Robeco Institutional Asset Management B.V.

Position in BRK-B — Berkshire Hathaway Inc

CIK 1418773 ROTTERDAM, P7

Back to BRK-B Full portfolio

Position in BRK-B

as of Mar 31, 2026 · filed Apr 21, 2026 Compact

Position Value

$175,218,042

+$13,710,566 QoQ

Shares Held

365,647

+13.8% QoQ

Ownership

0.026%

of shares outstanding

% of Portfolio

0.26%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 57.754063345248284.ToString("F0")% Shared 0.ToString("F0")% None 42.245936654751716.ToString("F0")%

Common Shares in BRK-B Over Time

Shares Held

Position Value (USD)

Position in Insurance - Diversified

Financial Services · as of Mar 31, 2026

Robeco Institutional Asset Management B.V. holds $688,591,617 across 4 Insurance - Diversified names. BRK-B ranks #2 (25.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	HIG	Hartford Insurance Group, Inc.	1,866,217	$252,368,524
2	BRK-B	Berkshire Hathaway Inc This page	365,647	$175,218,042
3	ACGL	Arch Capital Group Ltd.	1,771,944	$170,088,904
4	AIG	American International Group, Inc.	1,208,188	$90,916,147

All Filings in BRK-B

Export CSV

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$175,218,042	365,647	+13.8%	Shares	Defined	2026-04-21
2025-12-31	$161,507,476	321,312	+5.1%	Shares	Defined	2026-01-23
2025-09-30	$153,742,919	305,810	-3.9%	Shares	Defined	2025-10-22
2025-06-30	$154,528,294	318,110	-13.5%	Shares	Defined	2025-07-18
2025-03-31	$195,749,779	367,550	+6.1%	Shares	Defined	2025-04-23
2024-12-31	$156,979,023	346,318	-11.2%	Shares	Defined	2025-01-23
2024-09-30	$179,575,501	390,161	+15.0%	Shares	Defined	2024-10-29
2024-06-30	$138,041,884	339,336	+2.0%	Shares	Defined	2024-07-23
2024-03-31	$139,892,285	332,665	+2.8%	Shares	Defined	2024-04-24
2023-12-31	$115,456,548	323,716	+2.6%	Shares	Defined	2024-02-14
2023-09-30	$110,539,266	315,556	+9.0%	Shares	Defined	2023-10-24
2023-06-30	$98,750,190	289,590	-20.3%	Shares	Defined	2023-07-24
2023-03-31	$112,195,284	363,362	-11.5%	Shares	Defined	2023-05-04
2022-12-31	$126,822,601	410,562	-54.2%	Shares	Defined	2023-02-07
2022-09-30	$239,534,296	897,065	-19.9%	Shares	Defined	2022-12-01
2022-06-30	$305,701,313	1,119,703	+5.8%	Shares	Defined	2022-12-01
2022-03-31	$373,431,010	1,058,148	+9.4%	Shares	Defined	2022-12-01
2021-12-31	$289,137,186	967,014	-12.2%	Shares	Defined	2022-12-01
2021-09-30	$300,735,663	1,101,838	+12.1%	Shares	Defined	2022-12-01
2021-06-30	$273,141,721	982,807	+38.8%	Shares	Defined	2022-12-01
2021-03-31	$180,899,839	708,106	+3.2%	Shares	Defined	2022-12-01
2020-12-31	$159,115,918	686,229	+7.1%	Shares	Defined	2022-12-01
2020-09-30	$136,414,900	640,626	-7.0%	Shares	Defined	2021-01-19
2020-06-30	$122,930,732	688,649	+82.2%	Shares	Defined	2021-01-19
2020-03-31	$69,099,684	377,945	—	Shares	Defined	2021-01-19
No filing history on record for this holder in this stock.