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American Superconductor (AMSC) Institutional Ownership

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$56.24 -3.55 (-5.94%)
Closing price 10/10/2025 04:00 PM Eastern
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$55.24 -1.00 (-1.77%)
As of 10/10/2025 07:57 PM Eastern
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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)
162
Total
Institutional Inflows
(last 12 months)
$282.97M
Number of
Institutional Sellers
(last 12 months)
64
Total
Institutional Outflows
(last 12 months)
$140.19M
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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
10/9/2025 Toth Financial Advisory Corp6,000$356K0.0%N/A0.013%
10/9/2025 Voya Investment Management LLC14,229$845K0.0%-29.0%0.032%
10/7/2025 Assenagon Asset Management S.A.10,031$596K0.0%+61.2%0.022%
9/4/2025Osaic Holdings Inc.151,278$5.55M0.0%+40.8%0.335%
8/27/2025Orion Porfolio Solutions LLC6,112$224K0.0%N/A0.014%
8/27/2025Squarepoint Ops LLC147,224$5.40M0.0%+223.7%0.326%
8/19/2025Advisory Services Network LLC16,779$616K0.0%+19.7%0.037%
8/18/2025Castleark Management LLC109,170$4.01M0.1%N/A0.242%
8/15/2025Tower Research Capital LLC TRC 5,762$211K0.0%+304.4%0.013%
8/15/2025Two Sigma Securities LLC7,642$280K0.0%-27.2%0.017%
8/15/2025Shay Capital LLC19,500$715K0.1%N/A0.043%
8/15/2025Orion Porfolio Solutions LLC6,112$224K0.0%N/A0.014%
8/15/2025Man Group plc18,903$694K0.0%+52.2%0.042%
8/15/2025Lazard Asset Management LLC6,093$223K0.0%N/A0.013%
8/15/2025Great Valley Advisor Group Inc.7,235$265K0.0%N/A0.016%
8/15/2025Garden State Investment Advisory Services LLC5,897$216K0.1%N/A0.013%
8/15/2025BNP Paribas Financial Markets7,801$286K0.0%+33.8%0.017%
8/15/2025Balyasny Asset Management L.P.75,303$2.76M0.0%+239.1%0.167%
8/15/2025Bank of America Corp DE169,141$6.21M0.0%+204.6%0.375%
8/15/2025AQR Capital Management LLC168,890$6.20M0.0%-20.0%0.374%
8/14/2025Atreides Management LP1,104,458$40.52M1.1%+34.0%2.446%
8/14/2025California State Teachers Retirement System50,769$1.86M0.0%+42.8%0.112%
8/14/2025Raymond James Financial Inc.166,914$6.12M0.0%+5.7%0.370%
8/14/2025Canada Pension Plan Investment Board2,000$73K0.0%+100.0%0.004%
8/14/2025Bayesian Capital Management LP13,000$477K0.1%N/A0.029%
8/14/2025Occudo Quantitative Strategies LP10,949$402K0.0%N/A0.024%
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.24,700$906K0.0%-2.4%0.055%
8/14/2025The Manufacturers Life Insurance Company 13,705$503K0.0%+10.1%0.030%
8/14/2025Squarepoint Ops LLC147,224$5.40M0.0%+223.7%0.326%
8/14/2025Sei Investments Co.42,073$1.54M0.0%-20.7%0.093%
8/14/2025Qube Research & Technologies Ltd130,120$4.77M0.0%-68.2%0.288%
8/14/2025Hood River Capital Management LLC1,168,906$42.89M0.6%-5.7%2.588%
8/13/2025Jump Financial LLC128,635$4.72M0.1%N/A0.285%
8/13/2025Bosun Asset Management LLC47,221$1.73M0.5%+11.1%0.105%
