Who
John W. Kosiba Jr.
SVP, CFO & Treasurer
Company insider
Files Form 4 as: SVP, CFO & Treasurer, American Superconductor.
In numbers
- Trades disclosed
- 91
- Buys
- 5
- Sells
- 26
- Bought
- $184K
- Sold
- $15.1M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 10 May 2017
- Last trade
- 11 Jun 2026
- Last filed
- 11 Jun 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month. 1 lines have no legible date and are left out.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 11 Jun 2026filed 11 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $188K5,026 at $37.33 | filing |
| 11 Jun 2026filed 11 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $66K1,743 at $37.85 | filing |
| 11 Jun 2026filed 11 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $188K5,026 at $37.33 | filing |
| 11 Jun 2026filed 11 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $66K1,743 at $37.85 | filing |
| 8 Jun 2026filed 10 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $136K3,286 at $41.50 | filing |
| 8 Jun 2026filed 10 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $66K1,549 at $42.35 | filing |
| 8 Jun 2026filed 10 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $136K3,286 at $41.50 | filing |
| 8 Jun 2026filed 10 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $66K1,549 at $42.35 | filing |
| 3 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $155K3,200 at $48.31 | filing |
| 3 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $130K2,638 at $49.28 | filing |
| 3 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $31K609 at $50.83 | filing |
| 3 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $155K3,200 at $48.31 | filing |
| 3 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $130K2,638 at $49.28 | filing |
| 3 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $31K609 at $50.83 | filing |
| 2 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $282K5,704 at $49.46 | filing |
| 2 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $614K12,122 at $50.62 | filing |
| 2 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $619K12,036 at $51.47 | filing |
| 2 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $31K600 at $52.19 | filing |
| 2 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $282K5,704 at $49.46 | filing |
| 2 Jun 2026filed 3 Jun 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $614K12,122 at $50.62 | filing |
News
American Superconductor (AMSC) Drops 8.4% After Hours, Erasing $100 MillionAMSC · 247wallst.com · 14 Oct 2026American Superconductor Corporation (NASDAQ: AMSC) Revenue Rises as Margin FallsAMSC · tickerreport.com · 12 Oct 2026
0 headlines in the last 90 days name John W. Kosiba Jr.; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.