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American Superconductor (AMSC) Institutional Ownership

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$39.17 -0.55 (-1.38%)
Closing price 07/11/2025 04:00 PM Eastern
Extended Trading
$39.52 +0.35 (+0.90%)
As of 07/11/2025 07:50 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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Institutional Ownership Changes (13F Filings) for American Superconductor (NASDAQ:AMSC)

Current
Institutional Ownership
Percentage
52.28%
Number of
Institutional Buyers
(last 12 months)
124
Total
Institutional Inflows
(last 12 months)
$209.45M
Number of
Institutional Sellers
(last 12 months)
59
Total
Institutional Outflows
(last 12 months)
$136.00M
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Skip Chart & View Institutional Buying and Selling Data

AMSC Institutional Buying and Selling by Quarter

American Superconductor Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
7/11/2025Diversified Trust Co8,624$316K0.0%N/A0.022%
7/11/2025Assenagon Asset Management S.A.6,224$228K0.0%N/A0.016%
7/10/2025 Andrew Hill Investment Advisors Inc.152,779$5.61M4.5%+109.6%0.387%
7/2/2025 Capital Market Strategies LLC11,688$429K0.3%-11.4%0.030%
6/18/2025Voya Investment Management LLC19,199$348K0.0%+81.0%0.049%
6/3/2025Inspire Investing LLC38,556$699K0.1%N/A0.098%
5/29/2025Rhumbline Advisers49,173$892K0.0%-3.8%0.124%
5/28/2025Strs Ohio20,900$379K0.0%N/A0.053%
5/16/2025Goldman Sachs Group Inc.481,961$8.74M0.0%+54.6%1.220%
5/16/2025Jones Financial Companies Lllp99,994$1.81M0.0%+3,280.5%0.253%
5/16/2025NewEdge Advisors LLC18,833$342K0.0%-29.9%0.048%
5/16/2025Millennium Management LLC225,682$4.09M0.0%+878.5%0.572%
5/16/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.25,295$459K0.0%+13.4%0.064%
5/16/2025Bosun Asset Management LLC42,510$771K0.3%-21.6%0.108%
5/16/2025AQR Capital Management LLC211,164$3.83M0.0%-17.6%0.535%
5/16/2025AWM Investment Company Inc.1,558,478$28.27M3.9%+3.0%3.950%
5/16/2025Amundi49,764$830K0.0%-5.9%0.126%
5/15/2025Atreides Management LP824,040$14.95M0.5%N/A2.088%
5/15/2025Cubist Systematic Strategies LLC109,285$1.98M0.0%N/A0.277%
5/15/2025Royal Bank of Canada26,190$475K0.0%+27.5%0.066%
5/15/2025Baird Financial Group Inc.85,766$1.56M0.0%+26.2%0.217%
5/15/2025Panagora Asset Management Inc.145,314$2.64M0.0%+97.4%0.368%
5/15/2025Driehaus Capital Management LLC839,843$15.24M0.1%-10.9%2.128%
5/15/2025Trexquant Investment LP242,369$4.40M0.1%N/A0.614%
5/14/2025Truvestments Capital LLC11,176$203K0.0%N/A0.028%
5/14/2025Ieq Capital LLC13,006$236K0.0%-43.0%0.033%
5/14/2025Hsbc Holdings PLC25,430$458K0.0%+46.3%0.064%
5/14/2025Wellington Management Group LLP289,173$5.25M0.0%-37.3%0.733%
5/13/2025Algert Global LLC95,658$1.74M0.0%+52.9%0.242%
5/13/2025Fox Run Management L.L.C.28,719$521K0.1%N/A0.073%
5/13/2025Sei Investments Co.53,070$963K0.0%+1.9%0.134%
5/12/2025Nuveen LLC778,566$14.12M0.0%N/A1.973%
5/12/2025Invesco Ltd.243,523$4.42M0.0%+23.1%0.617%
5/12/2025Connor Clark & Lunn Investment Management Ltd.108,571$1.97M0.0%-60.8%0.275%
5/12/2025National Bank of Canada FI9,506$172K0.0%+27.9%0.024%
5/12/2025Swiss National Bank72,600$1.32M0.0%-3.6%0.184%
5/9/2025Deutsche Bank AG29,835$541K0.0%-9.4%0.076%
5/9/2025Charles Schwab Investment Management Inc.309,681$5.62M0.0%-2.6%0.785%
5/9/2025Vanguard Group Inc.2,287,585$41.50M0.0%+2.9%5.797%
5/8/2025XTX Topco Ltd16,269$295K0.0%N/A0.041%
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5/8/2025GSA Capital Partners LLP31,006$562K0.1%-10.5%0.079%
5/7/2025Essex Investment Management Co. LLC372,221$6.75M1.4%-13.4%0.943%
5/7/2025Zurcher Kantonalbank Zurich Cantonalbank 14,916$271K0.0%+22.3%0.038%
