Who
Arthur H. House
Director
Company insider
Files Form 4 as: Director, American Superconductor.
In numbers
- Trades disclosed
- 15
- Buys
- 0
- Sells
- 1
- Bought
- $0
- Sold
- $494K
- Companies
- 1
- Companies where not an officer
- 1
- First trade
- 20 Sep 2016
- Last trade
- 3 Apr 2026
- Last filed
- 7 Apr 2026
Companies traded
Activity over time
1 Aug 2025 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 3 Apr 2026filed 7 Apr 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —3,116 at $0.00 | filing |
| 3 Apr 2026filed 7 Apr 2026 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —3,116 at $0.00 | filing |
| 8 Aug 2025filed 8 Aug 2025 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Sold | $494K9,703 at $50.92 | filing |
| 6 Aug 2025filed 8 Aug 2025 | AMSC American Superconductoroption or derivative · Electrical Equipment & Grid | SEC FORM 4 Code M | —9,703 at $0.00 | filing |
| 6 Aug 2025filed 8 Aug 2025 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code M | $66K9,703 at $6.80 | filing |
| 3 Apr 2025filed 4 Apr 2025 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —2,639 at $0.00 | filing |
| 3 Apr 2024filed 4 Apr 2024 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —3,840 at $0.00 | filing |
| 5 Apr 2023filed 7 Apr 2023 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —11,627 at $0.00 | filing |
| 5 Apr 2022filed 6 Apr 2022 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —6,067 at $0.00 | filing |
| 5 Apr 2021filed 7 Apr 2021 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —2,073 at $0.00 | filing |
| 3 Apr 2020filed 7 Apr 2020 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —7,092 at $0.00 | filing |
| 3 Apr 2019filed 4 Apr 2019 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —3,152 at $0.00 | filing |
| 4 Apr 2018filed 6 Apr 2018 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —6,896 at $0.00 | filing |
| 5 Apr 2017filed 7 Apr 2017 | AMSC American SuperconductorElectrical Equipment & Grid | SEC FORM 4 Code A | —3,277 at $0.00 | filing |
| 20 Sep 2016filed 22 Sep 2016 | AMSC American Superconductoroption or derivative · Electrical Equipment & Grid | SEC FORM 4 Code A | —9,703 at $0.00 | 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 2026FinancialContent - Generac, American Superconductor, Bloom Energy, Redwire, and Matrix Service Shares Skyrocket, What You Need To KnowAMSC · financialcontent.com · 6 Oct 2026
0 headlines in the last 90 days name Arthur H. House; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.