American Superconductor shares owned by Promethium Advisors
Quarter-by-quarter ownership of American Superconductor (AMSC) shares owned by Promethium Advisors
from 13F filings
Historical chart of Promethium Advisors investment in American Superconductor
Tip: Access up to 7 years of quarterly data
All positions including American Superconductor held by Promethium Advisors consolidated in one spreadsheet with up to 7 years of data
Download as csv
Download as Excel
Quarterly reported holdings in American Superconductor by Promethium Advisors
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $327k | 5.5k | 59.39 |
| 2025-06-30 | $202k | 5.5k | 36.69 |