JANE STREET GROUP, LLC

CIK

1595888

City

NEW YORK

State / Country

Stock

AMSC — American Superconductor Corp /De/

Top Portfolio Positions

3,970 positions · $675,363,467,990 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
SPY	Spdr S&P 500 ETF Trust	199,908,899	$130,008,753,375	19.25%
QQQ	Invesco Qqq Trust, Series 1	72,961,946	$42,112,175,991	6.24%
TSLA	Tesla, Inc. Consumer Cyclical	96,307,904	$35,802,463,311	5.30%
NVDA	Nvidia Corp Technology	186,634,816	$32,549,111,909	4.82%
GLD	Spdr Gold Trust	75,600,043	$32,529,942,501	4.82%
META	Meta Platforms, Inc. Communication Services	35,584,342	$20,358,869,587	3.01%
MU	Micron Technology Inc Technology	44,692,337	$15,098,859,131	2.24%
MSFT	Microsoft Corp Technology	39,450,469	$14,603,380,108	2.16%
AMZN	Amazon Com Inc Consumer Cyclical	67,664,445	$14,092,473,959	2.09%
AAPL	Apple Inc. Technology	49,649,392	$12,600,519,193	1.87%

Portfolio Trend

25 quarters · across all stocks

Holdings in AMSC

Compact Export CSV

Shares Held

Position Value (USD)

37 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,665,420	49,200	-63.9%	Call	Defined	2026-05-12
2026-03-31	$4,617,140	136,400	+41.1%	Put	Defined	2026-05-12
2025-12-31	$2,783,026	96,700	-60.2%	Call	Defined	2026-02-12
2025-12-31	$6,986,833	242,767	+599.6%	Shares	Defined	2026-02-12
2025-12-31	$998,666	34,700	-74.5%	Put	Defined	2026-02-12
2025-09-30	$8,083,097	136,102	+71.0%	Shares	Defined	2025-11-14
2025-09-30	$4,727,444	79,600	-3.7%	Put	Defined	2025-11-14
2025-09-30	$4,911,553	82,700	-49.6%	Call	Defined	2025-11-14
2025-06-30	$6,021,011	164,105	+139.9%	Shares	Defined	2025-08-14
2025-06-30	$2,509,596	68,400	-80.7%	Call	Defined	2025-08-14
2025-06-30	$12,995,598	354,200	+191.4%	Put	Defined	2025-08-14
2025-03-31	$2,204,716	121,539	+149.1%	Shares	Defined	2025-05-19
2025-03-31	$885,232	48,800	+43.5%	Call	Defined	2025-05-19
2025-03-31	$616,760	34,000	-72.4%	Put	Defined	2025-05-19
2024-12-31	$3,031,953	123,100	+49.4%	Put	Defined	2025-02-14
2024-12-31	$2,029,512	82,400	+180.8%	Call	Defined	2025-02-14
2024-12-31	$722,692	29,342	+57.0%	Shares	Defined	2025-02-14
2024-09-30	$441,012	18,687	-80.5%	Shares	Defined	2024-11-15
2024-09-30	$2,265,600	96,000	+32.2%	Put	Defined	2024-11-15
2024-09-30	$1,713,360	72,600	+6.7%	Call	Defined	2024-11-15
2024-06-30	$1,592,157	68,070	-80.9%	Shares	Defined	2024-08-15
2024-03-31	$4,815,949	356,473	+67.0%	Shares	Defined	2024-05-16
2023-12-31	$2,378,377	213,499	+1258.2%	Shares	Defined	2024-02-15
2023-06-30	$98,400	15,719	-70.9%	Shares	Defined	2023-08-14
2023-03-31	$265,503	54,074	+54.3%	Shares	Defined	2023-05-16
2022-12-31	$128,954	35,042	-38.5%	Shares	Defined	2023-02-15
2022-06-30	$295,140	56,977	+126.1%	Shares	Defined	2022-08-16
2021-09-30	$367,416	25,200	-59.7%	Call	Defined	2021-11-16
2021-06-30	$1,088,614	62,600	+152.2%	Call	Defined	2021-08-16
2021-06-30	$431,706	24,825	-82.1%	Shares	Defined	2021-08-16
2021-06-30	$2,415,471	138,900	+97.0%	Put	Defined	2021-08-16
2021-03-31	$1,336,680	70,500	-15.5%	Call	Defined	2021-05-18
2021-03-31	$1,581,301	83,402	-43.2%	Shares	Defined	2021-05-18
2021-03-31	$2,783,328	146,800	+558.6%	Put	Defined	2021-05-18
2020-12-31	$522,031	22,290	-80.1%	Shares	Defined	2021-02-17
2020-12-31	$2,625,382	112,100	+169.5%	Put	Defined	2021-02-17
2020-12-31	$974,272	41,600	—	Call	Defined	2021-02-17
No 13F history on record for this holder in this stock.