AMSC — AMERICAN SUPERCONDUCTOR CORP

Ownership history in Sigma Planning Corp  ·  1 quarter on record

This page tracks every 13F SEC filing in which Sigma Planning Corp 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
0.02% (2025 Q3)
Avg. % of fund
0.02%
First filed
2025 Q3
Last filed
2025 Q3
Quarters held
1
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 INITIATED 10,293 — — 0.02% $611K $59.39
% 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% Atreides Management, LP 3Y 0.37% VIRTUS ADVISERS, LLC 3Y 7Y 0.35% Fund Advisors of America Inc/FL 0.29%
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