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American Superconductor Corp

AMSC
Exchange
Nasdaq
Industry
Motors & Generators
SEC CIK
0000880807

No open-market purchases or sales by American Superconductor Corp insiders were filed in the last 90 days; 277 institutions reported holding it in 13F filings for Q2 2026, worth $1.47B in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in American Superconductor Corp as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
240
−29 vs. Q3 2025
Shares held
33.1M
+460.5K (+1.4%) vs. Q3 2025
Total value
$953.2M
−$982.6M (−50.8%) vs. Q3 2025
New holders
41
106 more added
Sold out
70
64 more reduced

4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AMSC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 240 institutions
Q1 2021: 104 institutionsQ2 2021: 105 institutionsQ3 2021: 101 institutionsQ4 2021: 107 institutionsQ1 2022: 107 institutionsQ2 2022: 93 institutionsQ3 2022: 82 institutionsQ4 2022: 77 institutionsQ1 2023: 74 institutionsQ2 2023: 77 institutionsQ3 2023: 72 institutionsQ4 2023: 99 institutionsQ1 2024: 128 institutionsQ2 2024: 155 institutionsQ3 2024: 171 institutionsQ4 2024: 191 institutionsQ1 2025: 189 institutionsQ2 2025: 232 institutionsQ3 2025: 273 institutionsQ4 2025: 240 institutionsQ1 2026: 245 institutionsQ2 2026: 277 institutions
Value heldQ4 2025: $953.2M
Q1 2021: $311.2MQ2 2021: $284.8MQ3 2021: $243.3MQ4 2021: $178.2MQ1 2022: $119.5MQ2 2022: $68.6MQ3 2022: $61.0MQ4 2022: $48.4MQ1 2023: $64.6MQ2 2023: $81.9MQ3 2023: $100.0MQ4 2023: $178.8MQ1 2024: $312.0MQ2 2024: $636.1MQ3 2024: $642.6MQ4 2024: $678.1MQ1 2025: $499.8MQ2 2025: $1.20BQ3 2025: $1.94BQ4 2025: $953.2MQ1 2026: $1.12BQ2 2026: $1.47B
Institutions holding AMSC and their total value by quarter
QuarterHoldersValue
Q2 2026277$1.47B
Q1 2026245$1.12B
Q4 2025240$953.2M
Q3 2025273$1.94B
Q2 2025232$1.20B
Q1 2025189$499.8M
Q4 2024191$678.1M
Q3 2024171$642.6M
Q2 2024155$636.1M
Q1 2024128$312.0M
Q4 202399$178.8M
Q3 202372$100.0M
Q2 202377$81.9M
Q1 202374$64.6M
Q4 202277$48.4M
Q3 202282$61.0M
Q2 202293$68.6M
Q1 2022107$119.5M
Q4 2021107$178.2M
Q3 2021101$243.3M
Q2 2021105$284.8M
Q1 2021104$311.2M

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q3 2025.

