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American Superconductor Corporation (AMSC)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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12.99+0.35 (+2.77%)
At close: 04:00PM EDT
13.14 +0.15 (+1.15%)
After hours: 06:01PM EDT
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
4.54%% of shares held by all insiders
49.10%% of shares held by institutions
51.44%% of float held by institutions
129Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
Baillie Gifford and Company2,526,55030 Mar 20248.22%32,819,883
AWM Investment Company, Inc.2,228,30130 Dec 20237.25%28,945,629
Vanguard Group Inc1,302,12030 Dec 20234.24%16,914,538
Royce & Associates LP1,245,86030 Dec 20234.05%16,183,721
Invesco Ltd.864,91430 Dec 20232.81%11,235,232
Dimensional Fund Advisors LP683,69830 Dec 20232.22%8,881,236
Essex Investment Management Co LLC624,01830 Dec 20232.03%8,105,993
Blackrock Inc.613,30030 Dec 20232.00%7,966,766
Shaw D.E. & Co., Inc.435,74430 Dec 20231.42%5,660,314
ArrowMark Colorado Holdings LLC431,43230 Dec 20231.40%5,604,301

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Total Stock Market Index Fund824,75630 Dec 20232.68%10,713,580
Invesco ETF Tr-Invesco Wilderhill Clean Energy ETF579,06928 Feb 20241.88%7,522,106
Royce Opportunity Fund435,49930 Dec 20231.42%5,657,131
Meridian Contrarian Fund431,43230 Dec 20231.40%5,604,301
Vanguard Extended Market Index Fund431,48030 Dec 20231.40%5,604,925
Oberweis Micro-Cap Portfolio375,80030 Dec 20231.22%4,881,641
Invesco ETF Tr II-Invesco DWA Small Cap Momentum ETF269,13730 Mar 20240.88%3,496,089
Old Westbury Small & Mid Cap Strategies Fund260,74130 Jan 20240.85%3,387,025
Royce Micro-Cap Fund248,80030 Dec 20230.81%3,231,911
Invesco ETF Tr-Invesco DWA Industrials Momentum ETF220,09930 Mar 20240.72%2,859,085