American Superconductor - 15 Year Stock Price History | AMSC

Historical daily share price chart and data for American Superconductor since 2011 adjusted for splits and dividends. The latest closing stock price for American Superconductor as of June 09, 2026 is 40.53.
  • The all-time high American Superconductor stock closing price was 90.40 on June 30, 2011.
  • The American Superconductor 52-week high stock price is 70.49, which is 73.9% above the current share price.
  • The American Superconductor 52-week low stock price is 24.87, which is 38.6% below the current share price.
  • The average American Superconductor stock price for the last 52 weeks is 42.22.
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American Superconductor Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2026 38.1446 31.5800 58.7200 25.9500 40.5300 40.83%
2025 35.9475 25.5500 66.6800 15.8000 28.7800 16.85%
2024 19.9898 10.8400 36.8100 9.6700 24.6300 121.10%
2023 6.6769 3.5800 16.1300 3.5800 11.1400 202.72%
2022 5.8479 11.0200 11.0200 3.2900 3.6800 -66.18%
2021 17.1716 23.3600 30.0600 10.7500 10.8800 -53.54%
2020 10.6246 7.8900 25.7600 4.6400 23.4200 198.34%
2019 10.1577 11.7500 16.0600 7.3700 7.8500 -29.60%
2018 6.5554 3.8100 12.3200 3.8100 11.1500 207.16%
2017 4.8690 7.4200 7.7000 2.9700 3.6300 -50.75%
2016 7.8303 6.6300 11.9000 5.6100 7.3700 15.70%
2015 5.8989 8.2000 10.4000 3.4800 6.3700 -13.92%
2014 14.9147 17.4000 23.1000 7.2000 7.4000 -54.88%
2013 24.3056 28.3000 32.7000 13.9000 16.4000 -37.40%
2012 39.6072 37.1000 60.3000 24.5000 26.2000 -29.00%
Sector Industry Market Cap Revenue
Computer and Technology Miscelleneous Electrical Components $1.795B $0.223B
American Superconductor Corporation is a leading energy technologies company. The company develops and sells a wide range of products and solutions based on power electronic systems and high temperature superconductor wires that dramatically improve the efficiency, reliability and quality of electricity during its generation, transmission, distribution and use. The company is a dominant force in alternative energy, offering grid interconnection solutions as well as licensed wind energy designs and electrical systems. As the world's principal supplier of HTS wire, AMSC is enabling a new generation of compact, high-power electrical products, including power cables, grid-level surge protectors, motors, generators, and advanced transportation and defense systems. AMSC also provides utility and industrial customers worldwide with voltage regulation systems that dramatically enhance power grid capacity, reliability and security, as well as industrial productivity.
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