[Form 4] POWELL INDUSTRIES INC Insider Trading Activity

Rhea-AI Filing Summary

Powell Industries executive vice president Michael William Metcalf reported open-market sales of 3,000 shares of Powell Industries common stock on March 31, 2026. The shares were sold in 20 separate transactions at prices ranging from about $510 to $541 per share.

These transactions were executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 2, 2025. Following the sales, Metcalf directly holds 27,800 shares of Powell Industries common stock, and the filing notes that some of these shares have a time-based vesting provision.

Insider Trade Summary 10b5-1

Net Seller: 3,000 shares ($1,583,988)

Net Sell 20 txns

Insider METCALF MICHAEL WILLIAM

Role Exec Vice President

Sold 3,000 shs ($1.58M)

Type	Security	Shares	Price	Value
Sale	Common Stock	40	$510.16	$20K
Sale	Common Stock	80	$511.76	$41K
Sale	Common Stock	80	$513.07	$41K
Sale	Common Stock	140	$516.09	$72K
Sale	Common Stock	162	$517.35	$84K
Sale	Common Stock	202	$518.67	$105K
Sale	Common Stock	240	$519.47	$125K
Sale	Common Stock	200	$520.85	$104K
Sale	Common Stock	204	$522.15	$107K
Sale	Common Stock	120	$522.88	$63K
Sale	Common Stock	40	$528.67	$21K
Sale	Common Stock	40	$530.81	$21K
Sale	Common Stock	40	$532.74	$21K
Sale	Common Stock	120	$534.62	$64K
Sale	Common Stock	240	$535.81	$129K
Sale	Common Stock	393	$536.81	$211K
Sale	Common Stock	200	$537.51	$108K
Sale	Common Stock	234	$539.07	$126K
Sale	Common Stock	175	$540.19	$95K
Sale	Common Stock	50	$541.43	$27K

Holdings After Transaction: Common Stock — 30,760 shares (Direct)

Footnotes (1)

1. The sales reported in this Form 4 were affected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025. Includes shares that have a time-based vesting provision. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $511.75-$511.76, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $513.04-$513.09, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $515.68-$516.55, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $517.12-$517.78, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $518.27-$519.26, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $519.31-$519.93, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $520.36-$521.30, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $521.68-$522.65, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $522.72-$523.00, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $534.09-$534.95, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $535.26-$536.06, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $536.37-$537.20, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $537.45-$537.61, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $538.83-$539.83, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $539.89-$540.57, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $541.18-$541.56, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

Form 4 Insider Transactions: What Each Field Means →

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).

X

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^*

METCALF MICHAEL WILLIAM

(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)
	Exec Vice President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

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	03/31/2026	03/31/2026	S		40(1)	D	$510.16	30,760(2)	D
Common Stock	03/31/2026	03/31/2026	S		80(1)	D	$511.76(3)	30,680(2)	D
Common Stock	03/31/2026	03/31/2026	S		80(1)	D	$513.07(4)	30,600(2)	D
Common Stock	03/31/2026	03/31/2026	S		140(1)	D	$516.09(5)	30,460(2)	D
Common Stock	03/31/2026	03/31/2026	S		162(1)	D	$517.35(6)	30,298(2)	D
Common Stock	03/31/2026	03/31/2026	S		202(1)	D	$518.67(7)	30,096(2)	D
Common Stock	03/31/2026	03/31/2026	S		240(1)	D	$519.47(8)	29,856(2)	D
Common Stock	03/31/2026	03/31/2026	S		200(1)	D	$520.85(9)	29,656(2)	D
Common Stock	03/31/2026	03/31/2026	S		204(1)	D	$522.15(10)	29,452(2)	D
Common Stock	03/31/2026	03/31/2026	S		120(1)	D	$522.88(11)	29,332(2)	D
Common Stock	03/31/2026	03/31/2026	S		40(1)	D	$528.67	29,292(2)	D
Common Stock	03/31/2026	03/31/2026	S		40(1)	D	$530.81	29,252(2)	D
Common Stock	03/31/2026	03/31/2026	S		40(1)	D	$532.74	29,212(2)	D
Common Stock	03/31/2026	03/31/2026	S		120(1)	D	$534.62(12)	29,092(2)	D
Common Stock	03/31/2026	03/31/2026	S		240(1)	D	$535.81(13)	28,852(2)	D
Common Stock	03/31/2026	03/31/2026	S		393(1)	D	$536.81(14)	28,459(2)	D
Common Stock	03/31/2026	03/31/2026	S		200(1)	D	$537.51(15)	28,259(2)	D
Common Stock	03/31/2026	03/31/2026	S		234(1)	D	$539.07(16)	28,025(2)	D
Common Stock	03/31/2026	03/31/2026	S		175(1)	D	$540.19(17)	27,850(2)	D
Common Stock	03/31/2026	03/31/2026	S		50(1)	D	$541.43(18)	27,800(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. The sales reported in this Form 4 were affected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025.

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

3. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $511.75-$511.76, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

4. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $513.04-$513.09, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

5. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $515.68-$516.55, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

6. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $517.12-$517.78, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

7. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $518.27-$519.26, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

8. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $519.31-$519.93, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

9. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $520.36-$521.30, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

10. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $521.68-$522.65, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

11. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $522.72-$523.00, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

12. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $534.09-$534.95, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

13. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $535.26-$536.06, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

14. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $536.37-$537.20, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

15. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $537.45-$537.61, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

16. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $538.83-$539.83, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

17. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $539.89-$540.57, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

18. The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $541.18-$541.56, inclusive. Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities & Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.

Remarks:

	Michael W. Metcalf	04/01/2026
	** 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)