Skip to main content
Livermore
Livermore
ZHEN

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, Q1 2023

Institutional positions in American Superconductor Corp as of Mar 31, 2023. 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
74
−2 vs. Q4 2022
Shares held
13.1M
−7.76K (−0.1%) vs. Q4 2022
Total value
$64.6M
+$16.2M (+33.5%) vs. Q4 2022
New holders
12
22 more added
Sold out
14
20 more reduced

1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 holdersQ1 2023: 74 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 heldQ1 2023: $64.6M
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, Q1 2023

Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q4 2022.

Institutions holding AMSC in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Advisory Services Network, LLC10$490.00%00.0%Unchanged
JFS Wealth Advisors, LLC10$500.00%00.0%Unchanged
IFP Advisors, Inc10$670.00%+10New
Whittier Trust Co of Nevada Inc40$1960.00%00.0%Unchanged
US Bancorp128$6280.00%00.0%Unchanged
UBS Group AG193$9480.00%−10,793−98.2%Reduced
Federated Hermes, Inc.241$1.18K0.00%−150−38.4%Reduced
Federation des caisses Desjardins du Quebec300$1.47K0.00%00.0%Unchanged
First Manhattan Co350$1.72K0.00%−150−30.0%Reduced
Nisa Investment Advisors, LLC540$3.00K0.00%00.0%Unchanged
Slow Capital, Inc.931$4.57K0.00%+931New
Johnson Financial Group, Inc.992$4.87K0.00%00.0%Unchanged
Tilia Fiduciary Partners, Inc.1,100$5.40K0.01%00.0%Unchanged
Wells Fargo & Company1,434$7.04K0.00%+5+0.3%Added
Point72 Middle East FZE1,503$7.38K0.00%+1,503New
M&R Capital Management Inc2,000$9.82K0.00%00.0%Unchanged
FMR LLC3,195$15.7K0.00%+2,972+1,332.7%Added
Global Retirement Partners, LLC4,360$17.1K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.3,525$17.3K0.00%−40−1.1%Reduced
Quadrature Capital Ltd10,315$50.9K0.00%+10,315New
Cambridge Investment Research Advisors, Inc.12,387$61.0K0.00%+12,387New
Vontobel Holding Ltd.14,000$68.7K0.00%00.0%Unchanged
Cubist Systematic Strategies, LLC14,404$70.7K0.00%+3,406+31.0%Added
Greenwich Wealth Management LLC14,366$71.0K0.01%00.0%Unchanged
Raymond James Financial Services Advisors, Inc.14,509$71.2K0.00%−887−5.8%Reduced
Simplex Trading, LLC14,846$72.0K0.00%+3,211+27.6%Added
Man Group plc–$72.7K0.00%––
Atria Wealth Solutions, Inc.15,085$74.1K0.00%−650−4.1%Reduced
Charles Schwab Investment Management Inc15,966$78.4K0.00%+15,966New
TFC Financial Management16,471$80.9K0.02%00.0%Unchanged
Bank of America Corp16,762$82.3K0.00%−44,383−72.6%Reduced
Squarepoint Ops LLC16,818$82.6K0.00%+16,818New
Jump Financial, LLC17,815$87.5K0.00%−1,085−5.7%Reduced
HRT Financial LP18,324$89.0K0.00%+18,324New
Tower Research Capital LLC (TRC)18,812$92.0K0.00%+10,841+136.0%Added
Prescott Group Capital Management, L.L.C.20,200$99.0K0.02%+20,200New
State of Wisconsin Investment Board20,500$100.7K0.00%−29,500−59.0%Reduced
Barclays PLC20,693$101.6K0.00%+20,689+517,225.0%Added
Joule Financial, LLC21,185$104.0K0.06%−47−0.2%Reduced
