JANE STREET GROUP, LLC

CIK

1595888

City

NEW YORK

State / Country

Stock

GOSS — Gossamer Bio, Inc.

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 GOSS

Compact Export CSV

Shares Held

Position Value (USD)

28 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$51,158	155,500	+356.0%	Call	Defined	2026-05-12
2026-03-31	$11,218	34,100	-78.1%	Put	Defined	2026-05-12
2025-12-31	$482,331	155,591	-58.0%	Shares	Defined	2026-02-12
2025-12-31	$1,147,310	370,100	+2319.0%	Call	Defined	2026-02-12
2025-12-31	$47,430	15,300	-95.7%	Put	Defined	2026-02-12
2025-09-30	$938,647	356,900	-49.2%	Call	Defined	2025-11-14
2025-09-30	$1,846,430	702,065	+3341.5%	Shares	Defined	2025-11-14
2025-09-30	$53,652	20,400	-60.4%	Put	Defined	2025-11-14
2025-06-30	$63,345	51,500	-92.5%	Call	Defined	2025-08-14
2025-03-31	$751,764	683,423	+5250.1%	Shares	Defined	2025-05-19
2024-12-31	$11,560	12,774	-86.3%	Shares	Defined	2025-02-14
2024-06-30	$84,111	93,354	-71.0%	Shares	Defined	2024-08-15
2024-03-31	$380,348	322,330	+45.3%	Shares	Defined	2024-05-16
2023-12-31	$202,505	221,803	+1496.7%	Shares	Defined	2024-02-15
2023-09-30	$11,570	13,891	-95.8%	Shares	Defined	2023-11-15
2023-06-30	$398,080	331,734	-74.3%	Shares	Defined	2023-08-14
2023-03-31	$1,626,841	1,291,144	+1266.7%	Shares	Defined	2023-05-16
2022-12-31	$205,003	94,472	-34.8%	Shares	Defined	2023-02-15
2022-09-30	$1,735,793	144,891	+51.4%	Shares	Defined	2022-11-15
2022-06-30	$800,983	95,697	+202.0%	Shares	Defined	2022-08-16
2022-03-31	$275,077	31,691	+13.3%	Shares	Defined	2022-05-17
2021-12-31	$316,284	27,965	-41.7%	Shares	Defined	2022-02-15
2021-09-30	$603,371	48,001	+137.4%	Shares	Defined	2021-11-16
2021-06-30	$164,161	20,217	-37.8%	Shares	Defined	2021-08-16
2020-12-31	$314,129	32,485	+83.5%	Shares	Defined	2021-02-17
2020-09-30	$219,657	17,700	-54.0%	Put	Defined	2020-11-17
2020-09-30	$477,659	38,490	-16.7%	Shares	Defined	2020-11-17
2020-06-30	$600,600	46,200	—	Call	Defined	2020-08-17
No 13F history on record for this holder in this stock.