American Superconductor Corp

AMSC

Exchange: Nasdaq
Industry: Motors & Generators
SEC CIK: 0000880807

SEC filings (opens in a new tab)

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.

Q4 2024 vs. Q3 2024

How the institutions holding American Superconductor Corp changed between Q3 2024 and Q4 2024.

All holders in Q4 2024 All holders in Q3 2024

13F holders of AMSC: Q3 2024 compared with Q4 2024
Measure	Q3 2024	Of which not filed for Q4 2024	Q4 2024	Change
Holders	171	4	191	+24
Shares	27.2M	378.6K	27.5M	+671.1K (+2.5%)
Value	$642.6M	$8.98M	$678.1M	+$44.4M (+7.0%)

4 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (55)

Institutions that held American Superconductor Corp at the end of Q4 2024 but not at the end of Q3 2024.

Institutions new to AMSC in Q4 2024
Institution	Shares	Value	% of portfolio
Wellington Management Group LLP	461,230	$11.4M	0.00%
Raymond James Financial Inc	413,646	$10.2M	0.00%
Arrowstreet Capital, Limited Partnership	296,792	$7.31M	0.01%
Balyasny Asset Management LLC	238,992	$5.89M	0.01%
KBC Group NV	101,175	$2.49M	0.01%
KP Management LLC	95,000	$2.34M	0.82%
Baird Financial Group, Inc.	67,945	$1.67M	0.00%
Algert Global LLC	62,558	$1.54M	0.04%
Campbell Newman Asset Management Inc	60,205	$1.48M	0.12%
Amundi	52,911	$1.44M	0.00%
Susquehanna International Group, LLP	47,501	$1.17M	0.00%
Nkcfo LLC	47,000	$1.16M	0.51%
Caption Management, LLC	45,900	$1.13M	0.05%
Dorsey & Whitney Trust CO LLC	45,300	$1.12M	0.06%
Range Financial Group LLC	42,018	$1.03M	0.48%
HRT Financial LP	39,274	$967.0K	0.00%
Gsa Capital Partners LLP	34,661	$854.0K	0.06%
Emerald Advisers, LLC	28,119	$692.6K	0.03%
Ieq Capital, LLC	22,835	$562.4K	0.01%
IMC-Chicago, LLC	20,906	$514.9K	0.01%
Summit Global Investments	20,049	$494.0K	0.03%
Q Fund Management (Hong Kong) Ltd	20,000	$492.6K	0.52%
Wolverine Trading, LLC	17,874	$450.4K	0.01%
Stifel Financial Corp	16,073	$395.9K	0.00%
Intech Investment Management LLC	14,408	$354.9K	0.00%
American Century Companies Inc	13,008	$320.4K	0.00%
Itau Unibanco Holding S.A.	12,447	$313.7K	0.01%
Commonwealth Equity Services, LLC	11,855	$292.0K	0.00%
Quantum Private Wealth, LLC	11,423	$281.3K	0.09%
PFG Investments, LLC	11,350	$279.6K	0.02%
Private Advisor Group, LLC	10,737	$264.5K	0.00%
Kestra Advisory Services, LLC	10,721	$264.1K	0.00%
Truist Financial Corp	10,200	$251.2K	0.00%
CIBC World Markets Inc.	10,069	$248.0K	0.00%
Tradewinds, LLC.	7,131	$225.4K	0.06%
Emerald Mutual Fund Advisers Trust	8,277	$203.9K	0.01%
Mariner, LLC	8,207	$202.1K	0.00%
Police & Firemen's Retirement System of New Jersey	7,950	$195.8K	0.00%
KLP Kapitalforvaltning AS	6,900	$169.9K	0.00%
Stance Capital LLC	2,879	$70.9K	0.04%
SBI Securities Co., Ltd.	2,645	$65.1K	0.00%
Gen-Wealth Partners Inc	2,355	$58.0K	0.02%
FNY Investment Advisers, LLC	758	$18.0K	0.01%
Principal Securities, Inc.	525	$12.9K	0.00%
Park Square Financial Group, LLC	493	$12.1K	0.01%
Atlantic Trust, LLC	393	$9.68K	0.00%
Venturi Wealth Management, LLC	181	$4.46K	0.00%
EverSource Wealth Advisors, LLC	130	$3.20K	0.00%
US Bancorp	124	$3.05K	0.00%
Harbour Investments, Inc.	100	$2.46K	0.00%
Hoey Investments, Inc	100	$2.46K	0.00%
Ronald Blue Trust, Inc.	55	$1.35K	0.00%
Hager Investment Management Services, LLC	50	$1.23K	0.00%
Creative Planning	49	$1.21K	0.00%
Caitong International Asset Management Co., Ltd	30	$739	0.00%

Sold out (31)

Institutions that held American Superconductor Corp at the end of Q3 2024 and filed for Q4 2024 without it.

Institutions that sold out of AMSC in Q4 2024
Institution	Shares, Q3 2024	Value, Q3 2024
Renaissance Technologies LLC	158,389	$3.74M
Lisanti Capital Growth, LLC	131,340	$3.10M
Assenagon Asset Management S.A.	103,383	$2.44M
Dynamic Technology Lab Private Ltd	51,141	$1.21M
Healthcare of Ontario Pension Plan Trust Fund	44,075	$1.04M
Two Sigma Securities, LLC	24,299	$573.5K
Stephens Inc	24,178	$570.6K
Trexquant Investment LP	22,965	$542.0K
Gotham Asset Management, LLC	22,589	$533.1K
Petrus Trust Company, LTA	20,940	$494.2K
Sherbrooke Park Advisers LLC	20,867	$492.5K
GTS Securities LLC	20,557	$485.1K
Centiva Capital, LP	19,319	$455.9K
Aquatic Capital Management LLC	15,400	$363.4K
Penserra Capital Management LLC	14,022	$330.0K
Graham Capital Management, L.P.	13,298	$313.8K
Bailard, Inc.	12,938	$305.3K
Precision Wealth Strategies, LLC	12,733	$300.5K
Greenwich Wealth Management LLC	11,924	$281.0K
Caxton Associates LP	10,736	$253.4K
Acadian Asset Management LLC	10,688	$251.0K
Engineers Gate Manager LP	10,062	$237.5K
Envestnet Asset Management Inc	9,066	$214.0K
Cookson Peirce & Co Inc	9,000	$212.4K
Janney Montgomery Scott LLC	8,928	$211.0K
Dark Forest Capital Management LP	8,772	$207.0K
State of Wyoming	6,611	$156.0K
Walleye Capital LLC	3,642	$86.0K
Catalyst Funds Management Pty Ltd	400	$9.44K
Arrow Financial Corp	345	$8.14K
Capital Performance Advisors LLP	201	$4.74K

Not filed for Q4 2024 yet (4)

Institutions that held American Superconductor Corp at the end of Q3 2024 and haven't filed a 13F for Q4 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding AMSC in Q3 2024 that haven't filed for Q4 2024
Institution	Shares, Q3 2024	Value, Q3 2024
Scout Investments, Inc.	198,035	$4.75M
ClariVest Asset Management LLC	156,560	$3.66M
Raymond James & Associates	23,889	$563.8K
Naples Money Management LLC	100	$2.36K