AMERICAN SUPERCONDUCTOR CORP /DE/
Close on Oct 19, 2026
- Market cap
- $1.21B
- P/E (TTM)
- 8.5
- Dividend yield
- –
About American Superconductor
Motors & Generators, SIC 3621
American Superconductor Corporation designs, manufactures, and supplies power control solutions and electrical infrastructure systems. The company conducts business through two primary segments: Grid and Wind. Its offerings include voltage compensators, industrial capacitors, power transformers, rectifiers, advanced turbine power electronics, specialized controls, and military protection systems that reduce magnetic signatures on naval vessels. The company serves public electric utilities, renewable energy project operators, wind turbine manufacturers, industrial processors, semiconductor fabricators, commercial shipyards, and military organizations such as the United States Navy.
The company is headquartered in Ayer, Massachusetts. It maintains international operations and conducts business across multiple global regions, including North America, South America, the Asia-Pacific region, and Europe. The organization maintains property, subsidiaries, and operations within the United States and Brazil, and engages with partners and authorities across other markets such as Austria, Poland, and Romania.
Summary of the business section of American Superconductor's latest annual report, written by StockData.
Company profile
Company
- Legal name
- AMERICAN SUPERCONDUCTOR CORP /DE/
- Founded
- 1987
- Headquarters
- Devens, MA
- Address
- Sixty Four Jackson Road 01434
- Phone
- (978) 842-3000
- Employees
- 1,195, Mar 31, 2026
- Industry
- Motors & Generators
- Incorporated in
- Delaware
- Fiscal year ends
- March 31
- Auditor
- RSM US LLP, Boston, MA
Stock & identifiers
- Ticker
- AMSC
- Exchange
- Nasdaq
- Shares outstanding
- 48M, Jul 31, 2026
- Public float
- $2.58B, Sep 30, 2025
- Filer category
- Large accelerated filer
- Stock splits
- 1-for-10 reverse, Mar 25, 2015; 1-for-10 reverse, Mar 24, 2015; 3-for-2, Nov 29, 1994
- SEC CIK
- 880807
- CUSIP
- 030111207
- ISIN
- US0301112076
- LEI
- 549300S9YT8Z8LOK4452
- EIN
- 04-2959321
Executives and directors
Officers and directors who filed ownership reports (Forms 3, 4, 5) in the last two years
| Name | Position | Shares owned |
|---|---|---|
| Daniel P. McGahn | Chairman, President and CEO, Director | 1,149,882 |
| John W. Kosiba JR | SVP, CFO & Treasurer | 334,748 |
| Barbara G. Littlefield | Director | 37,034 |
| Laura A. Dambier | Director | 14,992 |
| Arthur H. House | Director | 51,779 |
| David R. Oliver Jr | Director | 63,823 |
| Margaret D. Klein | Director | 19,492 |
| Terence Robert Donnelly | Director | 2,665 |
CEO pay and shareholder return
Pay versus performance table from the proxy statement
| Fiscal year | CEO total pay | CEO pay actually paid | Other executives (avg) | Value of $100 invested | Peer group |
|---|---|---|---|---|---|
| FY2024 Daniel P. McGahn | $7.53M | $17.51M | $3.79M | $179 | $275 |
| FY2023 Daniel P. McGahn | $6.02M | $7.58M | $2.90M | $96 | $138 |
| FY2022 Daniel P. McGahn | $3.30M | $7.72M | $1.55M | $71 | $123 |
| FY2021 Daniel P. McGahn | $1.94M | $1.06M | $991.55K | $26 | $104 |
| FY2020 Daniel P. McGahn | $1.93M | -$1.92M | $900.80K | $40 | $100 |
| FY2019 Daniel P. McGahn | $2.95M | $8.01M | $1.36M | $352 | $176 |
“Actually paid” adjusts reported pay for changes in the value of equity awards. Shareholder return assumes $100 invested at the start of the measurement period, as disclosed by the company.
Employees
Headcount reported in annual reports
“As of March 31, 2026, we employed 1,195 employees.”
Corporate history
Events identified from SEC filings
| Date | Event | Details |
|---|---|---|
| Dec 10, 2025 | Acquisition / sale | Completion of acquisition or disposition of assets (8-K Item 2.01) |
| Aug 5, 2024 | Acquisition / sale | Completion of acquisition or disposition of assets (8-K Item 2.01) |
| Oct 5, 2020 | Acquisition / sale | Completion of acquisition or disposition of assets (8-K Item 2.01) |
| Apr 3, 2018 | Acquisition / sale | Completion of acquisition or disposition of assets (8-K Item 2.01) |
| Jan 21, 2015 | Listing notice | Notice of delisting or failure to satisfy a listing rule (8-K Item 3.01) |
| Aug 21, 2013 | Auditor change | Change in certifying accountant (8-K Item 4.01) |
| Aug 18, 2011 | Listing notice | Notice of delisting or failure to satisfy a listing rule (8-K Item 3.01) |
| Aug 10, 2011 | Late filing | Notification of late filing |
| Jun 21, 2011 | Listing notice | Notice of delisting or failure to satisfy a listing rule (8-K Item 3.01) |
| May 31, 2011 | Late filing | Notification of late filing |
| Jan 11, 2007 | Acquisition / sale | Completion of acquisition or disposition of assets (8-K Item 2.01) |