5/7/2025Baillie Gifford & Co.1,518,890$27.55M0.0%-7.9%3.849%
5/6/2025Royce & Associates LP867,342$15.73M0.2%+3.4%2.198%
5/6/2025Journey Strategic Wealth LLC17,542$318K0.0%N/A0.044%
5/6/2025Legato Capital Management LLC44,363$805K0.1%-18.3%0.112%
5/5/2025Kestra Private Wealth Services LLC10,331$187K0.0%N/A0.026%
5/5/2025Hussman Strategic Advisors Inc.21,000$381K0.1%-66.7%0.053%
5/2/2025Acas LLC10,165$184K0.1%N/A0.026%
5/1/2025CWM LLC7,915$144K0.0%+49.5%0.020%
5/1/2025Emerald Advisers LLC38,719$702K0.0%+37.7%0.098%
5/1/2025Emerald Mutual Fund Advisers Trust12,597$229K0.0%+52.2%0.032%
4/30/2025Alps Advisors Inc.59,464$1.08M0.0%+2.0%0.151%
4/30/2025Palisades Investment Partners LLC144,604$2.62M1.3%+1.5%0.366%
4/29/2025Bank of New York Mellon Corp107,946$1.96M0.0%-0.6%0.274%
4/24/2025Allspring Global Investments Holdings LLC341,030$6.28M0.0%-9.6%0.864%
4/23/2025Oppenheimer & Co. Inc.10,000$181K0.0%-20.0%0.025%
4/22/2025Cambridge Investment Research Advisors Inc.37,723$684K0.0%+12.7%0.096%
4/22/2025PFG Investments LLC18,900$343K0.0%+66.5%0.048%
4/17/2025Sowell Financial Services LLC16,459$299K0.0%+9.2%0.042%
4/15/2025SG Americas Securities LLC15,839$287K0.0%+104.8%0.040%
4/14/2025 Range Financial Group LLC44,925$815K0.4%+6.9%0.114%
4/8/2025Rhumbline Advisers49,173$892K0.0%-3.8%0.125%
4/8/2025 Andrew Hill Investment Advisors Inc.72,891$1.32M1.3%-36.6%0.185%
4/7/2025GoalVest Advisory LLC18,900$343K0.1%-5.5%0.048%
4/7/2025GAMMA Investing LLC8,453$153K0.0%+3,089.8%0.021%
4/4/2025 Capital Market Strategies LLC13,188$239K0.2%N/A0.033%
3/24/2025Wellington Management Group LLP461,230$11.36M0.0%N/A1.169%
3/18/2025California State Teachers Retirement System35,559$876K0.0%+2.0%0.090%
2/25/2025Heck Capital Advisors LLC11,312$279K0.0%N/A0.029%
2/18/2025Palisades Investment Partners LLC142,415$3.51M1.5%+9.5%0.361%
2/18/2025AWM Investment Company Inc.1,513,478$37.28M4.5%-12.0%3.835%
2/17/2025UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC73,274$1.81M0.0%+21.5%0.186%
2/17/2025Two Sigma Investments LP18,222$449K0.0%-3.3%0.046%
2/17/2025Main Management ETF Advisors LLC31,328$772K0.0%-8.2%0.079%
2/17/2025Man Group plc12,051$297K0.0%-64.8%0.031%
2/17/2025Nuveen Asset Management LLC878,624$21.64M0.0%-14.7%2.227%
2/17/2025Millennium Management LLC23,065$568K0.0%-91.2%0.058%
2/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.22,306$549K0.0%+18.6%0.057%
2/17/2025Gen Wealth Partners Inc2,355$58K0.0%N/A0.006%
2/17/2025Deutsche Bank AG32,913$811K0.0%+43.8%0.083%
2/17/2025Driehaus Capital Management LLC942,698$23.22M0.2%+18.0%2.389%
2/17/2025Bridgeway Capital Management LLC26,791$660K0.0%-73.1%0.068%
2/17/2025Bosun Asset Management LLC54,239$1.34M0.6%+8.9%0.137%
2/17/2025Baird Financial Group Inc.67,945$1.67M0.0%N/A0.172%
2/17/2025Balyasny Asset Management L.P.238,992$5.89M0.0%N/A0.606%
2/17/2025BNP Paribas Financial Markets12,339$304K0.0%-45.6%0.031%
2/17/2025Ameriprise Financial Inc.69,281$1.71M0.0%-11.7%0.176%
2/17/2025Algert Global LLC62,558$1.54M0.0%N/A0.159%
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2/17/2025ArrowMark Colorado Holdings LLC146,432$3.61M0.0%-28.7%0.371%
2/14/2025Itau Unibanco Holding S.A.12,447$314K0.0%N/A0.032%
2/14/2025AQR Capital Management LLC256,230$6.31M0.0%+143.5%0.649%
2/14/2025Emerald Mutual Fund Advisers Trust8,277$204K0.0%N/A0.021%
2/14/2025Northern Trust Corp327,805$8.07M0.0%+8.9%0.831%
2/14/2025KP Management LLC95,000$2.34M0.7%N/A0.241%
2/14/2025Voya Investment Management LLC10,605$261K0.0%-5.0%0.027%
2/14/2025Hood River Capital Management LLC1,236,146$30.45M0.4%-13.7%3.133%
2/14/2025Price T Rowe Associates Inc. MD22,600$557K0.0%+10.4%0.057%
2/14/2025Hsbc Holdings PLC17,379$429K0.0%+20.3%0.044%
(Data available from 1/1/2016 forward)

