{"transactions":[{"id":813884,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-07T21:42:50.000Z","date":"2026-04-03","kind":"grant","planned":false,"acquired":true,"shares":3116,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This award of immediately vested shares of American Superconductor Corporation (the \"Company\") common stock was made in accordance with the Company's Amended and Restated 2007 Director Stock Plan, as Amended."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 63,823 shares directly."}],"balance_after":63823,"source":{"system":"sec-edgar","filing":"0001193125-26-145810","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000119312526145810/ownership.xml","form_type":"4"}},{"id":880688,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-26T22:13:45.000Z","date":"2026-02-24","kind":"sale","planned":false,"acquired":false,"shares":200,"price":34.1,"value":6820.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were made by the reporting person for tax planning purposes."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 60,707 shares directly."}],"balance_after":60707,"source":{"system":"sec-edgar","filing":"0001193125-26-077349","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000119312526077349/ownership.xml","form_type":"4"}},{"id":1000974,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-11-13T21:49:08.000Z","date":"2019-06-18","kind":"purchase","planned":false,"acquired":true,"shares":200,"price":8.33,"value":1666.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Following all the transactions reported on this Form 4, the reporting person holds 60,907 shares directly."}],"balance_after":60907,"source":{"system":"sec-edgar","filing":"0001193125-25-280371","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000119312525280371/ownership.xml","form_type":"4"}},{"id":1178140,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-04-04T20:36:46.000Z","date":"2025-04-03","kind":"grant","planned":false,"acquired":true,"shares":2639,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This award of immediately vested shares of American Superconductor Corporation (the \"Company\") common stock was made in accordance with the Company's Amended and Restated 2007 Director Stock Plan, as Amended."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 60,707 shares directly."}],"balance_after":60707,"source":{"system":"sec-edgar","filing":"0000950170-25-051189","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000095017025051189/ownership.xml","form_type":"4"}},{"id":1548158,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-04-04T21:19:53.000Z","date":"2024-04-03","kind":"grant","planned":false,"acquired":true,"shares":3840,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This award of immediately vested shares of American Superconductor Corporation (the \"Company\") common stock was made in accordance with the Company's Amended and Restated 2007 Director Stock Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 58,068 shares directly."}],"balance_after":58068,"source":{"system":"sec-edgar","filing":"0000950170-24-041899","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000095017024041899/ownership.xml","form_type":"4"}},{"id":1923271,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-04-07T20:09:51.000Z","date":"2023-04-05","kind":"grant","planned":false,"acquired":true,"shares":11627,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This award of immediately vested shares of American Superconductor Corporation (the \"Company\") common stock was made in accordance with the Company's Amended and Restated 2007 Director Stock Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 54,228 shares directly."}],"balance_after":54228,"source":{"system":"sec-edgar","filing":"0001209191-23-023763","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919123023763/doc4.xml","form_type":"4"}},{"id":2302982,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-04-06T21:35:21.000Z","date":"2022-04-05","kind":"grant","acquired":true,"shares":6067,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This award of immediately vested shares of American Superconductor Corporation (the \"Company\") common stock was made in accordance with the Company's Amended and Restated 2007 Director Stock Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 42,601 shares directly."}],"balance_after":42601,"source":{"system":"sec-edgar","filing":"0001209191-22-023532","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919122023532/doc4.xml","form_type":"4"}},{"id":2754895,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-04-07T17:31:45.000Z","date":"2021-04-05","kind":"grant","acquired":true,"shares":2073,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This award of immediately vested shares of American Superconductor Corporation (the \"Company\") common stock was made in accordance with the Company's Amended and Restated 2007 Director Stock Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 36,534 shares directly."}],"balance_after":36534,"source":{"system":"sec-edgar","filing":"0001209191-21-025808","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919121025808/doc4.xml","form_type":"4"}},{"id":3181163,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-04-07T19:36:09.000Z","date":"2020-04-03","kind":"grant","acquired":true,"shares":7092,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This award of immediately vested shares of American Superconductor Corporation (the \"Company\") common stock was made in accordance with the Company's Amended and Restated 2007 Director Stock Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 34,461 shares directly."}],"balance_after":34461,"source":{"system":"sec-edgar","filing":"0001209191-20-023750","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919120023750/doc4.xml","form_type":"4"}},{"id":3563334,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-04-04T20:54:30.000Z","date":"2019-04-03","kind":"grant","acquired":true,"shares":3152,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This award of immediately vested shares of AMSC stock was made in accordance with the 2007 Director Stock Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 27,369 shares directly."}],"balance_after":27369,"source":{"system":"sec-edgar","filing":"0001209191-19-023668","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919119023668/doc4.xml","form_type":"4"}},{"id":3968005,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-04-06T18:32:34.000Z","date":"2018-04-04","kind":"grant","acquired":true,"shares":6896,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This award of immediately vested shares of AMSC stock was made in accordance with the 2007 Director Stock Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 24,217 shares directly."}],"balance_after":24217,"source":{"system":"sec-edgar","filing":"0001209191-18-024177","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919118024177/doc4.xml","form_type":"4"}},{"id":4356375,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-04-07T20:40:35.000Z","date":"2017-04-05","kind":"grant","acquired":true,"shares":6042,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This grant was made in accordance with the 2007 Director Stock Plan"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Following all the transactions reported on this Form 4, the reporting person holds 17,321 shares directly."}],"balance_after":17321,"source":{"system":"sec-edgar","filing":"0001209191-17-026279","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919117026279/doc4.xml","form_type":"4"}},{"id":4517751,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53509,"kind":"person","name":"OLIVER DAVID R JR","position":1,"cik":"0001376216","reported_name":"OLIVER DAVID R JR","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2016-12-19T21:19:16.000Z","date":"2016-12-15","kind":"sale","acquired":false,"shares":2200,"price":7.953,"value":17496.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were made by Mr. Oliver for tax planning purposes."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The disposition transaction was executed in muliple trades at prices ranging from $7.9314-$7.972. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and price at which the transaction was effected."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Following all the transactions reported on this Form 4, the reporting person holds 11,279 shares directly."}],"balance_after":11279,"source":{"system":"sec-edgar","filing":"0001209191-16-155900","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919116155900/doc4.xml","form_type":"4"}}]}