8/13/2025Nkcfo LLC21,000$770K0.3%N/A0.047%
8/13/2025Amundi43,895$1.72M0.0%-11.8%0.097%
8/13/2025Baird Financial Group Inc.83,082$3.05M0.0%-3.1%0.184%
8/13/2025First Trust Advisors LP337,574$12.39M0.0%+2.1%0.748%
8/13/2025Kennedy Capital Management LLC146,209$5.36M0.1%+661.3%0.324%
8/13/2025Invesco Ltd.159,292$5.84M0.0%-34.6%0.353%
8/13/2025Arrowstreet Capital Limited Partnership236,396$8.67M0.0%N/A0.523%
8/13/2025Quantbot Technologies LP7,502$275K0.0%N/A0.017%
8/13/2025Panagora Asset Management Inc.171,988$6.31M0.0%+18.4%0.381%
8/13/2025Lumbard & Kellner LLC72,439$2.66M1.2%N/A0.160%
8/13/2025Virtus Advisers LLC1,887$69K0.1%N/A0.004%
8/13/2025New York State Common Retirement Fund69,336$2.54M0.0%+4.2%0.154%
8/13/2025Quadrature Capital Ltd8,533$313K0.0%N/A0.019%
8/13/2025Hsbc Holdings PLC23,010$845K0.0%-9.5%0.051%
8/13/2025Russell Investments Group Ltd.7,736$284K0.0%+4,765.4%0.017%
8/12/2025XTX Topco Ltd42,213$1.55M0.1%+159.5%0.093%
8/12/2025Steward Partners Investment Advisory LLC2,625$96K0.0%N/A0.006%
8/12/2025Ameritas Investment Partners Inc.3,900$143K0.0%+16.6%0.009%
8/12/2025Prudential Financial Inc.35,170$1.29M0.0%N/A0.078%
8/12/2025Rhumbline Advisers61,162$2.24M0.0%+24.4%0.135%
8/12/2025Franklin Resources Inc.50,515$1.85M0.0%+14.5%0.112%
8/12/2025Legal & General Group Plc417,039$15.30M0.0%+14.4%0.923%
8/12/2025Hillsdale Investment Management Inc.220,000$8.07M0.3%+15.5%0.487%
8/12/2025JPMorgan Chase & Co.55,637$2.04M0.0%-4.8%0.123%
8/12/2025Telemark Asset Management LLC690,000$25.32M2.3%+15.0%1.528%
8/12/2025Entropy Technologies LP8,897$326K0.0%N/A0.020%
8/12/2025Swiss National Bank83,300$3.06M0.0%+14.7%0.184%
8/11/2025Dorsey & Whitney Trust CO LLC21,611$793K0.0%-52.3%0.048%
8/11/2025Universal Beteiligungs und Servicegesellschaft mbH9,913$364K0.0%N/A0.022%
8/11/2025Integrated Quantitative Investments LLC11,784$432K0.1%-34.9%0.026%
8/8/2025Kingsview Wealth Management LLC5,670$208K0.0%N/A0.013%
8/8/2025Cetera Investment Advisers6,046$222K0.0%N/A0.013%
8/8/2025Intech Investment Management LLC26,358$967K0.0%+39.8%0.058%
8/8/2025Creative Planning5,681$208K0.0%N/A0.013%
8/8/2025SG Americas Securities LLC7,592$279K0.0%-52.1%0.017%
8/8/2025Police & Firemen s Retirement System of New Jersey8,777$322K0.0%+10.4%0.019%
8/8/2025Geode Capital Management LLC940,111$34.50M0.0%+6.6%2.082%
8/8/2025PNC Financial Services Group Inc.4,000$147K0.0%+16,566.7%0.009%
8/8/2025SBI Securities Co. Ltd.3,867$142K0.0%+65.3%0.009%
8/7/2025ProShare Advisors LLC9,575$351K0.0%N/A0.021%
8/7/2025Lisanti Capital Growth LLC180,750$6.63M1.8%N/A0.400%
8/7/2025Mitsubishi UFJ Asset Management Co. Ltd.13,139$482K0.0%+41.4%0.029%
8/6/2025Fox Run Management L.L.C.37,505$1.38M0.2%+30.6%0.083%
8/6/2025Penserra Capital Management LLC68,312$2.51M0.0%N/A0.151%
8/6/2025Cornerstone Investment Partners LLC6,667$245K0.0%N/A0.015%
8/6/2025Savant Capital LLC5,943$218K0.0%-57.6%0.013%
8/6/2025ROI Financial Advisors LLC7,121$261K0.2%N/A0.016%
