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American Superconductor Corp

American Superconductor Corp (AMSC)

46.67
-4.50
(-8.79%)
Closed June 03 3:00PM
46.20
-0.47
(-1.01%)
After Hours: 6:59PM

American Superconductor Corp (AMSC) Ownership Distribution

Institutions
70.32%
Insiders
3.65%
Public and Others
26.03%

American Superconductor Corp (AMSC) Ownership

Holder Type Held (Actual) % of Outstanding Market Value Date Reported
BlackRock, Inc.Institution3,982,6428.35%US$ 203.79M2026-03-31
Vanguard Capital Management, LLCInstitution2,039,4684.28%US$ 104.36M2026-03-31
Vanguard Portfolio Management, LLCInstitution1,711,6773.59%US$ 87.59M2026-03-31
Baillie Gifford & Co.Institution1,447,4193.03%US$ 74.06M2026-03-31
State Street Global Advisors, Inc.Institution1,261,0712.64%US$ 64.53M2026-03-31
Emerald Advisers, LLCInstitution1,196,2792.51%US$ 61.21M2026-03-31
Mr. Daniel McGahnInsider1,196,0222.51%US$ 61.20M2025-08-04
Geode Capital Management, LLCInstitution1,169,1522.45%US$ 59.83M2026-03-31
Barrow, Hanley, Mewhinney & Strauss, LLCInstitution1,139,7932.39%US$ 58.32M2026-03-31
Teachers Insurance and Annuity Association-College Retirement Equities FundInstitution1,002,1182.10%US$ 51.28M2026-03-31
Oberweis Asset Management, Inc.Institution849,9001.78%US$ 43.49M2026-03-31
AWM Investment Company IncInstitution801,6041.68%US$ 41.02M2026-03-31
First Trust Advisors LPInstitution778,2681.63%US$ 39.82M2026-03-31
UBS Asset Management AGInstitution688,2071.44%US$ 35.22M2026-03-31
Dimensional Fund Advisors LPInstitution658,2971.38%US$ 33.69M2026-03-31
Telemark Asset Management, LLCInstitution600,0001.26%US$ 30.70M2026-03-31
Morgan StanleyInstitution580,9411.22%US$ 29.73M2026-03-31
D. E. Shaw & Co., L.P.Institution567,5741.19%US$ 29.04M2026-03-31
Royce & Associates, LPInstitution542,7781.14%US$ 27.77M2026-03-31
Legal & General Investment Management LimitedInstitution530,1311.11%US$ 27.13M2026-03-31
Goldman Sachs Asset Management, L.P.Institution505,2961.06%US$ 25.86M2026-03-31
Algert Global LLCInstitution489,9711.03%US$ 25.07M2026-03-31
Arrowstreet Capital, Limited PartnershipInstitution446,7520.94%US$ 22.86M2026-03-31
BNP Paribas Financial Markets SNCInstitution436,6870.92%US$ 22.35M2026-03-31
Hood River Capital Management LLCInstitution398,7110.84%US$ 20.40M2026-03-31
Northern Trust Global InvestmentsInstitution393,2240.82%US$ 20.12M2026-03-31
Charles Schwab Investment Management, Inc.Institution385,4140.81%US$ 19.72M2026-03-31
Nomura Investment Management Business TrustInstitution379,4830.80%US$ 19.42M2026-03-31
Mr. John KosibaInsider352,8900.74%US$ 18.06M2025-08-04
Qube Research & Technologies LtdInstitution329,4130.69%US$ 16.86M2026-03-31
Vanguard Fiduciary Trust CompanyInstitution326,0420.68%US$ 16.68M2026-03-31
Stephens Investment Management Group, LLCInstitution308,5150.65%US$ 15.79M2026-03-31
Portolan Capital Management, LLCInstitution295,6360.62%US$ 15.13M2026-03-31
PanAgora Asset Management, Inc.Institution256,3920.54%US$ 13.12M2026-03-31