AMSC — AMERICAN SUPERCONDUCTOR CORP

Ownership history in Atreides Management, LP  ·  4 quarters on record

This page tracks every 13F SEC filing in which Atreides Management, LP reported a position in AMERICAN SUPERCONDUCTOR CORP (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
1.12% (2025 Q2)
Avg. % of fund
0.71%
First filed
2025 Q1
Last filed
2025 Q4
Quarters held
4
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 ADDED 1,044,193 +272,698 +35.3% 0.37% $30.1M $28.78
2025 Q3 REDUCED 771,495 -332,963 -30.1% 0.89% $45.8M $59.39
2025 Q2 ADDED 1,104,458 +280,418 +34.0% 1.12% $40.5M $36.69
2025 Q1 INITIATED 824,040 — — 0.45% $14.9M $18.14
% of Fund (quarterly)    AMSC price (monthly, adj. close)

Other funds also holding AMSC

As of 2025 Q4 — sorted by position size

AWM Investment Company, Inc. 3Y 7Y 2.1% Telemark Asset Management, LLC 3Y 7Y 1.78% ESSEX INVESTMENT MANAGEMENT CO LLC 3Y 7Y 0.94% OBERWEIS ASSET MANAGEMENT INC/ 3Y 7Y 0.88% Lumbard & Kellner, LLC 3Y 7Y 0.72% EMERALD ADVISERS, LLC 3Y 7Y 0.67% Dynamic Technology Lab Private Ltd 3Y 7Y 0.45% VIRTUS ADVISERS, LLC 3Y 7Y 0.35% Fund Advisors of America Inc/FL 0.29% OXFORD ASSET MANAGEMENT LLP 3Y 7Y 0.25%
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