MARTINGALE ASSET MANAGEMENT L P

Position in BRK-B — Berkshire Hathaway Inc

CIK 936944 BOSTON, MA

Position in BRK-B

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$42,705,284

+$2,467,819 QoQ

Shares Held

85,344

+1.6% QoQ

Ownership

0.006%

of shares outstanding

% of Portfolio

1.02%

of 13F equity value

Holder Rank

#599

of 4,950 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 69% Shared 0% None 31%

Financial Services · as of Jun 30, 2026

MARTINGALE ASSET MANAGEMENT L P holds $75,565,439 across 3 Insurance - Diversified names. BRK-B ranks #1 (56.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BRK-B	Berkshire Hathaway Inc This page	85,344	$42,705,284
2	HIG	Hartford Insurance Group, Inc.	181,261	$24,020,707
3	ACGL	Arch Capital Group Ltd.	91,072	$8,839,448

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$42,705,284	85,344	+1.6%	Shares	Sole	2026-08-13
2026-03-31	$40,237,465	83,968	+1.7%	Shares	Sole	2026-05-13
2025-12-31	$41,521,403	82,605	-2.6%	Shares	Sole	2026-02-13
2025-09-30	$42,647,434	84,830	-14.6%	Shares	Sole	2025-11-13
2025-06-30	$48,236,961	99,300	-2.6%	Shares	Sole	2025-08-11
2025-03-31	$54,281,086	101,921	-9.7%	Shares	Sole	2025-05-14
2024-12-31	$51,145,848	112,835	-4.9%	Shares	Sole	2025-02-13
2024-09-30	$54,606,166	118,642	-14.1%	Shares	Sole	2024-11-14
2024-06-30	$56,190,876	138,129	-7.2%	Shares	Sole	2024-08-12
2024-03-31	$62,567,908	148,787	-5.3%	Shares	Sole	2024-05-14
2023-12-31	$56,020,585	157,070	-0.8%	Shares	Sole	2024-02-12
2023-09-30	$55,473,857	158,361	+3.8%	Shares	Sole	2023-11-14
2023-06-30	$52,039,328	152,608	+29.4%	Shares	Sole	2023-08-11
2023-03-31	$36,416,950	117,942	-8.3%	Shares	Sole	2023-05-12
2022-12-31	$39,748,015	128,676	-24.4%	Shares	Sole	2023-02-13
2022-09-30	$45,423,305	170,112	+9.6%	Shares	Sole	2022-11-14
2022-06-30	$42,363,420	155,166	-5.6%	Shares	Sole	2022-08-11
2022-03-31	$57,993,699	164,330	+4.2%	Shares	Sole	2022-05-12
2021-12-31	$47,158,280	157,720	+29.0%	Shares	Sole	2022-02-11
2021-09-30	$33,369,643	122,260	+7.7%	Shares	Sole	2021-11-12
2021-06-30	$31,553,924	113,536	-12.2%	Shares	Sole	2021-08-13
2021-03-31	$33,017,197	129,241	+14.6%	Shares	Sole	2021-05-13
2020-12-31	$26,154,239	112,797	+587.4%	Shares	Sole	2021-02-10
2020-09-30	$3,494,131	16,409	+0.6%	Shares	Sole	2020-11-12
2020-06-30	$2,911,318	16,309	-10.5%	Shares	Sole	2020-08-10
2020-03-31	$3,332,624	18,228	—	Shares	Sole	2020-05-11
No filing history on record for this holder in this stock.