Kosiba John W JR's Form 4 filing
American Superconductor Corp (AMSC) · filed Jun 3, 2026
- Accession no.
- 0001193125-26-255471
- Filed
- Jun 3, 2026
- Trade date
- Jun 1-3, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Checked
This filing lists 8 non-derivative transactions. Open-market sales total $1.86M. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Kosiba John W JRCIK 0001703463 | Officer (SVP, CFO & Treasurer) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 1, 2026 | Common Stock | AGrant or awardAcquired | +30,000 | $0.00 | $0 | 382,890 | Direct | |
| Jun 2, 2026 | Common Stock | SSaleDisposed | −5,704 | $49.46F3 | −$282,119.84 | 377,186 | Direct | |
| Jun 2, 2026 | Common Stock | SSaleDisposed | −12,122 | $50.62F4 | −$613,615.64 | 365,064 | Direct | |
| Jun 2, 2026 | Common Stock | SSaleDisposed | −12,036 | $51.47F5 | −$619,492.92 | 353,028 | Direct | |
| Jun 2, 2026 | Common Stock | SSaleDisposed | −600 | $52.19F6 | −$31,314 | 352,428 | Direct | |
| Jun 3, 2026 | Common Stock | SSaleDisposed | −3,200 | $48.31F7 | −$154,592 | 349,228 | Direct | |
| Jun 3, 2026 | Common Stock | SSaleDisposed | −2,638 | $49.28F8 | −$130,000.64 | 346,590 | Direct | |
| Jun 3, 2026 | Common Stock | SSaleDisposed | −609 | $50.83F9 | −$30,955.47 | 345,981 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F3
The 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.
Referenced by the price of 1 transaction in Table I.
- F4
The sales were executed in multiple trades at prices ranging from $49.99-$50.95. 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.
Referenced by the price of 1 transaction in Table I.
- F5
The sales were executed in multiple trades at prices ranging from $50.99-$51.90. 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.
Referenced by the price of 1 transaction in Table I.
- F6
The sales were executed in multiple trades at prices ranging from $52.00-$52.37. 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.
Referenced by the price of 1 transaction in Table I.
- F7
The 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.
Referenced by the price of 1 transaction in Table I.
- F8
The sales were executed in multiple trades at prices ranging from $48.87-$49.62. 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.
Referenced by the price of 1 transaction in Table I.
- F9
The sales were executed in multiple trades at prices ranging from $50.35-$50.99. 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.
Referenced by the price of 1 transaction in Table I.