American Superconductor Corporation (AMSC)
NasdaqGS
Price as at 30 Sept 2026, 15:58 UTC. Quotes are delayed.
Fundamentals
Valuation and ratings
American Superconductor Corporation trades at $29.27. We do not hold enough of the inputs to value this company with the confidence the estimate implies, so we publish no fair value for it rather than a number we would not defend.
About American Superconductor Corporation
American Superconductor Corporation, together with its subsidiaries, provides megawatt-scale power resiliency solutions worldwide. The company operates through two segments: Grid and Wind segments. The Grid segment offers products and services that enable electric utilities, industrial facilities, and traditional and renewable energy project developers to connect, transmit, and distribute power under the Gridtec Solutions brand. It provides transmission planning services, which identify power grid congestion, poor power quality, and other risks; grid interconnection solutions for wind farms and solar power plants, power quality systems, and transmission and distribution cable systems; D-VAR systems used for controlling power flow and voltage in the AC transmission system; actiVAR system, a fast-switching medium-voltage reactive compensation solution; armorVAR system installed for reactive compensation, power factor correction, loss reduction, utility bill savings, and mitigation of common power quality concerns related to power converter-based generation and load devices; D-VAR volt var optimization (VVO) that serves the distribution power grid market. This segment also offers ship protection systems, which reduce a vessel's magnetic signature; power management, power generation systems, and propulsion motors and power generators; and transformers and rectifiers; and REG systems used in a ring or loop configuration to interconnect nearby urban substations. The Wind segment designs wind turbine systems and licenses these designs to third parties under the Windtec Solutions brand. It also supplies power electronics and software-based control systems, engineered designs, and support services; and provides customer support services to wind turbine manufacturers. This segment's design portfolio comprises a range of drivetrains and power ratings of 2 megawatts and higher. The company was incorporated in 1987 and is headquartered in Ayer, Massachusetts.
Company profile, industry and headcount are as reported by our data provider and can lag a company's own filings by a reporting period. The annual report is the authority.
Super investor ownership
8 of the funds we track reported a position in their latest SEC 13F filing. Largest first:
- Baillie Gifford, BAILLIE GIFFORD & CO$38.74M · 0.0% of book
- D. E. Shaw, D. E. Shaw & Co., Inc.$15.23M · 0.0% of book
- Arrowstreet Capital, ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$9.58M · 0.0% of book
- Cliff Asness, AQR CAPITAL MANAGEMENT LLC$8.07M · 0.0% of book
- Israel Englander, MILLENNIUM MANAGEMENT LLC$4.18M · 0.0% of book
A word of warning on reading these figures: a 13F reports the market value of a holding, so a fund that traded nothing at all still appears to have sold when the price fell. We found 102 companies where the standard reading gives the opposite answer. Only the share count is honest.
Common questions
Which funds own AMSC?
8 of the institutions we track reported a position in AMSC in their most recent SEC 13F filing. A 13F is filed up to 45 days after quarter end, so it tells you what a fund held then, not what it holds now.
Where does SteadyShares get its AMSC data?
Fundamentals for AMSC come from company filings and exchange data, as listed on NasdaqGS; institutional ownership comes from SEC 13F filings. The share price shown was last refreshed on 30 Sept 2026, 15:58 UTC and is delayed. Metrics we do not hold are left out of the page rather than estimated.
The full research page for AMSC, with financial statements, ownership detail, peer comparison and alerts, is free inside the app.
Data from company filings, exchange quotes and SEC EDGAR 13F disclosures. Quotes are delayed. Metrics we do not have are left out rather than estimated. Educational information, not financial advice.