American Superconductor Corp.
- AMSC · Nasdaq
- Motors & Generators
- Devens, MA
- 1,195 employees
- CIK 0000880807
Updated from SEC filings through
Top things to know
Executives
- Daniel P. McGahn Chairman, President and CEO 4, 2026-06-11
- John W. Kosiba JR SVP, CFO & Treasurer 4, 2026-06-11
American Superconductor Corp is a U.S. public company in motors & generators (SIC 3621), headquartered in Devens, MA. It trades as AMSC on Nasdaq. Revenue was $299M in the fiscal year ending March 31, 2026, +34.3% from the year before. It reported about 1,195 employees. Daniel P. McGahn is Chairman, President and CEO.
Five-year financials
| Metric | FY2026 | FY2025 | FY2024 | FY2023 | FY2022 |
|---|---|---|---|---|---|
| Revenue | $299M 10-K, 2026-05-27 | $223M 10-K, 2026-05-27 | $146M 10-K, 2026-05-27 | $106M 10-K, 2024-05-29 | $108M 10-K, 2023-05-31 |
| Operating income | $11.4M 10-K, 2026-05-27 | -$1.1M 10-K, 2026-05-27 | -$11.4M 10-K, 2026-05-27 | -$33.0M 10-K, 2024-05-29 | -$21.1M 10-K, 2023-05-31 |
| SG&A | $57.6M 10-K, 2026-05-27 | $43.1M 10-K, 2026-05-27 | $31.6M 10-K, 2026-05-27 | $28.7M 10-K, 2024-05-29 | $27.5M 10-K, 2023-05-31 |
| Net income | $134M 10-K, 2026-05-27 | $6.0M 10-K, 2026-05-27 | -$11.1M 10-K, 2026-05-27 | -$35.0M 10-K, 2024-05-29 | -$19.2M 10-K, 2023-05-31 |
Annual figures from XBRL in each company's own filings. Click a figure to open the filing. SG&A marked derived is general and administrative plus selling and marketing.
Leadership and board
| Name | Title | Source |
|---|---|---|
| Daniel P. McGahn | Chairman, President and CEO | 4, 2026-06-11 |
| John W. Kosiba JR | SVP, CFO & Treasurer | 4, 2026-06-11 |
What American Superconductor Corp does
American Superconductor Corporation (together with its subsidiaries, “AMSC®” or the “Company”) was founded on April 9, 1987. At AMSC, we believe that our creativity can meet today’s challenges and help us progress to a better future. That means using future-facing technologies to harmonize the world’s desire for sustainable progress with the need for more reliable, effective and efficient power delivery. Already, our transformative power solutions are moving the world forward.
Shares and governance
| Shares outstanding | 48.5 million (as of October 30, 2026) | 10-Q, November 4, 2026 |
|---|---|---|
| Public float | $2.6B (as of September 30, 2025) | 10-K, May 27, 2026 |
| Reportable segments | 2 (period ending September 30, 2026) | 10-Q, November 4, 2026 |
| Latest proxy statement | Meeting July 31, 2026 (filed June 18, 2026) | DEF 14A, June 18, 2026 |
| Auditor | Rsm Us LLP (Boston, MA) | Latest 10-K |
Insider trades
Open-market buys and sales by officers and directors, from Forms 4 and 5. One row per filing.
