Assenagon Asset Management S.A.

Position in BRK-B — Berkshire Hathaway Inc

CIK 1546007 SENNINGERBERG, N4

Back to BRK-B Full portfolio

Position in BRK-B

as of Jun 30, 2026 · filed Aug 21, 2026 Compact

Position Value

$1,675,684,515

+$569,850,968 QoQ

Shares Held

3,348,757

+45.1% QoQ

Ownership

0.238%

of shares outstanding

% of Portfolio

2.18%

of 13F equity value

Holder Rank

#41

of 4,965 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in BRK-B Over Time

Shares Held

Position Value (USD)

Position in Insurance - Diversified

Financial Services · as of Jun 30, 2026

Assenagon Asset Management S.A. holds $1,715,781,394 across 5 Insurance - Diversified names. BRK-B ranks #1 (97.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BRK-B	Berkshire Hathaway Inc This page	3,348,757	$1,675,684,515
2	AIG	American International Group, Inc.	282,171	$21,030,204
3	HIG	Hartford Insurance Group, Inc.	92,049	$12,198,333
4	ACGL	Arch Capital Group Ltd.	50,073	$4,860,085
5	SLF	Sun Life Financial Inc	25,609	$2,008,257

All Filings in BRK-B

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43 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,675,684,515	3,348,757	+45.1%	Shares	Sole	2026-08-21
2026-03-31	$1,105,833,547	2,307,666	+29.6%	Shares	Sole	2026-04-20
2025-12-31	$894,834,620	1,780,234	-34.7%	Shares	Sole	2026-01-09
2025-09-30	$1,369,920,247	2,724,908	+178.1%	Shares	Sole	2025-10-07
2025-06-30	$476,051,199	979,993	-34.4%	Shares	Sole	2025-07-11
2025-03-31	$796,192,720	1,494,973	-63.7%	Shares	Sole	2025-04-15
2024-12-31	$1,867,513,600	4,120,000	+42.1%	Shares	Sole	2025-01-14
2024-09-30 BRK-A	$1,382,360	2	+100.0%	Shares	Sole	2024-10-23
2024-09-30	$1,334,659,646	2,899,795	+9.9%	Shares	Sole	2024-10-23
2024-06-30 BRK-A	$612,241	1	-85.7%	Shares	Sole	2024-07-18
2024-06-30	$1,073,257,592	2,638,293	-8.1%	Shares	Sole	2024-07-18
2024-03-31	$1,207,008,463	2,870,276	+8.7%	Shares	Sole	2024-04-24
2023-12-31 BRK-A	$3,798,375	7	0.0%	Shares	Sole	2024-01-17
2023-12-31	$941,416,196	2,639,534	-12.6%	Shares	Sole	2024-01-17
2023-09-30 BRK-A	$3,720,339	7	+600.0%	Shares	Sole	2023-11-06
2023-09-30	$1,057,687,412	3,019,376	+30.1%	Shares	Sole	2023-11-06
2023-06-30 BRK-A	$517,810	1	0.0%	Shares	Sole	2023-07-25
2023-06-30	$791,692,539	2,321,679	+11.9%	Shares	Sole	2023-07-25
2023-03-31	$640,537,189	2,074,480	-6.0%	Shares	Sole	2023-04-18
2022-12-31 BRK-A	$468,711	1	-50.0%	Shares	Sole	2023-01-12
2022-12-31	$681,368,531	2,205,790	+131.0%	Shares	Sole	2023-01-12
2022-09-30 BRK-A	$812,940	2	0.0%	Shares	Sole	2022-10-27
2022-09-30	$255,025,728	955,081	-53.8%	Shares	Sole	2022-10-27
2022-06-30 BRK-A	$817,900	2	+100.0%	Shares	Sole	2022-07-27
2022-06-30	$564,487,688	2,067,569	-2.1%	Shares	Sole	2022-07-27
2022-03-31 BRK-A	$528,921	1	-93.8%	Shares	Sole	2022-04-25
2022-03-31	$745,630,012	2,112,805	-17.4%	Shares	Sole	2022-04-25
2021-12-31 BRK-A	$7,210,592	16	-61.9%	Shares	Sole	2022-02-01
2021-12-31	$764,787,283	2,557,817	+35.1%	Shares	Sole	2022-02-01
2021-09-30 BRK-A	$17,277,918	42	0.0%	Shares	Sole	2021-10-19
2021-09-30	$516,613,189	1,892,772	+72.2%	Shares	Sole	2021-10-19
2021-06-30 BRK-A	$17,581,242	42	-4.5%	Shares	Sole	2021-07-15
2021-06-30	$305,539,133	1,099,378	-43.9%	Shares	Sole	2021-07-15
2021-03-31 BRK-A	$16,970,888	44	-66.9%	Shares	Sole	2021-04-26
2021-03-31	$500,717,878	1,959,987	+56.6%	Shares	Sole	2021-04-26
2020-12-31 BRK-A	$46,259,395	133	+2116.7%	Shares	Sole	2021-02-01
2020-12-31	$290,195,043	1,251,542	+19.3%	Shares	Sole	2021-02-01
2020-09-30 BRK-A	$1,920,006	6	-91.8%	Shares	Sole	2020-10-07
2020-09-30	$223,372,995	1,048,995	+24.6%	Shares	Sole	2020-10-07
2020-06-30 BRK-A	$19,512,900	73	+630.0%	Shares	Sole	2020-07-21
2020-06-30	$150,243,477	841,653	+585.9%	Shares	Sole	2020-07-21
2020-03-31 BRK-A	$2,720,000	10	—	Shares	Sole	2020-04-17
2020-03-31	$22,436,166	122,716	—	Shares	Sole	2020-04-17
No filing history on record for this holder in this stock.