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American Superconductor (AMSC) Institutional Ownership

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$50.68 +2.09 (+4.30%)
Closing price 08/22/2025 04:00 PM Eastern
Extended Trading
$50.50 -0.18 (-0.36%)
As of 08/22/2025 07:52 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)
160
Total
Institutional Inflows
(last 12 months)
$276.90M
Number of
Institutional Sellers
(last 12 months)
64
Total
Institutional Outflows
(last 12 months)
$145.05M
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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

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/19/2025 Advisory Services Network LLC16,779$616K0.0%+19.7%0.037%
8/18/2025 Castleark Management LLC109,170$4.01M0.1%N/A0.242%
8/15/2025 Tower Research Capital LLC TRC 5,762$211K0.0%+304.4%0.013%
8/15/2025 Two Sigma Securities LLC7,642$280K0.0%-27.2%0.017%
8/15/2025 Shay Capital LLC19,500$715K0.1%N/A0.043%
8/15/2025 Orion Porfolio Solutions LLC6,112$224K0.0%N/A0.014%
8/15/2025 Man Group plc18,903$694K0.0%+52.2%0.042%
8/15/2025 Lazard Asset Management LLC6,093$223K0.0%N/A0.013%
8/15/2025 Great Valley Advisor Group Inc.7,235$265K0.0%N/A0.016%
8/15/2025 Garden State Investment Advisory Services LLC5,897$216K0.1%N/A0.013%
8/15/2025 BNP Paribas Financial Markets7,801$286K0.0%+33.8%0.017%
8/15/2025 Balyasny Asset Management L.P.75,303$2.76M0.0%+239.1%0.167%
8/15/2025 Bank of America Corp DE169,141$6.21M0.0%+204.6%0.375%
8/15/2025 AQR Capital Management LLC168,890$6.20M0.0%-20.0%0.374%
8/14/2025 Atreides Management LP1,104,458$40.52M1.1%+34.0%2.446%
8/14/2025 California State Teachers Retirement System50,769$1.86M0.0%+42.8%0.112%
8/14/2025 Raymond James Financial Inc.166,914$6.12M0.0%+5.7%0.370%
8/14/2025 Canada Pension Plan Investment Board2,000$73K0.0%+100.0%0.004%
8/14/2025 Bayesian Capital Management LP13,000$477K0.1%N/A0.029%
8/14/2025 Occudo Quantitative Strategies LP10,949$402K0.0%N/A0.024%
8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.24,700$906K0.0%-2.4%0.055%
8/14/2025 The Manufacturers Life Insurance Company 13,705$503K0.0%+10.1%0.030%
8/14/2025 Squarepoint Ops LLC147,224$5.40M0.0%+223.7%0.326%
8/14/2025 Sei Investments Co.42,073$1.54M0.0%-20.7%0.093%
8/14/2025 Qube Research & Technologies Ltd130,120$4.77M0.0%-68.2%0.288%
8/14/2025 Hood River Capital Management LLC1,168,906$42.89M0.6%-5.7%2.588%
8/13/2025 Jump Financial LLC128,635$4.72M0.1%N/A0.285%
8/13/2025 Bosun Asset Management LLC47,221$1.73M0.5%+11.1%0.105%
8/13/2025 Nkcfo LLC21,000$770K0.3%N/A0.047%
8/13/2025 Amundi43,895$1.72M0.0%-11.8%0.097%
8/13/2025 Baird Financial Group Inc.83,082$3.05M0.0%-3.1%0.184%
8/13/2025 First Trust Advisors LP337,574$12.39M0.0%+2.1%0.748%
8/13/2025 Kennedy Capital Management LLC146,209$5.36M0.1%+661.3%0.324%
8/13/2025 Invesco Ltd.159,292$5.84M0.0%-34.6%0.353%
8/13/2025 Arrowstreet Capital Limited Partnership236,396$8.67M0.0%N/A0.523%
8/13/2025 Quantbot Technologies LP7,502$275K0.0%N/A0.017%
8/13/2025 Panagora Asset Management Inc.171,988$6.31M0.0%+18.4%0.381%
8/13/2025 Lumbard & Kellner LLC72,439$2.66M1.2%N/A0.160%
8/13/2025 Virtus Advisers LLC1,887$69K0.1%N/A0.004%
8/13/2025 New York State Common Retirement Fund69,336$2.54M0.0%+4.2%0.154%
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8/13/2025 Quadrature Capital Ltd8,533$313K0.0%N/A0.019%
8/13/2025 Hsbc Holdings PLC23,010$845K0.0%-9.5%0.051%
8/13/2025 Russell Investments Group Ltd.7,736$284K0.0%+4,765.4%0.017%
8/12/2025 XTX Topco Ltd42,213$1.55M0.1%+159.5%0.093%
8/12/2025 Steward Partners Investment Advisory LLC2,625$96K0.0%N/A0.006%
8/12/2025 Ameritas Investment Partners Inc.3,900$143K0.0%+16.6%0.009%
8/12/2025 Prudential Financial Inc.35,170$1.29M0.0%N/A0.078%
8/12/2025 Rhumbline Advisers61,162$2.24M0.0%+24.4%0.135%
8/12/2025 Franklin Resources Inc.50,515$1.85M0.0%+14.5%0.112%
