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MARSHALL WACE, LLP

Position in AMSC — American Superconductor Corp /De/

CIK 1318757 LONDON, X0

Position in AMSC

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$2,210,864
+$1,031,038 QoQ
Shares Held
53,261
-49.7% QoQ
Ownership
0.110%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#75
of 276 holders
Holding Since
Jun 2022
6 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in AMSC Over Time

Shares Held

Position Value (USD)

Position in Specialty Industrial Machinery

Industrials · as of Jun 30, 2026

MARSHALL WACE, LLP holds $1,190,080,595 across 42 Specialty Industrial Machinery names. AMSC ranks #32 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in AMSC

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6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,210,864 53,261
2023-12-31 $1,179,826 105,909
2023-06-30 $186,297 29,760
2022-12-31 $256,381 69,669
2022-09-30 $366,785 83,741
2022-06-30 $372,504 71,912