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American Superconductor Corporation (AMSC)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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13.37+0.38 (+2.93%)
At close: 04:00PM EDT
13.37 0.00 (0.00%)
After hours: 07:31PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
4.54%% of shares held by all insiders
49.42%% of shares held by institutions
51.78%% of float held by institutions
130Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
Baillie Gifford and Company2,526,55030 Mar 20248.22%33,779,973
AWM Investment Company, Inc.2,228,30130 Dec 20237.25%29,792,384
Vanguard Group Inc1,302,12030 Dec 20234.24%17,409,344
Royce & Associates LP1,245,86030 Dec 20234.05%16,657,148
Invesco Ltd.864,91430 Dec 20232.81%11,563,900
Dimensional Fund Advisors LP683,69830 Dec 20232.22%9,141,042
Essex Investment Management Co LLC624,01830 Dec 20232.03%8,343,120
Blackrock Inc.613,30030 Dec 20232.00%8,199,820
Shaw D.E. & Co., Inc.435,74430 Dec 20231.42%5,825,897
ArrowMark Colorado Holdings LLC431,43230 Dec 20231.40%5,768,245

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund824,75630 Dec 20232.68%11,026,987
Royce Opportunity Fund435,49930 Dec 20231.42%5,822,621
Meridian Contrarian Fund431,43230 Dec 20231.40%5,768,245
Vanguard Extended Market Index Fund431,48030 Dec 20231.40%5,768,887
Oberweis Micro-Cap Portfolio375,80030 Dec 20231.22%5,024,445
Invesco ETF Tr-Invesco Wilderhill Clean Energy ETF371,96730 Mar 20241.21%4,973,198
Invesco ETF Tr II-Invesco DWA Small Cap Momentum ETF269,13730 Mar 20240.88%3,598,361
Old Westbury Small & Mid Cap Strategies Fund260,74130 Jan 20240.85%3,486,107
Royce Micro-Cap Fund248,80030 Dec 20230.81%3,326,455
Invesco ETF Tr-Invesco DWA Industrials Momentum ETF220,09930 Mar 20240.72%2,942,723