American Superconductor shares owned by Oberweis Asset Management
Quarter-by-quarter ownership of American Superconductor (AMSC) shares owned by Oberweis Asset Management
from 13F filings
Historical chart of Oberweis Asset Management investment in American Superconductor
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Quarterly reported holdings in American Superconductor by Oberweis Asset Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $40M | 666k | 59.39 |
| 2025-06-30 | $25M | 668k | 36.69 |
| 2025-03-31 | $12M | 668k | 18.14 |
| 2024-12-31 | $16M | 664k | 24.63 |
| 2024-09-30 | $16M | 664k | 23.60 |
| 2024-06-30 | $16M | 664k | 23.39 |
| 2024-03-31 | $8.6M | 634k | 13.51 |
| 2023-12-31 | $4.2M | 376k | 11.14 |
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