SEC Form 4 · accession 0001193125-26-255450
AMERICAN SUPERCONDUCTOR CORP /DE/ · AMSC
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Daniel P McGahn
Officer — Chairman, President and CEO · Director
Period of report
Jun 1, 2026
Accepted (ET)
Jun 3, 2026 · 4:11 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0000880807
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Jun 1, 2026 | A | 60,000 | $0.00 | A | 1,243,134 | D | |
| Common StockF3 | Jun 2, 2026 | S | 13,762 | $49.451 | D | 1,229,372 | D | |
| Common StockF4 | Jun 2, 2026 | S | 27,900 | $50.6314 | D | 1,201,472 | D | |
| Common StockF5 | Jun 2, 2026 | S | 28,558 | $51.4586 | D | 1,172,914 | D | |
| Common StockF6 | Jun 2, 2026 | S | 2,305 | $52.1361 | D | 1,170,609 | D | |
| Common StockF7 | Jun 3, 2026 | S | 7,075 | $48.3066 | D | 1,163,534 | D | |
| Common StockF8 | Jun 3, 2026 | S | 4,501 | $49.2541 | D | 1,159,033 | D | |
| Common StockF9 | Jun 3, 2026 | S | 500 | $50.288 | D | 1,158,533 | D | |
| Common StockF10 | Jun 3, 2026 | S | 817 | $50.99 | D | 1,157,716 | D | |
| Common StockF11 | holding | — | — | — | 13,262 | I | By 401(k) plan |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The restricted stock award was granted on June 1, 2026. The award will vest in three equal annual installments beginning June 10, 2027.
- F10Following all the transactions reported on this Form 4, the reporting person holds 1,157,716 shares directly.
- F11Following all the transactions reported on this Form 4, the reporting person holds 13,262 shares indirectly through the company's 401(k) plan as of June 3, 2026.
- F2Represents the number of shares sold by the reporting person to cover tax withholding obligations in connection with the vesting of restricted stock awards. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan previously entered into by the reporting person on August 15, 2025, as modified on February 26, 2026.
- F3The sales were executed in multiple trades at prices ranging from $48.95-$49.87. 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.
- F4The sales were executed in multiple trades at prices ranging from $49.99-$50.98. 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.
- F5The sales were executed in multiple trades at prices ranging from $50.99-$51.945. 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.
- F6The sales were executed in multiple trades at prices ranging from $52.00-$52.44. 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.
- F7The sales were executed in multiple trades at prices ranging from $47.80-$48.76. 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 prices at which the transactions were effected.
- F8The sales were executed in multiple trades at prices ranging from $48.87-$49.84. 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 prices at which the transactions were effected.
- F9The sales were executed in multiple trades at prices ranging from $49.89-$50.82. 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 prices at which the transactions were effected.