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NASDAQ · Consumer discretionary

American Superconductor Corp (AMSC)

American Superconductor Corp brought in $349M of revenue over the twelve months to September 30, 2026, up 31.1% from a year earlier. Net income was $134.8M, a net margin of 38.6%. Operating cash flow minus capital spending left $18.3M of free cash flow in fiscal 2026. At September 30, 2026 it held $169.9M in cash. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on November 4, 2026.

Free, no password. An email when AMSC files with the SEC.

Price
$25.33
+8.29% on the day · November 9, 2026
52-week range $22.16 to $60.18
Market cap
$1.2B
Revenue (last 12 months)
$349M
+31.1% year on year
Net margin
38.6%
P/E
8.3
on FY2026 diluted EPS

Key facts about American Superconductor Corp

Net worth
American Superconductor Corp has a market value (market cap) of $1.2B at the latest share price, and shareholders' equity of $582.1M on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
Revenue and profit
In fiscal 2026 revenue was $299.2M (+34.3% year on year), with net income of $133.8M. Over the 12 months to September 30, 2026: revenue $349M, net income $134.8M.
Cash flow
In fiscal 2026 operations brought in $23.1M of cash; after $4.9M of capital spending, free cash flow was $18.3M.
Latest report
The latest periodic report (quarterly report, 10-Q) was filed with the SEC on November 4, 2026 and covers the period to September 30, 2026. Open on SEC EDGAR
Next earnings report
American Superconductor Corp's next report is expected around February 3, 2027. That is an estimate from its filing rhythm, not a date the company has announced.

What American Superconductor Corp does

American Superconductor Corp is registered with the SEC under industry code SIC 3621 (Motors & Generators). Its shares trade on NASDAQ under the ticker AMSC.

Revenue and profit by year

Revenue
FY18: $56.2M $56.2M FY18FY20: $63.8M $63.8M FY20FY21: $87.1M $87.1M FY21FY22: $108.4M $108.4M FY22FY22: $106M $106M FY22FY24: $145.6M $145.6M FY24FY25: $222.8M $222.8M FY25FY26: $299.2M $299.2M FY26
Net income
FY18: $26.8M $26.8M FY18FY20: -$17.1M -$17.1M FY20FY21: -$22.7M -$22.7M FY21FY22: -$19.2M -$19.2M FY22FY22: -$35M -$35M FY22FY24: -$11.1M -$11.1M FY24FY25: $6M $6M FY25FY26: $133.8M $133.8M FY26

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Fiscal yearRevenueOperating incomeNet incomeDiluted EPSFree cash flow
2026$299.2M$11.4M$133.8M$3.05$18.3M
2025$222.8M-$1.1M$6M$0.16$25.9M
2024$145.6M-$11.4M-$11.1M-$0.37$1.2M
2022$106M-$33M-$35M-$1.26-$23.7M
2022$108.4M-$21.1M-$19.2M-$0.71-$19.9M
2021$87.1M-$23.2M-$22.7M-$0.95-$10.4M

Earnings: every quarter and the next report date

Full financial statements: income, balance sheet and cash flow

Next report expected around February 3, 2027.

Estimated from its filing rhythm: 52 weeks after its report of February 4, 2026. Not a date the company has announced. See the report calendar · Earnings, quarter by quarter

Where AMSC ranks in Consumer discretionary

Revenue$299.2M
#664 of 1077 in Consumer discretionary · Bottom 38%
Revenue growth+34.3%
#78 of 952 in Consumer discretionary · Top 8%
Net margin44.7%
#22 of 968 in Consumer discretionary · Top 2%
Free cash flow margin6.1%
#357 of 853 in Consumer discretionary · Top 42%

Latest fiscal year of every company in the sector with the figure reported. Revenue is ranked among companies reporting in US dollars; growth and margins among companies with at least 10 million of revenue. Consumer discretionary

Latest SEC filings

What American Superconductor Corp has filed recently, newest first. Each links to the original document on SEC EDGAR.

  1. November 4, 2026
    Quarterly report 10-Q · period to September 30, 2026Revenue rose 43% to $94M versus the same quarter last year; diluted EPS $0.06 versus $0.11.
  2. November 4, 2026
  3. September 21, 2026
    Executive or director change8-KBarbara G. Littlefield has resigned from the Board of Directors of American Superconductor Corporation.
  4. August 5, 2026
    Quarterly report 10-Q · period to June 30, 2026Revenue rose 30% to $94.1M versus the same quarter last year; diluted EPS $0.20 versus $0.17.
  5. August 5, 2026
  6. July 31, 2026
  7. June 18, 2026
  8. June 18, 2026
  9. June 18, 2026
  10. June 2, 2026

Recent insider filings (Forms 3, 4 and 144): 10, the latest on September 21, 2026. Insider transactions on SEC

What is AMSC worth? A DCF from its reported cash flow

Insider trades

What the people running American Superconductor Corp did with its shares, from the Form 4 filings they must send the SEC within two business days.

