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Reporting range is $287.16-$287.96, 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares that have a time-based vesting provision."}],"balance_after":78900,"source":{"system":"sec-edgar","filing":"0000080420-26-000091","document":"wk-form4_1782937230.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000091/wk-form4_1782937230.xml","form_type":"4"}},{"id":722359,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-07-01T20:20:33.000Z","date":"2026-06-30","kind":"sale","planned":true,"acquired":false,"shares":1235,"price":286.52,"value":353852.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is an average price; shares were sold in multiple transactions.  Reporting range is $286.14-$287.14, 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares that have a time-based vesting provision."}],"balance_after":79399,"source":{"system":"sec-edgar","filing":"0000080420-26-000091","document":"wk-form4_1782937230.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000091/wk-form4_1782937230.xml","form_type":"4"}},{"id":722358,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-07-01T20:20:33.000Z","date":"2026-06-30","kind":"sale","planned":true,"acquired":false,"shares":697,"price":285.66,"value":199105.02,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is an average price; shares were sold in multiple transactions.  Reporting range is $285.12-$286.12, 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares that have a time-based vesting provision."}],"balance_after":80634,"source":{"system":"sec-edgar","filing":"0000080420-26-000091","document":"wk-form4_1782937230.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000091/wk-form4_1782937230.xml","form_type":"4"}},{"id":722357,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-07-01T20:20:33.000Z","date":"2026-06-30","kind":"sale","planned":true,"acquired":false,"shares":471,"price":284.29,"value":133900.59,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is an average price; shares were sold in multiple transactions.  Reporting range is $284.11-$283.09, 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares that have a time-based vesting provision."}],"balance_after":81331,"source":{"system":"sec-edgar","filing":"0000080420-26-000091","document":"wk-form4_1782937230.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000091/wk-form4_1782937230.xml","form_type":"4"}},{"id":722356,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-07-01T20:20:33.000Z","date":"2026-06-30","kind":"sale","planned":true,"acquired":false,"shares":405,"price":283.34,"value":114752.7,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is an average price; shares were sold in multiple transactions.  Reporting range is $283.08-$283.98, 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares that have a time-based vesting provision."}],"balance_after":81802,"source":{"system":"sec-edgar","filing":"0000080420-26-000091","document":"wk-form4_1782937230.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000091/wk-form4_1782937230.xml","form_type":"4"}},{"id":722355,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-07-01T20:20:33.000Z","date":"2026-06-30","kind":"sale","planned":true,"acquired":false,"shares":387,"price":282.45,"value":109308.15,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is an average price; shares were sold in multiple transactions.  Reporting range is $281.95-$282.88, 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares that have a time-based vesting provision."}],"balance_after":82207,"source":{"system":"sec-edgar","filing":"0000080420-26-000091","document":"wk-form4_1782937230.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000091/wk-form4_1782937230.xml","form_type":"4"}},{"id":722354,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-07-01T20:20:33.000Z","date":"2026-06-30","kind":"sale","planned":true,"acquired":false,"shares":619,"price":281.22,"value":174075.18,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is an average price; shares were sold in multiple transactions.  Reporting range is $280.74-$281.52, 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares that have a time-based vesting provision."}],"balance_after":82594,"source":{"system":"sec-edgar","filing":"0000080420-26-000091","document":"wk-form4_1782937230.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000091/wk-form4_1782937230.xml","form_type":"4"}},{"id":722353,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-07-01T20:20:33.000Z","date":"2026-06-30","kind":"sale","planned":true,"acquired":false,"shares":187,"price":280.05,"value":52369.35,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average price; shares were sold in multiple transactions.  Reporting range is $279.73-$280.69, 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares that have a time-based vesting provision."}],"balance_after":83213,"source":{"system":"sec-edgar","filing":"0000080420-26-000091","document":"wk-form4_1782937230.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000091/wk-form4_1782937230.xml","form_type":"4"}},{"id":725059,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":35042,"kind":"person","name":"HOGLUND PETER G","position":1,"cik":"0002028888","reported_name":"HOGLUND PETER G","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Pres, Global Service"}}],"security":"Common Stock","published_at":"2026-06-29T22:08:20.000Z","date":"2026-06-26","kind":"tax_withholding","planned":false,"acquired":false,"shares":585,"price":287.69,"value":168298.65,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":5394,"source":{"system":"sec-edgar","filing":"0000080420-26-000089","document":"wk-form4_1782770897.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000089/wk-form4_1782770897.xml","form_type":"4"}},{"id":726062,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":35302,"kind":"person","name":"POWELL THOMAS W","position":1,"cik":"0001219199","reported_name":"POWELL THOMAS W","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-06-26T21:57:50.000Z","date":"2026-06-25","kind":"sale","planned":false,"acquired":false,"shares":33958,"price":294.49,"value":10000291.42,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The reporting person contributed 33,958 shares of POWL common stock to an exchange fund in exchange for shares of the exchange fund. 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affected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 26, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."