Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| AMERICAN SUPERCONDUCTOR CORP /DE/AMSC · Entity 4752 | Director | April 03, 2026 | April 07, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
AMERICAN SUPERCONDUCTOR CORP /DE/
Report date April 03, 2026 · Filed April 07, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 63,823 |
Reported balance
After 2026-04-03 transaction · row 1
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 1 · 2026-04-03 · Grant · Acquired 3,116 · Balance 63,823 F1: 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. F2: Following all the transactions reported on this Form 4, the reporting person holds 63,823 shares directly. |
Filing footnotes · ownership attribution and instrument terms
F1: 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.
F2: Following all the transactions reported on this Form 4, the reporting person holds 63,823 shares directly.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| April 03, 2026 Filed Apr 7, 2026 21:42 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | GrantCommon Stock | 3,116 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-145810 · ownership.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 63,823 F1 · date: 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. F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 63,823 shares directly. Read SEC document |
| February 24, 2026 Filed Feb 26, 2026 22:13 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | SaleCommon Stock | 200 | $34.10 | $6,820.00 |
DisclosureSEC source: 0001193125-26-077349 · ownership.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,707 F1 · kind: The sales reported on this Form 4 were made by the reporting person for tax planning purposes. F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 60,707 shares directly. Read SEC document |
| April 03, 2025 Filed Apr 4, 2025 20:36 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | GrantCommon Stock | 2,639 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-051189 · ownership.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,707 F1 · date: 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. F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 60,707 shares directly. Read SEC document |
| April 03, 2024 Filed Apr 4, 2024 21:19 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | GrantCommon Stock | 3,840 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-041899 · ownership.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 58,068 F1 · date: 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. F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 58,068 shares directly. Read SEC document |
| April 05, 2023 Filed Apr 7, 2023 20:09 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | GrantCommon Stock | 11,627 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-23-023763 · doc4.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 54,228 F1 · date: 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. F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 54,228 shares directly. Read SEC document |
| April 05, 2022 Filed Apr 6, 2022 21:35 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | GrantCommon Stock | 6,067 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-22-023532 · doc4.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 42,601 F1 · date: 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. F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 42,601 shares directly. Read SEC document |
| April 05, 2021 Filed Apr 7, 2021 17:31 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | GrantCommon Stock | 2,073 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-21-025808 · doc4.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 36,534 F1 · date: 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. F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 36,534 shares directly. Read SEC document |
| April 03, 2020 Filed Apr 7, 2020 19:36 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | GrantCommon Stock | 7,092 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-20-023750 · doc4.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 34,461 F1 · date: 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. F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 34,461 shares directly. Read SEC document |
| June 18, 2019 Filed Nov 13, 2025 21:49 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | PurchaseCommon Stock | 200 | $8.33 | $1,666.00 |
DisclosureSEC source: 0001193125-25-280371 · ownership.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,907 F1 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 60,907 shares directly. Read SEC document |
| April 03, 2019 Filed Apr 4, 2019 20:54 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | GrantCommon Stock | 3,152 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-19-023668 · doc4.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 27,369 F1 · date: This award of immediately vested shares of AMSC stock was made in accordance with the 2007 Director Stock Plan. F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 27,369 shares directly. Read SEC document |
| April 04, 2018 Filed Apr 6, 2018 18:32 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | GrantCommon Stock | 6,896 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-18-024177 · doc4.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 24,217 F1 · date: This award of immediately vested shares of AMSC stock was made in accordance with the 2007 Director Stock Plan. F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 24,217 shares directly. Read SEC document |
| April 05, 2017 Filed Apr 7, 2017 20:40 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | GrantCommon Stock | 6,042 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-17-026279 · doc4.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 17,321 F1 · date: This grant was made in accordance with the 2007 Director Stock Plan F2 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 17,321 shares directly. Read SEC document |
| December 15, 2016 Filed Dec 19, 2016 21:19 UTC | AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC · Entity 4752 | SaleCommon Stock | 2,200 | $7.95 | $17,496.60 |
DisclosureSEC source: 0001209191-16-155900 · doc4.xml · nonDerivative · entry 1 OLIVER DAVID R JR · CIK 0001376216 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,279 F1 · kind: The sales reported on this Form 4 were made by Mr. Oliver for tax planning purposes. F2 · price: 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. F3 · balance_after: Following all the transactions reported on this Form 4, the reporting person holds 11,279 shares directly. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.