PROMETHIUM ADVISORS,LLC
Position in AMSC — American Superconductor Corp /De/
CIK 2034073
BETHESDA, MD
Position in AMSC
as of Jun 30, 2026
· filed Aug 5, 2026
Position Value
$207,550
-$119,095 QoQ
Shares Held
5,000
-9.1% QoQ
Ownership
0.010%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
#193
of 276 holders
Holding Since
Jun 2025
3 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AMSC Over Time
Shares Held
Position Value (USD)
Position in Specialty Industrial Machinery
Industrials · as of Jun 30, 2026PROMETHIUM ADVISORS,LLC holds $2,746,979 across 4 Specialty Industrial Machinery names. AMSC ranks #3 (7.6% of the industry book) .
All Filings in AMSC
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $207,550 | 5,000 | Shares | Sole | 2026-08-05 | |
| 2025-09-30 | $326,645 | 5,500 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $201,795 | 5,500 | Shares | Sole | 2025-08-11 | |
| No filing history on record for this holder in this stock. | ||||||