Kosiba John W JR — SEC Form 4 filings
SEC reporting owner CIK 1703463. 13 Form 4 filings on record with FilingPulse; latest filed 2026-06-11.
Transaction summary — filings shown
Covers all 13 filings on record, filed 2024-05-23 to 2026-06-11. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 24 legs across 11 filings — 292,602 shares, $10,079,697 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 3.
- Largest priced transaction: sale of 34,260 shares @ $54.34 ($1,861,723) in AMERICAN SUPERCONDUCTOR CORP /DE/, filed 2025-08-06.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | SVP, CFO & Treasurer | 13 | — | 24 legs · 292,602 sh · $10,079,697 | 3 |
Form 4 filings — Kosiba John W JR
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-11 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Sale (S): 5,026 @ $37.33 · Sale (S): 1,743 @ $37.85 | EDGAR |
| 2026-06-10 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Sale (S): 3,286 @ $41.50 · Sale (S): 1,549 @ $42.35 | EDGAR |
| 2026-06-03 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Grant/award (A): 30,000 @ $0 · Sale (S): 5,704 @ $49.46 · Sale (S): 12,122 @ $50.62 · Sale (S): 12,036 @ $51.47 · Sale (S): 600 @ $52.19 · Sale (S): 3,200 @ $48.31 · +2 more | EDGAR |
| 2025-08-06 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Sale (S): 34,260 @ $54.34 · Sale (S): 15,740 @ $55.13 · Sale (S): 9,843 @ $55.26 | EDGAR |
| 2025-06-12 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Sale (S): 6,342 @ $28.55 · Sale (S): 300 @ $29.08 | EDGAR |
| 2025-06-09 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Sale (S): 4,744 @ $31.83 | EDGAR |
| 2025-05-29 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Sale (S): 10,097 @ $25.55 · Sale (S): 39,903 @ $26.61 | EDGAR |
| 2025-05-22 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Sale (S): 11,860 @ $24.50 | EDGAR |
| 2025-05-19 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Grant/award (A): 120,000 @ $0 | EDGAR |
| 2024-11-06 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Sale (S): 50,000 @ $28.28 | EDGAR |
| 2024-09-30 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Grant/award (A): 90,000 @ $0 | EDGAR |
| 2024-06-12 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Sale (S): 32,000 @ $21.68 | EDGAR |
| 2024-05-23 | 4 | AMERICAN SUPERCONDUCTOR CORP /DE/ (AMSC) | Sale (S): 26,830 @ $14.78 · Sale (S): 2,170 @ $15.30 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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