| Date | Insider | Trade | Shares | Value | Source |
|---|---|---|---|---|---|
| June 11, 2026 | Laura A. Dambier Director | Sale | 4,000 | $151K | Form 4, June 12, 2026 |
| June 11, 2026 | John W. Kosiba JR SVP, CFO & Treasurer | Sale | 6,769 | $254K | Form 4, June 11, 2026 |
| June 11, 2026 | Daniel P. McGahn Chairman, President and CEO | Sale | 16,117 | $603K | Form 4, June 11, 2026 |
| June 8, 2026 | John W. Kosiba JR SVP, CFO & Treasurer | Sale | 4,835 | $202K | Form 4, June 10, 2026 |
| June 8, 2026 | Daniel P. McGahn Chairman, President and CEO | Sale | 9,670 | $404K | Form 4, June 10, 2026 |
| June 3, 2026 | John W. Kosiba JR SVP, CFO & Treasurer | Sale | 36,909 | $1.9M | Form 4, June 3, 2026 |
| June 3, 2026 | Daniel P. McGahn Chairman, President and CEO | Sale | 85,418 | $4.3M | Form 4, June 3, 2026 |
| February 24, 2026 | David R. Oliver Jr Director | Sale | 200 | $7K | Form 4, February 26, 2026 |
Recent 8-K events
- 8-K filed 2026-11-04
- Item 2.02 Results of operations and financial condition (earnings release)
- 8-K filed 2026-09-21
- Item 5.02 Departure or appointment of directors or officers; compensation
- 8-K filed 2026-08-05
- Item 2.02 Results of operations and financial condition (earnings release)
- Item 5.07 Submission of matters to a vote of security holders
- 8-K filed 2026-06-02
- Item 5.02 Departure or appointment of directors or officers; compensation
- 8-K filed 2026-05-27
- Item 2.02 Results of operations and financial condition (earnings release)
- 8-K filed 2026-02-04
- Item 2.02 Results of operations and financial condition (earnings release)
- 8-K filed 2025-12-23
- Item 8.01 Other events
- 8-K filed 2025-12-10
- Item 1.01 Entry into a material definitive agreement
- Item 2.01 Completion of acquisition or disposition of assets
- Item 3.02 Unregistered sales of equity securities
- Item 8.01 Other events
- 8-K filed 2025-11-05
- Item 2.02 Results of operations and financial condition (earnings release)
- 8-K filed 2025-07-30
- Item 2.02 Results of operations and financial condition (earnings release)
Frequently asked questions about American Superconductor Corp
- What does American Superconductor Corp do?
- In its own words, from Item 1 of its 10-K: "American Superconductor Corporation (together with its subsidiaries, “AMSC®” or the “Company”) was founded on April 9, 1987. At AMSC, we believe that our creativity can meet today’s challenges and help us progress to a better future. That means using future-facing technologies to harmonize the world’s desire for sustainable progress with the need for more reliable, effective and efficient power delivery. Already, our transformative power solutions are moving the world forward."
- What is American Superconductor Corp's revenue?
- $299M for the fiscal year ending March 31, 2026, from its 10-K filed May 27, 2026.
- Is American Superconductor Corp profitable?
- American Superconductor Corp reported net income of $134M for the fiscal year ending March 31, 2026.
- How many employees does American Superconductor Corp have?
- About 1,195 as of March 31, 2026, as stated in its annual report.
- Who is the CEO of American Superconductor Corp?
- Daniel P. McGahn, Chairman, President and CEO, as named in a 4 filed June 11, 2026.
- Who is the CFO of American Superconductor Corp?
- John W. Kosiba JR, SVP, CFO & Treasurer, as named in a 4 filed June 11, 2026.
- Where is American Superconductor Corp headquartered?
- Devens, MA.
- What is American Superconductor Corp's stock ticker?
- AMSC on Nasdaq.
- What industry is American Superconductor Corp in?
- Motors & Generators, SIC code 3621.
- What is American Superconductor Corp's website?
- amsc.com. Investor relations: https://www.amsc.com/investors/.
- When does American Superconductor Corp report earnings next?
- February 3, 2027. Source: estimate_8k_pattern.
- Is American Superconductor Corp a public company?
- Yes. American Superconductor Corp files with the SEC under CIK 0000880807 and trades as AMSC.
- Who audits American Superconductor Corp?
- Rsm Us LLP, Boston, MA, as named in its latest annual report (10-K).
- How many shares of American Superconductor Corp are outstanding?
- 48.5 million shares as of October 30, 2026, from its 10-Q filed November 4, 2026.
- What is American Superconductor Corp's public float?
- $2.6B as of September 30, 2025, as reported on the cover of its 10-K filed May 27, 2026.
- How many business segments does American Superconductor Corp report?
- 2 reportable segments for the period ending September 30, 2026, from its 10-Q filed November 4, 2026.
- When is American Superconductor Corp's annual shareholder meeting?
- July 31, 2026, per its proxy statement (DEF 14A) filed June 18, 2026.
- Have American Superconductor Corp insiders traded stock recently?
- Since August 4, 2025, officers and directors reported 11 open-market sales worth about $17.1M and 0 purchases on Forms 4 and 5. The most recent: Laura A. Dambier (Director) sold 4,000 shares on June 11, 2026.