8/5/2025GPS Wealth Strategies Group LLC10,302$378K0.0%+9.0%0.023%
8/5/2025C2P Capital Advisory Group LLC d.b.a. Prosperity Capital Advisors6,879$252K0.0%N/A0.015%
8/4/2025Emerald Mutual Fund Advisers Trust213,914$7.85M0.5%+1,598.1%0.474%
8/4/2025Emerald Advisers LLC500,054$18.35M0.7%+1,191.5%1.107%
8/4/2025Mayflower Financial Advisors LLC5,730$210K0.0%N/A0.013%
8/1/2025Teacher Retirement System of Texas5,985$220K0.0%N/A0.015%
8/1/2025GoalVest Advisory LLC18,400$675K0.2%-2.6%0.047%
7/31/2025Kornitzer Capital Management Inc. KS36,660$1.35M0.0%N/A0.093%
7/30/2025Cookson Peirce & Co. Inc.20,000$734K0.0%N/A0.051%
7/30/2025FNY Investment Advisers LLC20,000$733K0.3%N/A0.051%
7/29/2025Stephens Inc. AR8,000$294K0.0%N/A0.020%
7/25/2025Allspring Global Investments Holdings LLC273,396$9.84M0.0%-19.8%0.692%
7/25/2025Prostatis Group LLC7,273$267K0.1%N/A0.018%
7/25/2025CWM LLC7,149$262K0.0%-9.7%0.018%
7/23/2025KLP Kapitalforvaltning AS9,400$345K0.0%+36.2%0.024%
7/18/2025Truist Financial Corp22,270$817K0.0%+117.6%0.056%
7/17/2025Campbell Newman Asset Management Inc.65,011$2.39M0.2%+7.2%0.165%
7/17/2025Janney Montgomery Scott LLC45,761$1.68M0.0%N/A0.116%
7/17/2025Palisades Investment Partners LLC140,498$5.16M2.3%-2.8%0.356%
(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, 201 institutional investors and hedge funds held shares of American Superconductor. The most heavily invested institutionals were Hood River Capital Management LLC ($42.89M), Vanguard Group Inc. ($41.50M), Atreides Management LP ($40.52M), Geode Capital Management LLC ($34.50M), AWM Investment Company Inc. ($28.27M), Baillie Gifford & Co. ($27.55M), and Telemark Asset Management LLC ($25.32M).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 185 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), Atreides Management LP ($1.10M), Assenagon Asset Management S.A. ($1.09M), Baillie Gifford & Co. ($1.04M), Wellington Management Group LLP ($922.46K), 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 10,757,923 shares in the last 24 months. This purchase volume represents approximately $282.97M in transactions.

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

Of the 64 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: Assenagon Asset Management S.A. ($953.68K), Baillie Gifford & Co. ($695.19K), Invesco Ltd. ($424.85K), Connor Clark & Lunn Investment Management Ltd. ($414.34K), Qube Research & Technologies Ltd ($279.29K), Hood River Capital Management LLC ($265.98K), and Millennium Management LLC ($239.13K).

How much institutional selling is happening at American Superconductor?

Institutional investors have sold a total of 5,661,027 shares in the last 24 months. This volume of shares sold represents approximately $140.19M in transactions.


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This page (NASDAQ:AMSC) was last updated on 10/11/2025 by MarketBeat.com Staff
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