No insider bought or sold shares on the open market in the last 90 days. The 1 reported changes were pay in shares, option exercises, shares withheld for tax or gifts.

Bought (open market)
$0
last 90 days
Sold
$0
last 90 days
DateInsiderWhatSharesPriceValueFiling
September 18, 2026 Littlefield Barbara G.Director Received as pay 1,607 - - Form 4
June 11, 2026 Dambier Laura A.Director Sold 4,000 $37.63 $150.5K Form 4
June 11, 2026 McGahn Daniel PChairman, President and CEO, Director Soldpre-planned (10b5-1) 11,508 $37.28 $429K Form 4
June 11, 2026 McGahn Daniel PChairman, President and CEO, Director Soldpre-planned (10b5-1) 4,609 $37.85 $174.5K Form 4
June 11, 2026 Kosiba John W JRSVP, CFO & Treasurer Soldpre-planned (10b5-1) 5,026 $37.33 $187.6K Form 4
June 11, 2026 Kosiba John W JRSVP, CFO & Treasurer Soldpre-planned (10b5-1) 1,743 $37.85 $66K Form 4
June 8, 2026 McGahn Daniel PChairman, President and CEO, Director Soldpre-planned (10b5-1) 4,992 $41.39 $206.6K Form 4
June 8, 2026 McGahn Daniel PChairman, President and CEO, Director Soldpre-planned (10b5-1) 4,678 $42.19 $197.4K Form 4

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns AMSC

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

No holder of 5% or more has filed about this company in that window.

Latest filings below 5%: Vanguard Capital Management 4.93% (July 31, 2026); The Vanguard Group 0% (March 26, 2026); Baillie Gifford & Co 4.2% (February 12, 2025).

Largest institutional holders

Positions that investment managers reported on Form 13F for the quarter ended June 30, 2026, largest first, with the change on the quarter ended March 31, 2026. Managers file 13F up to 45 days after a quarter ends. 278 managers reported a position.

HolderSharesValueChange on quarter
BlackRock, Inc.4,095,371$170M+112,721
Vanguard Capital Management LLC2,034,219$84.4M-5,249
Barrow Hanley Mewhinney & Strauss LLC1,704,006$70.7M+564,213
UBS Group AG1,429,090$59.3M+829,269
Vanguard Portfolio Management LLC1,418,863$58.9M-292,814
State Street Corp1,358,225$56.4M+97,154
Goldman Sachs Group Inc1,294,047$53.7M+584,543
Geode Capital Management, LLC1,243,198$51.6M+74,046
First Trust Advisors LP1,168,424$48.5M+390,156
Oberweis Asset Management Inc/987,500$41M+137,600
AWM Investment Company, Inc.951,604$39.5M+150,000
Baillie Gifford & Co933,308$38.7M-514,111
Emerald Advisers, LLC843,956$35M+86,552
Legal & General Group Plc756,863$31.4M+226,732
Dimensional Fund Advisors LP645,991$26.8M-12,306
Morgan Stanley635,833$26.4M+1,992
Nuveen, LLC628,406$26.1M-392,541
Telemark Asset Management, LLC600,000$24.9M0
Royce & Associates LP555,821$23.1M+13,043
Emerald Mutual Fund Advisers Trust538,955$22.4M+100,080

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

8 insiders reported holding 1,656,091 shares in total, about $41.9M at the last price.

HolderSharesAs of
McGahn Daniel PChairman, President and CEO, Director 1,131,929 June 11, 2026
Kosiba John W JRSVP, CFO & Treasurer 334,377 June 11, 2026
Oliver David R JrDirector 63,823 April 3, 2026
House Arthur HDirector 51,779 April 3, 2026
Littlefield Barbara G.Director 37,034 September 18, 2026
Klein Margaret D.Director 19,492 April 3, 2026
Dambier Laura A.Director 14,992 June 11, 2026
Donnelly Terence RobertDirector 2,665 April 3, 2026

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about AMSC

What does American Superconductor Corp do?

American Superconductor Corp is a company in the Consumer discretionary sector, listed on NASDAQ as AMSC. Its shares trade on NASDAQ under the ticker AMSC.

What is American Superconductor Corp's net worth?

American Superconductor Corp has a market value (market cap) of $1.2B at the latest share price, and shareholders' equity of $582.1M on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.

Is American Superconductor Corp profitable?

Yes. Over the twelve months to September 30, 2026 it reported net income of $134.8M on revenue of $349M, a net margin of 38.6%.

How much revenue does American Superconductor Corp make?

Over the twelve months to September 30, 2026 American Superconductor Corp reported revenue of $349M. That is 31.1% more than a year earlier.

When did American Superconductor Corp last report?

Its most recent periodic report is the quarterly report (10-Q) filed on November 4, 2026. It covers the period to September 30, 2026.

When is American Superconductor Corp's next earnings report?

American Superconductor Corp's next report is expected around February 3, 2027. That is an estimate from its filing rhythm, not a date the company has announced.

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Where the numbers come from

Financial figures are the values American Superconductor Corp tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.