American Superconductor Corporation

NasdaqGS:AMSC Stock Report

Market Cap: US$1.2b

American Superconductor Ownership

Who are the major shareholders and have insiders been buying or selling?


Recent Insider Transactions

NasdaqGS:AMSC Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
04 Nov 24SellUS$1,414,095John KosibaIndividual50,000US$28.28

Insider Trading Volume

Insider Buying: AMSC insiders have only sold shares in the past 3 months.


Ownership Breakdown

What is the ownership structure of AMSC?
Owner TypeNumber of SharesOwnership Percentage
Individual Insiders1,737,9704.41%
General Public9,964,37425.3%
Institutions27,750,87170.3%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 30.1%.


Top Shareholders

Top 25 shareholders own 57.88% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
6.9%
BlackRock, Inc.
2,720,783US$84.8m6.95%no data
6.15%
The Vanguard Group, Inc.
2,426,278US$75.6m16.3%no data
5.34%
Baillie Gifford & Co.
2,106,395US$65.6m-4.86%0.03%
4.36%
AWM Investment Company Inc
1,719,067US$53.6m-20.2%5.83%
3.63%
Hood River Capital Management LLC
1,431,940US$44.6m-17.5%0.66%
3.07%
Daniel McGahn
1,212,238US$37.8m17.5%no data
2.61%
Teachers Insurance and Annuity Association-College Retirement Equities Fund
1,030,310US$32.1m263%0.01%
2.52%
Macquarie Investment Management Business Trust
995,566US$31.0m0%0.03%
2.42%
Royce & Associates, LP
955,174US$29.8m-2.83%0.24%
2.3%
State Street Global Advisors, Inc.
906,250US$28.2m18.3%no data
2.15%
Geode Capital Management, LLC
847,412US$26.4m4.5%no data
2.02%
Driehaus Capital Management LLC
798,762US$24.9m-13.4%0.14%
1.68%
Oberweis Asset Management, Inc.
664,400US$20.7m0%0.77%
1.54%
Dimensional Fund Advisors LP
607,945US$18.9m14.2%no data
1.52%
Telemark Asset Management, LLC
600,000US$18.7m0%1.77%
1.32%
Invesco Capital Management LLC
521,271US$16.2m-20.2%0.01%
1.18%
Essex Investment Management Company, LLC
464,506US$14.5m-19.6%2.28%
1.1%
Allspring Global Investments, LLC
434,145US$13.5m0%0.02%
1.08%
Connor, Clark & Lunn Investment Management Ltd.
426,261US$13.3m-18.5%0.06%
0.93%
John Kosiba
365,494US$11.4m-12%no data
0.91%
Tidal Investments LLC
359,400US$11.2m0%0.11%
0.87%
Legal & General Investment Management Limited
341,357US$10.6m6,210%no data
0.77%
Charles Schwab Investment Management, Inc.
304,528US$9.5m211%no data
0.76%
Northern Trust Global Investments
300,986US$9.4m243%no data
0.75%
Citadel Advisors LLC
296,057US$9.2m-22.3%0.01%