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Russell Investments Group, Ltd.

Position in AMSC — American Superconductor Corp /De/

CIK 1692234 Seattle, WA

Position in AMSC

as of Jun 30, 2026 · filed Aug 6, 2026
Position Value
$7,129,921
+$5,865,151 QoQ
Shares Held
171,764
+359.7% QoQ
Ownership
0.355%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#39
of 276 holders
Holding Since
Sep 2020
9 quarters on record
Voting authority Sole 84% Shared 0% None 16%

Common Shares in AMSC Over Time

Shares Held

Position Value (USD)

Position in Specialty Industrial Machinery

Industrials · as of Jun 30, 2026

Russell Investments Group, Ltd. holds $1,686,049,607 across 59 Specialty Industrial Machinery names. AMSC ranks #30 (0.4% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in AMSC

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9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $7,129,921 171,764
2026-03-31 $1,264,770 37,364
2025-12-31 $1,009,168 35,065
2025-09-30 $1,329,919 22,393
2025-06-30 $283,832 7,736
2025-03-31 $2,884 159
2024-12-31 $4,088 166
2024-09-30 $204,187 8,652
2020-09-30 $593,042 40,956