}],"balance_after":490113,"source":{"system":"sec-edgar","filing":"0000080420-26-000076","document":"wk-form4_1778876587.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000076/wk-form4_1778876587.xml","form_type":"4"}},{"id":778394,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":23160,"kind":"person","name":"Williams Richard 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provision."}],"balance_after":39630,"source":{"system":"sec-edgar","filing":"0000080420-26-000074","document":"wk-form4_1778876500.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000074/wk-form4_1778876500.xml","form_type":"4"}},{"id":778393,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":23160,"kind":"person","name":"Williams Richard E","position":1,"cik":"0001668421","reported_name":"Williams Richard E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-15T20:21:42.000Z","date":"2026-05-14","kind":"sale","planned":false,"acquired":false,"shares":740,"price":300.66,"value":222488.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares that have a time-based vesting provision."}],"balance_after":39770,"source":{"system":"sec-edgar","filing":"0000080420-26-000074","document":"wk-form4_1778876500.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000074/wk-form4_1778876500.xml","form_type":"4"}},{"id":778392,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":23160,"kind":"person","name":"Williams Richard E","position":1,"cik":"0001668421","reported_name":"Williams Richard E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-15T20:21:42.000Z","date":"2026-05-14","kind":"sale","planned":false,"acquired":false,"shares":4370,"price":298.88,"value":1306105.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares that have a time-based vesting provision."}],"balance_after":40510,"source":{"system":"sec-edgar","filing":"0000080420-26-000074","document":"wk-form4_1778876500.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000074/wk-form4_1778876500.xml","form_type":"4"}},{"id":781763,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":47844,"kind":"person","name":"Mauney William Marshall Jr","position":1,"cik":"0002025220","reported_name":"Mauney William Marshall Jr","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President, R&D"}}],"security":"Common Stock","published_at":"2026-05-13T20:14:13.000Z","date":"2026-05-11","kind":"sale","planned":false,"acquired":false,"shares":9,"price":327.69,"value":2949.21,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."}],"balance_after":10853,"source":{"system":"sec-edgar","filing":"0000080420-26-000072","document":"wk-form4_1778703249.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000072/wk-form4_1778703249.xml","form_type":"4"}},{"id":781762,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":47844,"kind":"person","name":"Mauney William Marshall Jr","position":1,"cik":"0002025220","reported_name":"Mauney William Marshall Jr","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President, R&D"}}],"security":"Common Stock","published_at":"2026-05-13T20:14:13.000Z","date":"2026-05-11","kind":"sale","planned":false,"acquired":false,"shares":66,"price":327.06,"value":21585.96,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."}],"balance_after":10862,"source":{"system":"sec-edgar","filing":"0000080420-26-000072","document":"wk-form4_1778703249.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000072/wk-form4_1778703249.xml","form_type":"4"}},{"id":781761,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":47844,"kind":"person","name":"Mauney William Marshall Jr","position":1,"cik":"0002025220","reported_name":"Mauney William Marshall Jr","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President, R&D"}}],"security":"Common Stock","published_at":"2026-05-13T20:14:13.000Z","date":"2026-05-11","kind":"sale","planned":false,"acquired":false,"shares":623,"price":325.97,"value":203079.31,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."}],"balance_after":10928,"source":{"system":"sec-edgar","filing":"0000080420-26-000072","document":"wk-form4_1778703249.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000072/wk-form4_1778703249.xml","form_type":"4"}},{"id":781760,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":47844,"kind":"person","name":"Mauney William Marshall Jr","position":1,"cik":"0002025220","reported_name":"Mauney William Marshall Jr","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President, R&D"}}],"security":"Common Stock","published_at":"2026-05-13T20:14:13.000Z","date":"2026-05-11","kind":"sale","planned":false,"acquired":false,"shares":313,"price":324.87,"value":101684.31,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."}],"balance_after":11551,"source":{"system":"sec-edgar","filing":"0000080420-26-000072","document":"wk-form4_1778703249.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000072/wk-form4_1778703249.xml","form_type":"4"}},{"id":781759,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":47844,"kind":"person","name":"Mauney William Marshall Jr","position":1,"cik":"0002025220","reported_name":"Mauney William Marshall Jr","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President, R&D"}}],"security":"Common Stock","published_at":"2026-05-13T20:14:13.000Z","date":"2026-05-11","kind":"sale","planned":false,"acquired":false,"shares":176,"price":323.82,"value":56992.32,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."}],"balance_after":11864,"source":{"system":"sec-edgar","filing":"0000080420-26-000072","document":"wk-form4_1778703249.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000072/wk-form4_1778703249.xml","form_type":"4"}},{"id":781758,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":47844,"kind":"person","name":"Mauney William Marshall Jr","position":1,"cik":"0002025220","reported_name":"Mauney William Marshall Jr","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President, R&D"}}],"security":"Common Stock","published_at":"2026-05-13T20:14:13.000Z","date":"2026-05-11","kind":"sale","planned":false,"acquired":false,"shares":386,"price":322.7,"value":124562.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."}],"balance_after":12040,"source":{"system":"sec-edgar","filing":"0000080420-26-000072","document":"wk-form4_1778703249.