Healthcare of Ontario Pension Plan Trust Fund22,610$111.0K0.00%−1,085−4.6%Reduced
Goldman Sachs Group Inc24,816$121.8K0.00%+24,816New
Bank of New York Mellon Corp28,890$141.8K0.00%00.0%Unchanged
Connor, Clark & Lunn Investment Management Ltd.31,481$154.6K0.00%−19,149−37.8%Reduced
Journey Strategic Wealth LLC37,375$183.5K0.02%+2,375+6.8%Added
Price T Rowe Associates Inc40,100$197.0K0.00%00.0%Unchanged
Royal Bank of Canada40,384$198.0K0.00%−2,810−6.5%Reduced
Millennium Management LLC40,459$199.0K0.00%−73,433−64.5%Reduced
Citadel Advisors LLC47,176$231.6K0.00%+4,083+9.5%Added
Northern Trust Corp52,743$259.0K0.00%+2,430+4.8%Added
Jane Street Group, LLC54,074$265.5K0.00%+19,032+54.3%Added
Morgan Stanley54,914$269.6K0.00%−3,403−5.8%Reduced
Group One Trading, L.P.55,423$272.1K0.01%+7,167+14.9%Added
Renaissance Technologies LLC56,600$278.0K0.00%−45,589−44.6%Reduced
Quinn Opportunity Partners LLC62,661$307.7K0.03%+62,661New
Merit Financial Group, LLC74,954$368.0K0.01%00.0%Unchanged
JPMorgan Chase & Co89,938$442.0K0.00%−162,049−64.3%Reduced
Bridgeway Capital Management, LLC91,200$447.8K0.01%00.0%Unchanged
GMT Capital Corp108,066$530.6K0.02%+108,066New
State Street Corp108,796$534.2K0.00%+16,100+17.4%Added
Susquehanna International Group, LLP141,979$697.1K0.00%+76,992+118.5%Added
Gsa Capital Partners LLP196,323$964.0K0.10%+65,945+50.6%Added
First Trust Advisors LP261,526$1.28M0.00%+6,189+2.4%Added
Geode Capital Management, LLC288,751$1.42M0.00%+10,524+3.8%Added
D. E. Shaw & Co., Inc.338,070$1.66M0.00%−126,409−27.2%Reduced
CM Management, LLC350,000$1.72M2.04%+20,000+6.1%Added
BlackRock Inc.478,804$2.35M0.00%−41,435−8.0%Reduced
Dimensional Fund Advisors LP505,391$2.48M0.00%+44,139+9.6%Added
ArrowMark Colorado Holdings LLC569,432$2.80M0.03%+5,432+1.0%Added
KBC Group NV632,089$3.10M0.01%+150,720+31.3%Added
Invesco Ltd.835,037$4.10M0.00%−179,806−17.7%Reduced
Vanguard Group Inc1,243,546$6.11M0.00%+149,382+13.7%Added
Baillie Gifford & Co1,491,370$7.32M0.01%00.0%Unchanged
Royce & Associates LP1,811,771$8.90M0.09%+147,800+8.9%Added
AWM Investment Company, Inc.2,536,283$12.5M1.69%00.0%Unchanged
Marshall Wace, LLP0$00.00%−69,669−100.0%Sold out
Deutsche Bank AG0$00.00%−67,870−100.0%Sold out
Acadian Asset Management LLC0$00.00%−32,265−100.0%Sold out
Two Sigma Advisers, LP0$00.00%−29,800−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−24,004−100.0%Sold out
PDT Partners, LLC0$00.00%−21,177−100.0%Sold out
Engineers Gate Manager LP0$00.00%−16,241−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−7,241−100.0%Sold out
Citigroup Inc0$00.00%−5,890−100.0%Sold out
Rockefeller Capital Management L.P.0$00.00%−1,200−100.0%Sold out
BNP Paribas Arbitrage, SA0$00.00%−57−100.0%Sold out
Bartlett & Co. Wealth Management LLC0$00.00%−36−100.0%Sold out
Massmutual Trust Co FSB0$00.00%−50−100.0%Sold out
Bartlett & Co. LLC0$00.00%−36−100.0%Sold out
CoreCap Advisors, LLC––––Not filed