AMSC AMERICAN SUPERCONDUCTOR CORP COM

Ownership history in Telemark Asset Management, LLC  ·  25 quarters on record

This page tracks every 13F SEC filing in which Telemark Asset Management, LLC reported a position in AMERICAN SUPERCONDUCTOR CORP COM (AMSC). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
3.89% (2025 Q3)
Avg. % of fund
0.98%
First filed
2008 Q2
Last filed
2025 Q4
Quarters held
25
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 REDUCED 619,900 -70,100 -10.2% 1.78% $17.8M $28.78
2025 Q3 UNCHANGED 690,000 0% 3.89% $41.0M $59.39
2025 Q2 ADDED 690,000 +90,000 +15.0% 2.30% $25.3M $36.69
2025 Q1 UNCHANGED 600,000 0% 1.42% $10.9M $18.14
2024 Q4 UNCHANGED 600,000 0% 1.47% $14.8M $24.63
2024 Q3 UNCHANGED 600,000 0% 1.43% $14.2M $23.60
2024 Q2 ADDED 600,000 +200,000 +50.0% 1.22% $14.0M $23.39
2024 Q1 REDUCED 400,000 -60,000 -13.0% 0.56% $5.4M $13.51
2021 Q1 REDUCED 460,000 -10,000 -2.1% 0.74% $8.7M $18.96
2020 Q4 ADDED 470,000 +125,000 +36.2% 1.14% $11.0M $23.42
15 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    AMSC price (monthly, adj. close)
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