{"transactions":[{"id":4623592,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53508,"kind":"person","name":"Littlefield Barbara G.","position":1,"cik":"0001777725","reported_name":"Littlefield Barbara G.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-09-21T21:22:19.000Z","date":"2026-09-18","kind":"grant","planned":false,"acquired":true,"shares":1607,"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 connection with Ms. Littlefield's departure from the Company's Board 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 37,034 shares directly."}],"balance_after":37034,"source":{"system":"sec-edgar","filing":"0001193125-26-396831","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1777725/000119312526396831/ownership.xml","form_type":"4"}},{"id":813883,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53508,"kind":"person","name":"Littlefield Barbara G.","position":1,"cik":"0001777725","reported_name":"Littlefield Barbara G.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-07T21:40:15.000Z","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 35,427 shares directly."}],"balance_after":35427,"source":{"system":"sec-edgar","filing":"0001193125-26-145803","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000119312526145803/ownership.xml","form_type":"4"}},{"id":1178141,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53508,"kind":"person","name":"Littlefield Barbara G.","position":1,"cik":"0001777725","reported_name":"Littlefield Barbara G.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-04-04T20:34:56.000Z","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 32,311 shares directly."}],"balance_after":32311,"source":{"system":"sec-edgar","filing":"0000950170-25-051187","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000095017025051187/ownership.xml","form_type":"4"}},{"id":1548157,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53508,"kind":"person","name":"Littlefield Barbara G.","position":1,"cik":"0001777725","reported_name":"Littlefield Barbara G.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-04-04T21:21:50.000Z","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 29,672 shares directly."}],"balance_after":29672,"source":{"system":"sec-edgar","filing":"0000950170-24-041901","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000095017024041901/ownership.xml","form_type":"4"}},{"id":1923272,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53508,"kind":"person","name":"Littlefield Barbara G.","position":1,"cik":"0001777725","reported_name":"Littlefield Barbara G.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-04-07T20:13:03.000Z","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 25,832 shares directly."}],"balance_after":25832,"source":{"system":"sec-edgar","filing":"0001209191-23-023766","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919123023766/doc4.xml","form_type":"4"}},{"id":2302981,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53508,"kind":"person","name":"Littlefield Barbara G.","position":1,"cik":"0001777725","reported_name":"Littlefield Barbara G.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-04-06T21:33:56.000Z","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 14,205 shares directly."}],"balance_after":14205,"source":{"system":"sec-edgar","filing":"0001209191-22-023530","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919122023530/doc4.xml","form_type":"4"}},{"id":2754894,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53508,"kind":"person","name":"Littlefield Barbara G.","position":1,"cik":"0001777725","reported_name":"Littlefield Barbara G.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-04-07T17:30:09.000Z","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 8,138 shares directly."}],"balance_after":8138,"source":{"system":"sec-edgar","filing":"0001209191-21-025805","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919121025805/doc4.xml","form_type":"4"}},{"id":3181164,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53508,"kind":"person","name":"Littlefield Barbara G.","position":1,"cik":"0001777725","reported_name":"Littlefield Barbara G.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-04-07T19:32:31.000Z","date":"2020-04-03","kind":"grant","acquired":true,"shares":6065,"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 6,065 shares directly."}],"balance_after":6065,"source":{"system":"sec-edgar","filing":"0001209191-20-023747","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919120023747/doc4.xml","form_type":"4"}},{"id":3509389,"issuer":{"id":4752,"kind":"organization","name":"AMERICAN SUPERCONDUCTOR CORP /DE/","symbol":"AMSC"},"owners":[{"id":53508,"kind":"person","name":"Littlefield Barbara G.","position":1,"cik":"0001777725","reported_name":"Littlefield Barbara G.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Options (Right to Buy)","published_at":"2019-05-29T21:35:14.000Z","date":"2019-05-24","kind":"grant","acquired":true,"shares":5939,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests in two equal annual installments beginning May 24, 2020."}],"balance_after":5939,"derivative":{"exercise_price":10.68,"expiration_date":"2029-05-24","underlying":"Common Stock","underlying_shares":5939},"source":{"system":"sec-edgar","filing":"0001209191-19-033254","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/880807/000120919119033254/doc4.xml","form_type":"4"}}]}