Telemark Asset Management, LLC
Position in AMSC — American Superconductor Corp /De/
CIK 1420816
BOSTON, MA
Position in AMSC
as of Jun 30, 2026
· filed Aug 10, 2026
Position Value
$24,906,000
+$4,596,000 QoQ
Shares Held
600,000
0.0% QoQ
Ownership
1.24%
of shares outstanding
% of Portfolio
1.80%
of 13F equity value
Holder Rank
#18
of 276 holders
Holding Since
Mar 2020
15 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, 2026Telemark Asset Management, LLC holds $29,368,500 across 2 Specialty Industrial Machinery names. AMSC ranks #1 (84.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMSC |
American Superconductor Corp /De/
This page
|
600,000 | $24,906,000 | |
| 2 | HLIO |
Helios Technologies, Inc.
|
50,000 | $4,462,500 |
All Filings in AMSC
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15 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $24,906,000 | 600,000 | Shares | Sole | 2026-08-10 | |
| 2026-03-31 | $20,310,000 | 600,000 | Shares | Sole | 2026-05-12 | |
| 2025-12-31 | $17,840,722 | 619,900 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $40,979,100 | 690,000 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $25,316,100 | 690,000 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $10,884,000 | 600,000 | Shares | Sole | 2025-05-12 | |
| 2024-12-31 | $14,778,000 | 600,000 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $14,160,000 | 600,000 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $14,034,000 | 600,000 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $5,404,000 | 400,000 | Shares | Sole | 2024-05-10 | |
| 2021-03-31 | $8,721,600 | 460,000 | Shares | Sole | 2021-05-12 | |
| 2020-12-31 | $11,007,400 | 470,000 | Shares | Sole | 2021-02-11 | |
| 2020-09-30 | $4,995,600 | 345,000 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $2,804,850 | 345,000 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $1,890,600 | 345,000 | Shares | Sole | 2020-05-12 | |
| No filing history on record for this holder in this stock. | ||||||