Richard E. Williams - 14 May 2026 Form 4 Insider Report for POWELL INDUSTRIES INC (POWL)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
15 May 2026, 16:21:42 UTC
Prior SEC filing
19 Feb 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
Michael W. Metcalf, Power of Attorney for Richard E. Williams

Key filing fact

Richard E. Williams filed Form 4 for POWELL INDUSTRIES INC (POWL) on 15 May 2026.

Key facts

  • This page summarizes Richard E. Williams's Form 4 filing for POWELL INDUSTRIES INC (POWL).
  • 3 reported transactions and 0 derivative rows are listed below.
  • Accepted by SEC: 15 May 2026, 16:21.

Change

  • Previous filing in this sequence was filed on 19 Feb 2026.
  • Current net transaction value: -$1,570,741.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001668421 Primary reporting owner

Williams Richard E

Relationship
Director
Address
8550 MOSLEY ROAD, HOUSTON
Signature
Michael W. Metcalf, Power of Attorney for Richard E. Williams
Signature date
15 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

POWL transaction

Common Stock

Sale

Transaction value
$1,306,106
Shares
-4,370
Change %
-9.7%
Price
$298.88
Shares after
40,510
Date
14 May 2026
Ownership
Direct
Footnotes
F1, F2, F3, F4
POWL transaction

Common Stock

Sale

Transaction value
$222,488
Shares
-740
Change %
-1.8%
Price
$300.66
Shares after
39,770
Date
14 May 2026
Ownership
Direct
Footnotes
F1, F3, F4, F5
POWL transaction

Common Stock

Sale

Transaction value
$42,147
Shares
-140
Change %
-0.35%
Price
$301.05
Shares after
39,630
Date
14 May 2026
Ownership
Direct
Footnotes
F1, F3, F4
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

The sales reported in this Form 4 were affected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 11, 2026.

Footnote F2

The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $298.88-299.00, 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.

Footnote F3

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.

Footnote F4

Includes shares that have a time-based vesting provision.

Footnote F5

The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $300.00-301.00, 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.

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