AMSC Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of AMSC shares?

During the previous two years, 159 institutional investors and hedge funds held shares of American Superconductor. The most heavily invested institutionals were Vanguard Group Inc. ($41.50M), Hood River Capital Management LLC ($30.45M), AWM Investment Company Inc. ($28.27M), Baillie Gifford & Co. ($27.55M), Nuveen Asset Management LLC ($21.64M), State Street Corp ($21.39M), and Geode Capital Management LLC ($21.10M).Learn more on American Superconductor's institutional investors.

What percentage of American Superconductor's stock is owned by institutional investors?

52.28% of American Superconductor's stock is owned by institutional investors. Learn more on AMSC's institutional investor holdings.

Which institutional investors have been buying American Superconductor's stock?

Of the 144 institutional investors that purchased American Superconductor's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Hood River Capital Management LLC ($1.74M), Assenagon Asset Management S.A. ($1.09M), Baillie Gifford & Co. ($1.04M), Wellington Management Group LLP ($922.46K), Atreides Management LP ($824.04K), Nuveen LLC ($778.57K), and Essex Investment Management Co. LLC ($700.83K).

How much institutional buying is happening at American Superconductor?

Institutional investors have bought a total of 9,382,528 shares in the last 24 months. This purchase volume represents approximately $209.45M in transactions.

Which of American Superconductor's major shareholders have been selling company stock?

Of the 59 institutional investors that sold American Superconductor's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Baillie Gifford & Co. ($1.01M), Assenagon Asset Management S.A. ($953.68K), Connor Clark & Lunn Investment Management Ltd. ($414.34K), Millennium Management LLC ($363.95K), Invesco Ltd. ($340.62K), AWM Investment Company Inc. ($205.59K), and Essex Investment Management Co. LLC ($205.41K).

How much institutional selling is happening at American Superconductor?

Institutional investors have sold a total of 5,844,037 shares in the last 24 months. This volume of shares sold represents approximately $136.00M in transactions.


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This page (NASDAQ:AMSC) was last updated on 7/13/2025 by MarketBeat.com Staff
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