8/12/2025 Legal & General Group Plc417,039$15.30M0.0%+14.4%0.923%
8/12/2025 Hillsdale Investment Management Inc.220,000$8.07M0.3%+15.5%0.487%
8/12/2025 JPMorgan Chase & Co.55,637$2.04M0.0%-4.8%0.123%
8/12/2025 Telemark Asset Management LLC690,000$25.32M2.3%+15.0%1.528%
8/12/2025 Entropy Technologies LP8,897$326K0.0%N/A0.020%
8/12/2025 Swiss National Bank83,300$3.06M0.0%+14.7%0.184%
8/11/2025 Dorsey & Whitney Trust CO LLC21,611$793K0.0%-52.3%0.048%
8/11/2025 Universal Beteiligungs und Servicegesellschaft mbH9,913$364K0.0%N/A0.022%
8/11/2025 Integrated Quantitative Investments LLC11,784$432K0.1%-34.9%0.026%
8/8/2025 Kingsview Wealth Management LLC5,670$208K0.0%N/A0.013%
8/8/2025 Cetera Investment Advisers6,046$222K0.0%N/A0.013%
8/8/2025 Intech Investment Management LLC26,358$967K0.0%+39.8%0.058%
8/8/2025 Creative Planning5,681$208K0.0%N/A0.013%
8/8/2025 SG Americas Securities LLC7,592$279K0.0%-52.1%0.017%
8/8/2025 Police & Firemen s Retirement System of New Jersey8,777$322K0.0%+10.4%0.019%
8/8/2025 Geode Capital Management LLC940,111$34.50M0.0%+6.6%2.082%
8/8/2025 PNC Financial Services Group Inc.4,000$147K0.0%+16,566.7%0.009%
8/8/2025 SBI Securities Co. Ltd.3,867$142K0.0%+65.3%0.009%
8/7/2025 ProShare Advisors LLC9,575$351K0.0%N/A0.021%
8/7/2025 Lisanti Capital Growth LLC180,750$6.63M1.8%N/A0.400%
8/7/2025 Mitsubishi UFJ Asset Management Co. Ltd.13,139$482K0.0%+41.4%0.029%
8/6/2025 Fox Run Management L.L.C.37,505$1.38M0.2%+30.6%0.083%
8/6/2025 Penserra Capital Management LLC68,312$2.51M0.0%N/A0.151%
8/6/2025 Cornerstone Investment Partners LLC6,667$245K0.0%N/A0.015%
8/6/2025 Savant Capital LLC5,943$218K0.0%-57.6%0.013%
8/6/2025 ROI Financial Advisors LLC7,121$261K0.2%N/A0.016%
8/5/2025 GPS Wealth Strategies Group LLC10,302$378K0.0%+9.0%0.023%
8/5/2025 C2P Capital Advisory Group LLC d.b.a. Prosperity Capital Advisors6,879$252K0.0%N/A0.015%
8/4/2025 Emerald Mutual Fund Advisers Trust213,914$7.85M0.5%+1,598.1%0.474%
8/4/2025 Emerald Advisers LLC500,054$18.35M0.7%+1,191.5%1.107%
8/4/2025 Mayflower Financial Advisors LLC5,730$210K0.0%N/A0.013%
8/1/2025 Teacher Retirement System of Texas5,985$220K0.0%N/A0.015%
8/1/2025 GoalVest Advisory LLC18,400$675K0.2%-2.6%0.047%
7/31/2025 Kornitzer Capital Management Inc. KS36,660$1.35M0.0%N/A0.093%
7/30/2025 Cookson Peirce & Co. Inc.20,000$734K0.0%N/A0.051%
7/30/2025 FNY Investment Advisers LLC20,000$733K0.3%N/A0.051%
7/29/2025 Stephens Inc. AR8,000$294K0.0%N/A0.020%
7/25/2025 Allspring Global Investments Holdings LLC273,396$9.84M0.0%-19.8%0.692%
7/25/2025 Prostatis Group LLC7,273$267K0.1%N/A0.018%
7/25/2025 CWM LLC7,149$262K0.0%-9.7%0.018%
7/23/2025 KLP Kapitalforvaltning AS9,400$345K0.0%+36.2%0.024%
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7/18/2025 Truist Financial Corp22,270$817K0.0%+117.6%0.056%
7/17/2025 Campbell Newman Asset Management Inc.65,011$2.39M0.2%+7.2%0.165%
7/17/2025 Janney Montgomery Scott LLC45,761$1.68M0.0%N/A0.116%
7/17/2025 Palisades Investment Partners LLC140,498$5.16M2.3%-2.8%0.356%
7/14/2025 Counterpoint Mutual Funds LLC11,873$436K0.0%N/A0.030%
7/14/2025 GAMMA Investing LLC954$35K0.0%+104.7%0.002%
7/14/2025 Sowell Financial Services LLC15,451$567K0.0%-6.1%0.039%
7/11/2025 Diversified Trust Co8,624$316K0.0%N/A0.022%
7/11/2025 Assenagon 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%
(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, 199 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 183 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 10,599,610 shares in the last 24 months. This purchase volume represents approximately $276.90M 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 5,875,927 shares in the last 24 months. This volume of shares sold represents approximately $145.05M in transactions.



This page (NASDAQ:AMSC) was last updated on 8/23/2025 by MarketBeat.com Staff
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