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000072/wk-form4_1778703249.xml","form_type":"4"}},{"id":781757,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":47844,"kind":"person","name":"Mauney William Marshall Jr","position":1,"cik":"0002025220","reported_name":"Mauney William Marshall Jr","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President, R&D"}}],"security":"Common Stock","published_at":"2026-05-13T20:14:13.000Z","date":"2026-05-11","kind":"sale","planned":false,"acquired":false,"shares":927,"price":321.86,"value":298364.22,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."}],"balance_after":12426,"source":{"system":"sec-edgar","filing":"0000080420-26-000072","document":"wk-form4_1778703249.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000072/wk-form4_1778703249.xml","form_type":"4"}},{"id":810034,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":23570,"kind":"person","name":"COPE BRETT ALAN","position":1,"cik":"0001663174","reported_name":"COPE BRETT ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-04-13T20:47:08.000Z","date":"2026-04-09","kind":"sale","planned":true,"acquired":false,"shares":4440,"price":233.96,"value":1038782.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were affected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 26, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average price; shares were sold in multiple transactions.  Reporting range is $233.81 - $233.98, 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes shares that have a time-based vesting provision."}],"balance_after":164851,"source":{"system":"sec-edgar","filing":"0000080420-26-000058","document":"wk-form4_1776113226.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000058/wk-form4_1776113226.xml","form_type":"4"}},{"id":822091,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":50,"price":541.43,"value":27071.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F18","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":27800,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822090,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":175,"price":540.19,"value":94533.25,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F17","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":27850,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822089,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":234,"price":539.07,"value":126142.38,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F16","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":28025,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822088,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":200,"price":537.51,"value":107502.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F15","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":28259,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822087,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":393,"price":536.81,"value":210966.33,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F14","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":28459,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822086,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":240,"price":535.81,"value":128594.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F13","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":28852,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822085,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":120,"price":534.62,"value":64154.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F12","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":29092,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822084,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL 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reported in this Form 4 were affected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":29252,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822082,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":40,"price":528.67,"value":21146.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":29292,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822081,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES 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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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":29332,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822080,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":204,"price":522.15,"value":106518.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":29452,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822079,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":200,"price":520.85,"value":104170.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":29656,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822078,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":240,"price":519.47,"value":124672.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":29856,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822077,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":202,"price":518.67,"value":104771.34,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":30096,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822076,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":162,"price":517.35,"value":83810.7,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":30298,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822075,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":140,"price":516.09,"value":72252.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":30460,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822074,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":80,"price":513.07,"value":41045.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares that have a time-based vesting provision."}],"balance_after":30600,"source":{"system":"sec-edgar","filing":"0000080420-26-000056","document":"wk-form4_1775160706.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/80420/000008042026000056/wk-form4_1775160706.xml","form_type":"4"}},{"id":822073,"issuer":{"id":3765,"kind":"organization","name":"POWELL INDUSTRIES INC"},"owners":[{"id":34333,"kind":"person","name":"METCALF MICHAEL WILLIAM","position":1,"cik":"0001760055","reported_name":"METCALF MICHAEL WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Exec Vice President"}}],"security":"Common Stock","published_at":"2026-04-02T20:11:50.000Z","date":"2026-03-31","kind":"sale","planned":true,"acquired":false,"shares":80,"price":511.76,"value":40940.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is an average price; shares were sold in multiple transactions.  Reporting range is $511.75-$511.76, inclusive.  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