WallStreetZenWallStreetZen

NASDAQ: AMSC
American Superconductor Corp Stock Ownership - Who owns American Superconductor?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have American Superconductor Corp insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
David R. Oliver Jr.Director2026-02-24200$34.10
$6.82kSell
Arthur H. HouseDirector2025-08-089,703$50.92
$494.08kSell
Arthur H. HouseDirector2025-08-069,703$6.80
$65.98kBuy
Daniel P. McGahnChairman President and CEO2025-08-0473,105$54.26
$3.97MSell
John W. Kosiba Jr.SVP CFO Treasurer2025-08-0434,260$54.34
$1.86MSell
John W. Kosiba Jr.SVP CFO Treasurer2025-08-0415,740$55.13
$867.73kSell
John W. Kosiba Jr.SVP CFO Treasurer2025-08-049,843$55.26
$543.92kSell
Daniel P. McGahnChairman President and CEO2025-08-0427,743$55.11
$1.53MSell
John W. Kosiba Jr.SVP CFO Treasurer2025-06-116,342$28.55
$181.05kSell
Daniel P. McGahnChairman President and CEO2025-06-1112,315$28.56
$351.69kSell

1 of 2

AMSC insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when AMSC insiders and whales buy or sell their stock.

AMSC Shareholders

What type of owners hold American Superconductor Corp stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Kevin Douglas17.43%8,297,712$242.79MInsider
Michelle Douglas8.94%4,257,258$124.57MInsider
Blackrock Inc7.88%3,750,403$109.74MInstitution
Vanguard Group Inc7.41%3,526,632$103.19MInstitution
Baillie Gifford Co3.16%1,506,841$44.09MInstitution
Daniel P. McGahn2.53%1,205,010$35.26MInsider
State Street Corp2.50%1,192,093$34.88MInstitution
Geode Capital Management LLC2.29%1,090,710$31.91MInstitution
Atreides Management LP2.19%1,044,193$30.55MInstitution
Nuveen LLC2.02%960,968$28.12MInstitution

1 of 3

AMSC vs Specialty Industrial Machinery Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AMSC67.99%32.01%Net SellingNet Selling
GRC58.84%41.16%
THR37.24%62.76%Net SellingNet Buying
CYD20.55%0.00%
ENOV41.98%58.02%Net SellingNet Selling
View Top Specialty Industrial Machinery Stocks

American Superconductor Stock Ownership FAQ

Who owns American Superconductor?

American Superconductor (NASDAQ: AMSC) is owned by 69.45% institutional shareholders, 32.69% American Superconductor insiders, and 0.00% retail investors. Kevin Douglas is the largest individual American Superconductor shareholder, owning 8.30M shares representing 17.43% of the company. Kevin Douglas's American Superconductor shares are currently valued at $257.40M.

If you're new to stock investing, here's how to buy American Superconductor stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.