Qube Research & Technologies Ltd

Position in BRK-B — Berkshire Hathaway Inc

CIK 1729829 LONDON, X0

Back to BRK-B Full portfolio

Position in BRK-B

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$130,121,488

-$251,901,057 QoQ

Shares Held

271,539

-64.3% QoQ

Ownership

0.019%

of shares outstanding

% of Portfolio

0.19%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

24 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in BRK-B Over Time

Shares Held

Position Value (USD)

Derivatives in BRK-B

reported options exposure · as of Mar 31, 2026

CallValue

$41,977,920

CallShares

87,600

PutValue

$86,016,400

PutShares

179,500

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Insurance - Diversified

Financial Services · as of Mar 31, 2026

Qube Research & Technologies Ltd holds $517,217,646 across 6 Insurance - Diversified names. BRK-B ranks #2 (25.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AIG	American International Group, Inc.	3,324,159	$250,142,964
2	BRK-B	Berkshire Hathaway Inc This page	271,539	$130,121,488
3	HIG	Hartford Insurance Group, Inc.	592,788	$80,162,721
4	ACGL	Arch Capital Group Ltd.	561,945	$53,941,100
5	AEG	Aegon Ltd.	228,743	$1,660,674
6	PLGO	Pelagos Insurance Capital Ltd	62,203	$1,188,699

All Filings in BRK-B

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48 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$41,977,920	87,600	-67.7%	Call	Sole	2026-05-15
2026-03-31	$130,121,488	271,539	+51.3%	Shares	Sole	2026-05-15
2026-03-31	$86,016,400	179,500	-16.8%	Put	Sole	2026-05-15
2025-12-31	$108,471,870	215,800	-71.6%	Call	Sole	2026-02-17
2025-12-31	$382,022,545	760,017	+195.7%	Shares	Sole	2026-02-17
2025-12-31	$129,181,050	257,000	+73.3%	Put	Sole	2026-02-17
2025-09-30	$74,556,342	148,300	-23.6%	Call	Sole	2025-11-14
2025-09-30	$97,531,560	194,000	-59.6%	Put	Sole	2025-11-14
2025-09-30	$241,204,597	479,780	+126.6%	Shares	Sole	2025-11-14
2025-06-30	$102,837,509	211,700	-70.4%	Put	Sole	2025-08-14
2025-06-30	$347,583,979	715,532	+209.4%	Shares	Sole	2025-08-14
2025-06-30	$112,358,601	231,300	-39.4%	Call	Sole	2025-08-14
2025-03-31	$203,285,786	381,700	+206.6%	Put	Sole	2025-05-15
2025-03-31	$66,306,210	124,500	-67.9%	Call	Sole	2025-05-15
2024-12-31	$175,807,367	387,856	+212.8%	Shares	Sole	2025-02-14
2024-12-31	$56,206,720	124,000	-33.2%	Call	Sole	2025-02-14
2024-12-31	$84,128,768	185,600	+303.5%	Put	Sole	2025-02-14
2024-09-30	$21,171,960	46,000	-74.8%	Call	Sole	2024-11-14
2024-09-30	$84,135,528	182,800	-73.4%	Put	Sole	2024-11-14
2024-09-30	$316,548,877	687,761	-28.7%	Shares	Sole	2024-11-14
2024-06-30	$392,158,047	964,007	+470.4%	Shares	Sole	2024-08-14
2024-06-30	$68,749,200	169,000	+1026.7%	Put	Sole	2024-08-14
2024-06-30	$6,102,000	15,000	-87.4%	Call	Sole	2024-08-14
2024-03-31	$50,041,880	119,000	-71.7%	Put	Sole	2024-05-14
2024-03-31	$177,057,842	421,045	-59.3%	Shares	Sole	2024-05-14
2023-12-31	$369,124,553	1,034,948	+429.9%	Shares	Sole	2024-02-13
2023-12-31	$69,655,698	195,300	+438.0%	Put	Sole	2024-02-13
2023-12-31	$12,946,758	36,300	-75.2%	Call	Sole	2024-02-13
2023-09-30	$51,353,980	146,600	-66.9%	Put	Sole	2023-11-13
2023-09-30	$154,951,351	442,339	+1291.0%	Shares	Sole	2023-11-13
2023-09-30	$11,139,540	31,800	-75.0%	Call	Sole	2023-11-13
2023-06-30	$43,327,119	127,059	+20.7%	Shares	Sole	2023-08-14
2023-06-30	$35,907,300	105,300	+130.9%	Put	Sole	2023-08-14
2023-03-31	$14,079,912	45,600	+1.3%	Put	Sole	2023-05-15
2022-12-31	$13,900,500	45,000	0.0%	Put	Sole	2023-02-14
2022-12-31	$13,900,500	45,000	-38.6%	Call	Sole	2023-02-14
2022-09-30	$19,562,686	73,263	+62.8%	Shares	Sole	2022-11-14
2022-09-30	$12,015,900	45,000	0.0%	Call	Sole	2022-11-14
2022-09-30	$12,015,900	45,000	-91.7%	Put	Sole	2022-11-14
2022-06-30	$147,735,763	541,117	+816.3%	Shares	Sole	2022-08-15
2021-12-31	$17,656,847	59,053	-38.3%	Shares	Sole	2022-02-10
2021-09-30	$26,112,442	95,671	+118.8%	Shares	Sole	2021-11-12
2021-06-30	$12,154,831	43,735	-51.0%	Shares	Sole	2021-08-13
2021-03-31	$22,793,799	89,223	-43.0%	Shares	Sole	2021-05-14
2020-12-31	$36,272,583	156,435	+156.2%	Shares	Sole	2021-02-16
2020-09-30	$13,004,458	61,071	-35.1%	Shares	Sole	2020-11-12
2020-06-30	$16,809,215	94,164	+252.3%	Shares	Sole	2020-08-14
2020-03-31	$4,886,863	26,729	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.