Institutions holding AMSC in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Nisa Investment Advisors, LLC529$15.2K0.00%00.0%Unchanged
CoreCap Advisors, LLC484$13.9K0.00%+484New
SWAN Capital LLC400$11.5K0.00%00.0%Unchanged
Atlantic Trust, LLC393$11.3K0.00%00.0%Unchanged
Bullock Wealth Management Group307$8.84K0.00%00.0%Unchanged
Sterling Capital Management LLC290$8.35K0.00%+184+173.6%Added
SHP Wealth Management271$7.80K0.00%+271New
Sunbelt Securities, Inc.205$5.90K0.00%00.0%Unchanged
Vermillion Wealth Management, Inc.200$5.76K0.00%+200New
Signaturefd, LLC187$5.38K0.00%−726−79.5%Reduced
Northwestern Mutual Wealth Management Co170$4.89K0.00%+170New
Greenline Wealth Management LLC169$4.87K0.01%+169New
IFP Advisors, Inc163$4.69K0.00%+139+579.2%Added
Spire Wealth Management157$4.52K0.00%−60−27.6%Reduced
Parallel Advisors, LLC146$4.20K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC124$3.57K0.00%−73−37.1%Reduced
National Bank of Canada120$3.45K0.00%+110+1,100.0%Added
Trust Co of Vermont100$2.88K0.00%00.0%Unchanged
Archer Investment Corp100$2.88K0.00%00.0%Unchanged
TD Waterhouse Canada Inc.100$2.88K0.00%00.0%Unchanged
MAI Capital Management90$2.59K0.00%+90New
WPG Advisers, LLC87$2.50K0.00%−81−48.2%Reduced
Quarry LP71$2.04K0.00%+10+16.4%Added
CIBC Private Wealth Group, LLC69$1.99K0.00%+44+176.0%Added
Smartleaf Asset Management LLC53$1.53K0.00%+37+231.3%Added
Rothschild Investment LLC51$1.47K0.00%−14−21.5%Reduced
Private Trust Co NA50$1.44K0.00%−25−33.3%Reduced
Hager Investment Management Services, LLC50$1.44K0.00%00.0%Unchanged
Whittier Trust Co of Nevada Inc40$1.23K0.00%00.0%Unchanged
Federated Hermes, Inc.34$9790.00%00.0%Unchanged
Fortitude Family Office, LLC33$9500.00%00.0%Unchanged
Keating Financial Advisory Services, Inc.13$3740.00%+13New
JFS Wealth Advisors, LLC10$2880.00%00.0%Unchanged
True Wealth Design, LLC7$2020.00%00.0%Unchanged
SRS Capital Advisors, Inc.7$2010.00%−3,665−99.8%Reduced
SJS Investment Consulting Inc.5$1440.00%+5New
Central Trust Co4$1160.00%+4New
Massmutual Trust Co FSB3$860.00%00.0%Unchanged
Turning Point Benefit Group, Inc.2$570.00%00.0%Unchanged
Covestor Ltd4$00.00%00.0%Unchanged
Fuller & Thaler Asset Management, Inc.0$00.00%−809,945−100.0%Sold out
Macquarie Group Ltd0$00.00%−465,221−100.0%Sold out
Wellington Management Group LLP0$00.00%−399,246−100.0%Sold out
Castleark Management LLC0$00.00%−135,617−100.0%Sold out
Next Century Growth Investors LLC0$00.00%−128,220−100.0%Sold out
Lisanti Capital Growth, LLC0$00.00%−118,151−100.0%Sold out
Jump Financial, LLC0$00.00%−117,498−100.0%Sold out
GMT Capital Corp0$00.00%−108,066−100.0%Sold out
Prudential Financial Inc0$00.00%−107,190−100.0%Sold out
Ghisallo Capital Management LLC0$00.00%−100,000−100.0%Sold out
Meridian Wealth Management, LLC0$00.00%−91,102−100.0%Sold out
Andrew Hill Investment Advisors, Inc.0$00.00%−88,855−100.0%Sold out
EAM Investors, LLC0$00.00%−83,977−100.0%Sold out
Penserra Capital Management LLC0$00.00%−57,728−100.0%Sold out
Private Advisor Group, LLC0$00.00%−37,683−100.0%Sold out
HWG Holdings LP0$00.00%−35,468−100.0%Sold out
Quantbot Technologies LP0$00.00%−26,831−100.0%Sold out
IMC-Chicago, LLC0$00.00%−25,044−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−23,858−100.0%Sold out
Oppenheimer & Co Inc0$00.00%−20,100−100.0%Sold out
Comerica Bank0$00.00%−18,808−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−15,798−100.0%Sold out
Neo Ivy Capital Management0$00.00%−13,520−100.0%Sold out
Ieq Capital, LLC0$00.00%−12,889−100.0%Sold out
Omers Administration Corp0$00.00%−10,700−100.0%Sold out
Sigma Planning Corp0$00.00%−10,293−100.0%Sold out
Integrated Quantitative Investments LLC0$00.00%−9,333−100.0%Sold out
Stephens Inc0$00.00%−8,500−100.0%Sold out
Counterpoint Mutual Funds LLC0$00.00%−8,206−100.0%Sold out
Creative Planning0$00.00%−7,044−100.0%Sold out
Baader Bank INC0$00.00%−7,063−100.0%Sold out
Great Valley Advisor Group, Inc.0$00.00%−6,741−100.0%Sold out
Scientech Research LLC0$00.00%−6,585−100.0%Sold out
Benjamin Edwards Inc0$00.00%−6,219−100.0%Sold out
Brinker Capital Investments, LLC0$00.00%−6,132−100.0%Sold out
Cornerstone Investment Partners, LLC0$00.00%−6,102−100.0%Sold out
Prostatis Group LLC0$00.00%−6,011−100.0%Sold out
Toth Financial Advisory Corp0$00.00%−6,000−100.0%Sold out
Savant Capital, LLC0$00.00%−5,918−100.0%Sold out
Pictet Asset Management Holding SA0$00.00%−5,829−100.0%Sold out
Mayflower Financial Advisors, LLC0$00.00%−5,730−100.0%Sold out
Promethium Advisors,llc0$00.00%−5,500−100.0%Sold out
Cinctive Capital Management LP0$00.00%−5,256−100.0%Sold out
Wealth Enhancement Advisory Services, LLC0$00.00%−5,484−100.0%Sold out
Vontobel Holding Ltd.0$00.00%−5,021−100.0%Sold out
Cim, LLC0$00.00%−4,632−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−4,100−100.0%Sold out
Squarepoint Ops LLC0$00.00%−4,086−100.0%Sold out
Cerity Partners LLC0$00.00%−3,906−100.0%Sold out
Aigen Investment Management, LP0$00.00%−3,822−100.0%Sold out
Bank of Montreal0$00.00%−3,797−100.0%Sold out
Captrust Financial Advisors0$00.00%−3,755−100.0%Sold out
Anb Bank0$00.00%−3,721−100.0%Sold out
Hartline Investment Corp0$00.00%−3,400−100.0%Sold out
JustInvest LLC0$00.00%−3,385−100.0%Sold out
Xponance, Inc.0$00.00%−3,379−100.0%Sold out
Stance Capital LLC0$00.00%−2,606−100.0%Sold out
Mark Sheptoff Financial Planning, LLC0$00.00%−2,000−100.0%Sold out
Once Capital Management, LLC0$00.00%−1,600−100.0%Sold out
Banque Cantonale Vaudoise0$00.00%−1,585−100.0%Sold out