RHUMBLINE ADVISERS

Position in WTM — White Mountains Insurance Group Ltd

CIK 1115418 BOSTON, MA

Position in WTM

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$9,077,838

+$422,844 QoQ

Shares Held

4,132

-0.8% QoQ

Ownership

0.173%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 68% Shared 0% None 32%

Financial Services · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $1,004,611,290 across 44 Insurance - Property & Casualty names. WTM ranks #16 (0.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CB	Chubb Ltd	665,389	$216,870,236
2	PGR	Progressive Corp/Oh/	997,937	$197,831,030
3	TRV	Travelers Companies, Inc.	430,605	$125,598,866
4	ALL	Allstate Corp	506,247	$104,965,252
5	CINF	Cincinnati Financial Corp	278,366	$43,800,890
6	L	Loews Corp	360,027	$38,429,281
7	WRB	Berkley W R Corp	575,722	$38,158,854
8	MKL	Markel Group Inc.	14,975	$28,663,196

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$9,077,838	4,132	-0.8%	Shares	Sole	2026-05-12
2025-12-31	$8,654,994	4,165	-1.6%	Shares	Sole	2026-02-13
2025-09-30	$7,073,872	4,232	-1.1%	Shares	Sole	2025-11-06
2025-06-30	$7,685,681	4,280	-4.3%	Shares	Sole	2025-08-12
2025-03-31	$8,612,222	4,472	-1.7%	Shares	Sole	2025-05-29
2024-12-31	$8,848,078	4,549	+0.4%	Shares	Sole	2025-05-29
2024-09-30	$7,688,874	4,533	-0.3%	Shares	Sole	2024-11-12
2024-06-30	$8,263,945	4,547	-5.7%	Shares	Sole	2024-08-01
2024-03-31	$8,653,908	4,823	-6.7%	Shares	Sole	2024-05-09
2023-12-31	$7,783,911	5,172	+12.4%	Shares	Sole	2024-02-08
2023-09-30	$6,883,164	4,602	-1.1%	Shares	Sole	2023-11-09
2023-06-30	$6,462,598	4,653	+5.9%	Shares	Sole	2023-08-08
2023-03-31	$6,050	4,392	-2.2%	Shares	Sole	2023-05-11
2022-12-31	$6,349	4,489	-2.2%	Shares	Sole	2023-02-14
2022-09-30	$5,982,164	4,591	+1.8%	Shares	Sole	2022-11-10
2022-06-30	$5,617,554	4,508	-4.8%	Shares	Sole	2022-08-11
2022-03-31	$5,381,232	4,736	-4.5%	Shares	Sole	2022-05-12
2021-12-31	$5,029,957	4,961	+0.8%	Shares	Sole	2022-02-10
2021-09-30	$5,263,550	4,921	+6.3%	Shares	Sole	2021-11-12
2021-06-30	$5,313,082	4,628	-2.3%	Shares	Sole	2021-08-05
2021-03-31	$5,282,396	4,738	-1.9%	Shares	Sole	2021-05-06
2020-12-31	$4,832,187	4,829	+1.9%	Shares	Sole	2021-02-10
2020-09-30	$3,691,681	4,739	-4.3%	Shares	Sole	2020-11-12
2020-06-30	$4,398,115	4,953	-0.7%	Shares	Sole	2020-08-13
2020-03-31	$4,539,080	4,988	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.