American Superconductor Corporation
American Superconductor Corporation (Nasdaq: AMSC) designs, develops and deploys power-control systems for electric grids, industrial facilities, wind turbines and naval applications. Its Grid segment provides voltage-management, power-quality and grid-interconnection systems, transformers, rectifiers, capacitors,… From the company’s description.
Over the twelve months to Sep 30, 2026, American Superconductor Corporation reported revenue of $349.05M, up 31.1% from a year earlier. Its operating margin was 5.2%. In fiscal 2025, it reported revenue of $299.15M, up 34.3% from fiscal 2024, and net income of $133.81M.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What American Superconductor Corporation does
In the company’s own words
American Superconductor Corporation (Nasdaq: AMSC) designs, develops and deploys power-control systems for electric grids, industrial facilities, wind turbines and naval applications. Its Grid segment provides voltage-management, power-quality and grid-interconnection systems, transformers, rectifiers, capacitors, harmonic filters, power supplies and military-grade magnetics to utilities, renewable-energy developers, industrial manufacturers and defense customers. Its Wind segment supplies electrical control systems, turbine designs and engineering, licensing, field-service and support services to wind-turbine manufacturers; its systems and components have been shipped for more than 18 gigawatts of wind capacity. The company also sells high-temperature superconductor wire and ship-protection systems that reduce naval vessels’ magnetic signatures. Its products include D-VAR, Amperium, actiVAR and armorVAR. Acquisitions expanded the Grid segment: Comtrafo adds Brazilian power and distribution transformers, while NWL provides engineered power-conversion solutions for industrial and military uses. AMSC has served more than 100 Grid customers since its founding in 1987.
Company details
- Sector
- Industrials
- Industry (SIC)
- Electronic Equipment
- Headquarters
- DEVENS, MA
- Fiscal year end
- March
- CIK
- 880807
- SIC
- 3621
Financial performance, year by year
Fiscal 2011–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns American Superconductor Corporation — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · American Superconductor Corporation’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
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