AMERICAN SUPERCONDUCTOR CORP /DE/
Institutional investors holding AMSC
| Investor | Weight | Quarter |
|---|---|---|
| Meridian / ArrowMark | 0.12% | 2026Q1 |
| Polen Capital Management | 0.00% | 2025Q4 |
Congressional data coming soon
23
Total trades
$6.2M
Volume
8
Buys
15
Sells
Last trade: Jun 1, 2026
| Date | Insider | Type | Value |
|---|---|---|---|
| Jun 1, 2026 | John W Kosiba JR | Sell | $681K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $1.4M |
Congressional trade data is being sourced and will appear here shortly.
| Jun 1, 2026 |
| John W Kosiba JR |
| Sell |
| $1.5M |
| Jun 1, 2026 | John W Kosiba JR | Sell | $120K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $342K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $222K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $25K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $42K |
| Jun 1, 2026 | John W Kosiba JR | Buy | – |
| Jun 1, 2026 | John W Kosiba JR | Sell | $282K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $614K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $619K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $31K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $155K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $130K |
| Jun 1, 2026 | John W Kosiba JR | Sell | $31K |
| Jun 1, 2026 | John W Kosiba JR | Buy | – |