American Superconductor Ownership

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

Recent Insider Transactions

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of AMSC?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	478	0.00132%
Individual Insiders	1,634,168	4.52%
Hedge Funds	2,228,301	6.17%
Institutions	13,951,236	38.6%
General Public	18,322,164	50.7%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 22.4%.

Top Shareholders

Top 25 shareholders own 42.42% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
6.17%	AWM Investment Company Inc	2,228,301	US$26.6m	20.2%	3.97%
5.77%	Baillie Gifford & Co.	2,086,279	US$24.9m	39.9%	0.01%
3.6%	The Vanguard Group, Inc.	1,302,120	US$15.6m	1.15%	no data
3.45%	Royce & Associates, LP	1,245,860	US$14.9m	-0.03%	0.13%
3.01%	Daniel McGahn	1,088,672	US$13.0m	0%	no data
2.39%	Invesco Capital Management LLC	864,914	US$10.3m	-0.93%	0.01%
1.89%	Dimensional Fund Advisors LP	683,698	US$8.2m	-1.21%	no data
1.73%	Essex Investment Management Company, LLC	624,018	US$7.5m	-11%	1.46%
1.7%	BlackRock, Inc.	613,300	US$7.3m	6.15%	no data
1.21%	D. E. Shaw & Co., L.P.	435,744	US$5.2m	16.5%	0.01%
1.19%	ArrowMark Colorado Holdings, LLC	431,432	US$5.2m	13.1%	0.06%
1.14%	Millennium Management LLC	412,767	US$4.9m	-22.7%	no data
1.07%	John Kosiba	385,258	US$4.6m	0%	no data
1.04%	Oberweis Asset Management, Inc.	375,800	US$4.5m	0%	0.26%
0.94%	State Street Global Advisors, Inc.	339,357	US$4.1m	213%	no data
0.83%	Laurion Capital Management LP	300,323	US$3.6m	0%	0.13%
0.82%	Geode Capital Management, LLC	294,961	US$3.5m	1.93%	no data
0.73%	Citadel Advisors LLC	262,230	US$3.1m	118%	no data
0.66%	First Trust Advisors LP	237,235	US$2.8m	-10.4%	no data
0.64%	Qube Research & Technologies Ltd	231,634	US$2.8m	95.4%	0.01%
0.59%	Jane Street Group, LLC, Asset Management Arm	213,499	US$2.6m	0%	no data
0.54%	CM Management, LLC	195,000	US$2.3m	-2.5%	2.27%
0.48%	Susquehanna International Group, LLP, Asset Management Arm	172,225	US$2.1m	85.5%	no data
0.44%	Morgan Stanley, Investment Banking and Brokerage Investments	158,490	US$1.9m	89.7%	no data
0.4%	Bridgeway Capital Management, LLC	144,700	US$1.7m	103%	0.03%