person · Reporting owner
Mauney William Marshall Jr
Disclosed activity across 1 company
Sign in to followReported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| POWELL INDUSTRIES INCPOWL · Entity 3765 | Vice President, R&D | September 30, 2026 | October 03, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
POWELL INDUSTRIES INC
Report date September 30, 2026 · Filed October 03, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 11,077 |
Last balance in matching sequence
After 2026-10-01 transaction · row 2
Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rowsRow 1 · 2026-09-30 · Sale · Disposed 301 · Balance 10,552 F1: Represents the average of the high and low stock price on 09/30/2026. F2: Includes shares that have a time-based vesting provision. 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. Row 2 · 2026-10-01 · Grant · Acquired 525 · Balance 11,077 F4: Represents the average closing stock price from September 1, 2026 - September 30, 2026. F2: Includes shares that have a time-based vesting provision. 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. |
Filing footnotes · ownership attribution and instrument terms
F1: Represents the average of the high and low stock price on 09/30/2026.
F2: Includes shares that have a time-based vesting provision.
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.
F4: Represents the average closing stock price from September 1, 2026 - September 30, 2026.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| October 01, 2026 Filed Oct 3, 2026 00:41 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | GrantCommon Stock | 525 | $181.67 | $95,376.75 |
DisclosureSEC source: 0000080420-26-000131 · wk-form4_1790973660.xml · nonDerivative · entry 2 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,077 F4 · price: Represents the average closing stock price from September 1, 2026 - September 30, 2026. F2 · balance_after: Includes shares that have a time-based vesting provision. F3 · balance_after: 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. Read SEC document |
| September 30, 2026 Filed Oct 3, 2026 00:41 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 301 | $187.67 | $56,488.67 |
DisclosureSEC source: 0000080420-26-000131 · wk-form4_1790973660.xml · nonDerivative · entry 1 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,552 F1 · price: Represents the average of the high and low stock price on 09/30/2026. F2 · balance_after: Includes shares that have a time-based vesting provision. F3 · balance_after: 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. Read SEC document |
| May 11, 2026 Filed May 13, 2026 20:14 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 9 | $327.69 | $2,949.21 |
DisclosureSEC source: 0000080420-26-000072 · wk-form4_1778703249.xml · nonDerivative · entry 7 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,853 F9 · price: The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $327.68-$327.71, 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. F2 · balance_after: Includes shares that have a time-based vesting provision. F3 · balance_after: 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. Read SEC document |
| May 11, 2026 Filed May 13, 2026 20:14 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 66 | $327.06 | $21,585.96 |
DisclosureSEC source: 0000080420-26-000072 · wk-form4_1778703249.xml · nonDerivative · entry 6 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,862 F8 · price: The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $326.66-$327.45, 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. F2 · balance_after: Includes shares that have a time-based vesting provision. F3 · balance_after: 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. Read SEC document |
| May 11, 2026 Filed May 13, 2026 20:14 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 623 | $325.97 | $203,079.31 |
DisclosureSEC source: 0000080420-26-000072 · wk-form4_1778703249.xml · nonDerivative · entry 5 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,928 F7 · price: The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $325.44-$326.54, 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. F2 · balance_after: Includes shares that have a time-based vesting provision. F3 · balance_after: 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. Read SEC document |
| May 11, 2026 Filed May 13, 2026 20:14 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 313 | $324.87 | $101,684.31 |
DisclosureSEC source: 0000080420-26-000072 · wk-form4_1778703249.xml · nonDerivative · entry 4 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,551 F6 · price: The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $324.47-$325.10, 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. F2 · balance_after: Includes shares that have a time-based vesting provision. F3 · balance_after: 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. Read SEC document |
| May 11, 2026 Filed May 13, 2026 20:14 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 176 | $323.82 | $56,992.32 |
DisclosureSEC source: 0000080420-26-000072 · wk-form4_1778703249.xml · nonDerivative · entry 3 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,864 F5 · price: The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $323.44-$324.39, 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. F2 · balance_after: Includes shares that have a time-based vesting provision. F3 · balance_after: 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. Read SEC document |
| May 11, 2026 Filed May 13, 2026 20:14 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 386 | $322.70 | $124,562.20 |
