FACTORY MUTUAL INSURANCE CO

Insurance

Position in BRK-B — Berkshire Hathaway Inc

CIK 887818 WALTHAM, MA

Position in BRK-B

as of Mar 31, 2026 · filed May 5, 2026 Compact

Position Value

$113,570,400

-$2,592,015 QoQ

Shares Held

237,000

+2.6% QoQ

Ownership

0.017%

of shares outstanding

% of Portfolio

1.75%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

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

Financial Services · as of Mar 31, 2026

FACTORY MUTUAL INSURANCE CO holds $123,543,329 across 3 Insurance - Diversified names. BRK-B ranks #1 (91.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BRK-B	Berkshire Hathaway Inc This page	237,000	$113,570,400
2	AIG	American International Group, Inc.	126,800	$9,541,700
3	AEG	Aegon Ltd.	59,398	$431,229

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$113,570,400	237,000	+2.6%	Shares	Sole	2026-05-05
2025-12-31	$116,162,415	231,100	-9.2%	Shares	Sole	2026-01-23
2025-09-30	$127,947,330	254,500	0.0%	Shares	Sole	2025-11-10
2025-06-30	$123,628,465	254,500	0.0%	Shares	Sole	2025-08-07
2025-03-31	$135,541,610	254,500	0.0%	Shares	Sole	2025-04-17
2024-12-31	$115,359,760	254,500	0.0%	Shares	Sole	2025-01-24
2024-09-30	$117,136,170	254,500	-0.6%	Shares	Sole	2024-10-10
2024-06-30	$104,181,480	256,100	-0.6%	Shares	Sole	2024-07-23
2024-03-31	$108,325,952	257,600	-1.3%	Shares	Sole	2024-04-12
2023-12-31	$93,052,594	260,900	0.0%	Shares	Sole	2024-01-23
2023-09-30	$91,393,270	260,900	0.0%	Shares	Sole	2023-11-07
2023-06-30	$88,966,900	260,900	0.0%	Shares	Sole	2023-07-27
2023-03-31	$80,558,093	260,900	-1.9%	Shares	Sole	2023-05-08
2022-12-31	$82,167,400	266,000	-21.3%	Shares	Sole	2023-02-02
2022-09-30	$90,252,760	338,000	-0.9%	Shares	Sole	2022-11-04
2022-06-30	$93,099,820	341,000	-1.2%	Shares	Sole	2022-08-08
2022-03-31	$121,824,532	345,200	-6.9%	Shares	Sole	2022-05-13
2021-12-31	$110,839,300	370,700	-18.5%	Shares	Sole	2022-02-10
2021-09-30	$124,116,189	454,738	-2.7%	Shares	Sole	2021-11-12
2021-06-30	$129,882,576	467,338	-5.6%	Shares	Sole	2021-07-14
2021-03-31	$126,518,707	495,239	-3.0%	Shares	Sole	2021-05-10
2020-12-31	$118,346,448	510,400	-6.5%	Shares	Sole	2021-02-17
2020-09-30	$116,222,652	545,800	0.0%	Shares	Sole	2020-10-19
2020-06-30	$97,430,758	545,800	-2.1%	Shares	Sole	2020-07-13
2020-03-31	$101,927,725	557,500	—	Shares	Sole	2020-04-16
No filing history on record for this holder in this stock.