JANE STREET GROUP, LLC

CIK

1595888

City

NEW YORK

State / Country

Stock

BRK-B — Berkshire Hathaway Inc

Top Portfolio Positions

3,962 positions · $676,020,615,977 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	19.23%
QQQ	Invesco Qqq Trust, Series 1	72,961,946	$42,112,175,991	6.23%
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	4.81%
GLD	Spdr Gold Trust	75,600,043	$32,529,942,501	4.81%
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	2.23%
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	2.08%
AAPL	Apple Inc. Technology	49,649,392	$12,600,519,193	1.86%

Portfolio Trend

25 quarters · across all stocks

Holdings in BRK-B

Compact Export CSV

Shares Held

Position Value (USD)

50 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,077,912,480	2,249,400	+3315.1%	Call	Defined	2026-05-12
2026-03-31	$31,563,465	65,867	-94.1%	Shares	Defined	2026-05-12
2026-03-31	$535,170,560	1,116,800	-48.4%	Put	Defined	2026-05-12
2025-12-31	$1,088,689,635	2,165,900	+59.8%	Call	Defined	2026-02-12
2025-12-31	$681,492,870	1,355,800	+1708.6%	Put	Defined	2026-02-12
2025-12-31	$37,681,156	74,965	-88.9%	Shares	Defined	2026-02-12
2025-09-30	$339,759,734	675,816	-54.0%	Shares	Defined	2025-11-14
2025-09-30	$738,474,786	1,468,900	+18.9%	Put	Defined	2025-11-14
2025-09-30	$620,984,448	1,235,200	-20.1%	Call	Defined	2025-11-14
2025-06-30	$750,708,958	1,545,400	+98.1%	Call	Defined	2025-08-14
2025-06-30	$378,900,600	780,000	+23493.5%	Put	Defined	2025-08-14
2025-06-30	$1,605,955	3,306	-99.5%	Shares	Defined	2025-08-14
2025-03-31	$353,366,830	663,500	-49.6%	Put	Defined	2025-05-19
2025-03-31	$700,768,764	1,315,800	+5281.8%	Call	Defined	2025-05-19
2025-03-31	$13,021,047	24,449	-98.4%	Shares	Defined	2025-05-19
2024-12-31	$685,586,000	1,512,500	+510.7%	Call	Defined	2025-02-14
2024-12-31	$112,257,963	247,657	-56.1%	Shares	Defined	2025-02-14
2024-12-31	$255,468,608	563,600	+1481.2%	Put	Defined	2025-02-14
2024-09-30	$16,405,506	35,644	-92.4%	Shares	Defined	2024-11-15
2024-09-30	$217,288,746	472,100	-72.6%	Put	Defined	2024-11-15
2024-09-30	$793,212,084	1,723,400	+83.0%	Call	Defined	2024-11-15
2024-06-30	$383,047,354	941,611	+625.5%	Shares	Defined	2024-08-15
2024-03-31	$54,578,028	129,787	-50.1%	Shares	Defined	2024-05-16
2023-12-31	$92,687,372	259,876	-35.2%	Shares	Defined	2024-02-15
2023-09-30	$140,397,436	400,792	+136.4%	Shares	Defined	2023-11-15
2023-06-30	$57,811,435	169,535	-50.6%	Shares	Defined	2023-08-14
2023-03-31	$105,878,158	342,903	+9.5%	Shares	Defined	2023-05-16
2022-12-31	$96,733,579	313,155	-41.6%	Shares	Defined	2023-02-15
2022-09-30	$143,261,035	536,518	+5.0%	Shares	Defined	2022-11-15
2022-06-30	$139,442,234	510,740	-68.0%	Shares	Defined	2022-08-16
2022-03-31	$563,879,598	1,597,800	+91.3%	Call	Defined	2022-05-17
2022-03-31	$294,785,723	835,300	+1990.3%	Put	Defined	2022-05-17
2022-03-31	$14,102,635	39,961	-69.2%	Shares	Defined	2022-05-17
2021-12-31	$38,783,888	129,712	-89.2%	Shares	Defined	2022-02-15
2021-12-31	$359,517,600	1,202,400	-46.8%	Put	Defined	2022-02-15
2021-12-31	$675,351,300	2,258,700	+1735.9%	Call	Defined	2022-02-15
2021-09-30	$33,579,534	123,029	-79.7%	Shares	Defined	2021-11-16
2021-09-30	$165,456,228	606,200	-66.7%	Put	Defined	2021-11-16
2021-09-30	$496,723,506	1,819,900	+20.9%	Call	Defined	2021-11-16
2021-06-30	$418,352,976	1,505,300	+1129.0%	Call	Defined	2021-08-16
2021-06-30	$34,038,806	122,477	-69.4%	Shares	Defined	2021-08-16
2021-06-30	$111,279,168	400,400	-1.2%	Put	Defined	2021-08-16
2021-03-31	$103,567,538	405,400	-76.7%	Put	Defined	2021-05-18
2021-03-31	$444,287,877	1,739,100	+979.0%	Call	Defined	2021-05-18
2021-03-31	$41,177,420	161,183	-90.1%	Shares	Defined	2021-05-18
2020-12-31	$379,339,320	1,636,000	-30.9%	Call	Defined	2021-02-17
2020-12-31	$548,604,420	2,366,000	+163.8%	Put	Defined	2021-02-17
2020-12-31	$207,958,173	896,874	+58.5%	Shares	Defined	2021-02-17
2020-09-30	$120,514,882	565,957	-64.5%	Shares	Defined	2020-11-17
2020-09-30	$339,149,538	1,592,700	—	Call	Defined	2020-11-17
No 13F history on record for this holder in this stock.