DisclosureSEC source: 0000080420-26-000072 · wk-form4_1778703249.xml · nonDerivative · entry 2 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,040 F4 · price: The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $322.43-$323.40, 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. F2 · balance_after: Includes shares that have a time-based vesting provision. F3 · balance_after: 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. Read SEC document |
| May 11, 2026 Filed May 13, 2026 20:14 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 927 | $321.86 | $298,364.22 |
DisclosureSEC source: 0000080420-26-000072 · wk-form4_1778703249.xml · nonDerivative · entry 1 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,426 F1 · price: The price reported in Column 4 is an average price; shares were sold in multiple transactions. Reporting range is $321.39-$322.39, 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. F2 · balance_after: Includes shares that have a time-based vesting provision. F3 · balance_after: 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. Read SEC document |
| December 19, 2025 Filed Dec 22, 2025 21:03 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 3,000 | $331.73 | $995,190.00 |
DisclosureSEC source: 0000080420-25-000169 · wk-form4_1766437415.xml · nonDerivative · entry 1 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,451 F1 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
| December 01, 2025 Filed Dec 3, 2025 21:49 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | GrantCommon Stock | 3,000 | $315.03 | $945,090.00 |
DisclosureSEC source: 0000080420-25-000163 · wk-form4_1764798582.xml · nonDerivative · entry 1 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,451 F1 · shares: Shares granted under the Company's long-term equity compensation plan (performance-vesting restricted stock unit agreement). F2 · price: Represents the average of the high and low stock price on 12/01/2025. F3 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
| October 01, 2025 Filed Oct 1, 2025 21:07 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | GrantCommon Stock | 300 | $287.18 | $86,154.00 |
DisclosureSEC source: 0000080420-25-000128 · wk-form4_1759352846.xml · nonDerivative · entry 2 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,451 F3 · price: Represents the average closing stock price from September 1, 2025 - September 30, 2025. F2 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
| September 30, 2025 Filed Oct 1, 2025 21:07 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | Tax withholdingCommon Stock | 466 | $301.28 | $140,396.48 |
DisclosureSEC source: 0000080420-25-000128 · wk-form4_1759352846.xml · nonDerivative · entry 1 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,151 F1 · price: Represents the average of the high and low stock price on 09/30/2025. F2 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
| September 05, 2025 Filed Sep 9, 2025 20:14 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | Tax withholdingCommon Stock | 770 | $266.80 | $205,436.00 |
DisclosureSEC source: 0000080420-25-000111 · wk-form4_1757448870.xml · nonDerivative · entry 1 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,617 F1 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
| December 04, 2024 Filed Dec 6, 2024 19:48 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 300 | $287.08 | $86,124.00 |
DisclosureSEC source: 0000080420-24-000095 · wk-form4_1733514524.xml · nonDerivative · entry 2 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,387 F1 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
| December 04, 2024 Filed Dec 6, 2024 19:48 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 700 | $282.91 | $198,037.00 |
DisclosureSEC source: 0000080420-24-000095 · wk-form4_1733514524.xml · nonDerivative · entry 1 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,687 F1 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
| October 01, 2024 Filed Oct 2, 2024 22:00 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | GrantCommon Stock | 400 | $182.14 | $72,856.00 |
DisclosureSEC source: 0000080420-24-000072 · wk-form4_1727906448.xml · nonDerivative · entry 2 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,387 F3 · price: Represents the average closing stock price from September 1, 2024 - September 30, 2024. F2 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
| September 30, 2024 Filed Oct 2, 2024 22:00 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | Tax withholdingCommon Stock | 433 | $221.11 | $95,740.63 |
DisclosureSEC source: 0000080420-24-000072 · wk-form4_1727906448.xml · nonDerivative · entry 1 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,987 F1 · price: Represents the average of the high and low stock price on 09/30/2024. F2 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
| September 06, 2024 Filed Sep 10, 2024 20:20 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | Tax withholdingCommon Stock | 770 | $0.00 | $0.00 |
DisclosureSEC source: 0000080420-24-000066 · wk-form4_1725999626.xml · nonDerivative · entry 1 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,420 F1 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
| August 15, 2024 Filed Aug 19, 2024 20:33 UTC | POWELL INDUSTRIES INC POWL · Entity 3765 | SaleCommon Stock | 150 | $163.76 | $24,564.00 |
DisclosureSEC source: 0000080420-24-000062 · wk-form4_1724099627.xml · nonDerivative · entry 1 Mauney William Marshall Jr · CIK 0002025220 · Vice President, R&D 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,190 F1 · balance_after: Includes shares that have a time-based vesting provision. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.