InvestorLens

AMSC — AMERICAN SUPERCONDUCTOR CORP

Public company

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For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About AMERICAN SUPERCONDUCTOR CORP (AMSC)

AMERICAN SUPERCONDUCTOR CORP (AMSC) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $27M. Across recent filings, tracked investors recorded 6 new positions, 0 increased, 0 reduced, and 1 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in AMSC

86
/100
Strong Institutional Accumulation
Added / Increased6
Reduced0
Exited1
BearishBullish
Crowded Trade Score™

How many top investors track AMSC

20
/100
Emerging Interest
3investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

AMSC Ownership Composition

How AMERICAN SUPERCONDUCTOR CORP is held across tracked investor types, based on reported 13F positions.

Dominant Type
Other
81% of tracked value
Institutions
3
tracked investors
Total Reported
$23.9M
combined 13F value
Sectors2
  • Other81.1%
  • Hedge Funds18.9%
Other(2)
81.1%
Hedge Funds(1)
18.9%

Tracked investors reporting AMSC

  • Ken GriffinMar 31, 2026
    Citadel Advisors
    Shares
    471.6K
    Value
    $16M
    % Portfolio
    0.00%
  • Steve CohenMar 31, 2026
    Point72 Asset Management
    Shares
    133.8K
    Value
    $4.5M
    % Portfolio
    0.01%
  • Izzy EnglanderMar 31, 2026
    Millennium Management
    Shares
    101.6K
    Value
    $3.4M
    % Portfolio
    0.00%

Recent activity

Frequently asked questions

How many institutional investors hold AMSC?
3 tracked institutional investors disclosed a position in AMSC (AMERICAN SUPERCONDUCTOR CORP) in their most recent 13F filing.
Who is the largest institutional holder of AMSC?
Ken Griffin, Citadel Advisors, holds the largest disclosed position in AMSC, valued at $27M.
Did institutional ownership of AMSC increase or decrease?
Across recent 13F filings, tracked investors recorded 6 new positions, 0 increased, 0 reduced, and 1 fully exited AMSC.
Where does this AMSC ownership data come from?
SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.
AMSC (AMERICAN SUPERCONDUCTOR CORP) — Institutional Holders — InvestorLens