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American Superconductor Corporation (AMSC)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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13.52-0.29 (-2.10%)
At close: 04:00PM EDT
13.56 +0.04 (+0.30%)
After hours: 07:19PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
4.54%% of shares held by all insiders
49.86%% of shares held by institutions
52.23%% 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%34,158,957
AWM Investment Company, Inc.2,228,30130 Dec 20237.25%30,126,630
Vanguard Group Inc1,302,12030 Dec 20234.24%17,604,662
Royce & Associates LP1,245,86030 Dec 20234.05%16,844,027
Invesco Ltd.864,91430 Dec 20232.81%11,693,637
Dimensional Fund Advisors LP683,69830 Dec 20232.22%9,243,597
Blackrock Inc.613,30030 Dec 20232.00%8,291,816
Essex Investment Management Co LLC583,92430 Mar 20241.90%7,894,652
Shaw D.E. & Co., Inc.435,74430 Dec 20231.42%5,891,259
ArrowMark Colorado Holdings LLC431,43230 Dec 20231.40%5,832,960

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund824,75630 Dec 20232.68%11,150,701
Royce Opportunity Fund435,49930 Dec 20231.42%5,887,946
Meridian Contrarian Fund431,43230 Dec 20231.40%5,832,960
Vanguard Extended Market Index Fund431,48030 Dec 20231.40%5,833,609
Oberweis Micro-Cap Portfolio375,80030 Dec 20231.22%5,080,816
Invesco ETF Tr-Invesco Wilderhill Clean Energy ETF371,96730 Mar 20241.21%5,028,994
Invesco ETF Tr II-Invesco DWA Small Cap Momentum ETF269,13730 Mar 20240.88%3,638,732
Old Westbury Small & Mid Cap Strategies Fund260,74130 Jan 20240.85%3,525,218
Royce Micro-Cap Fund248,80030 Dec 20230.81%3,363,776
Invesco ETF Tr-Invesco DWA Industrials Momentum ETF220,09930 Mar 20240.72%2,975,738