON TEXAS 77075

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	Vice President, Operations

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2026

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

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

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

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	09/30/2026	10/01/2026	F		700	D	$187.67(1)	12,599(2)	D
Common Stock	10/01/2026	10/01/2026	A		600	A	$181.67(3)	13,199(2)(4)	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 09/30/2026.

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

3. Represents the average closing stock price from September 1, 2026 - September 30, 2026.

4. The reported number of shares have been adjusted to reflect the impact of the issuer's 3-for-1 forward split of its Common Stock effected on April 2, 2026.

Remarks:

	Michael W. Metcalf, Power of Attorney for Terry B. McKertcher	10/02/2026
	** 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.
* Form 4: SEC 1474 (03-26)