13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Motors & GeneratorsMost-boughtAI cap-ex
AMSC

AMERICAN SUPERCONDUCTOR CORP

260 institutions still hold AMERICAN SUPERCONDUCTOR CORP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 030111207·Motors & Generators·260 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 6.0%
vs prior quarter
13F value held
$746M
50.0% inst. owned
of float
Holders
260
-26 QoQ
filers reporting
Activity
+66 / −102
+789 added · −745 reduced
this quarter
Concentration
18.07%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

260 institutions reported AMSC in Q1 2026. BlackRock, Inc. leads at 18.1% of the visible book. -26 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$135M4.0M0.00%Q1 202602
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$69M2.0M0.00%Q1 202603
Vanguard Portfolio Management
CIK 0002100121
$58M1.7M0.00%Q1 202604
BAILLIE GIFFORD & CO
CIK 0001088875
$49M1.4M0.05%Q1 202605
STATE STREET CORP
CIK 0000093751
$43M1.3M0.00%Q1 202606
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$40M1.2M0.00%Q1 202607
BARROW HANLEY MEWHINNEY & STRAUSS LLC
CIK 0000313028
$39M1.1M0.13%Q1 202608
Nuveen, LLC
CIK 0001871926
$35M1.0M0.01%Q1 202609
OBERWEIS ASSET MANAGEMENT INC/
CIK 0000937886
$29M850K0.85%Q1 202610
AWM Investment Company, Inc.
CIK 0001535264
$27M802K3.00%Q1 202611
CITADEL ADVISORS LLC
CIK 0001423053
$27M941K0.00%Q4 202512
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$26M778K0.02%Q1 202613
EMERALD ADVISERS, LLC
CIK 0001015083
$26M757K0.81%Q1 202614
GOLDMAN SACHS GROUP INC
CIK 0000886982
$24M710K0.00%Q1 202615
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$22M658K0.00%Q1 202616
MORGAN STANLEY
CIK 0000895421
$21M634K0.00%Q1 202617
Telemark Asset Management, LLC
CIK 0001420816
$20M600K1.88%Q1 202618
UBS Group AG
CIK 0001610520
$20M600K0.00%Q1 202619
ROYCE & ASSOCIATES LP
CIK 0000906304
$18M543K0.18%Q1 202620
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$18M532K0.00%Q1 2026
Page 1 of 13
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