American Superconductor shares owned by Portolan Capital Management
Quarter-by-quarter ownership of American Superconductor (AMSC) shares owned by Portolan Capital Management
from 13F filings
Historical chart of Portolan Capital Management investment in American Superconductor
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Quarterly reported holdings in American Superconductor by Portolan Capital Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-03-31 | $10M | 296k | 33.85 |
| 2020-12-31 | $3.9M | 167k | 23.42 |
More positions owned by Portolan Capital Management
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