HARBOR CAPITAL ADVISORS, INC.

Position in WTM — White Mountains Insurance Group Ltd

CIK 1039128 CHICAGO, IL

Position in WTM

as of Jun 30, 2026 · filed Aug 7, 2026 Compact

Position Value

$2,237,187

-$43,257 QoQ

Shares Held

1,079

+3.9% QoQ

Ownership

0.045%

of shares outstanding

% of Portfolio

0.17%

of 13F equity value

Holder Rank

#108

of 355 holders

Holding Since

Jun 2023

11 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Financial Services · as of Jun 30, 2026

HARBOR CAPITAL ADVISORS, INC. holds $20,002,325 across 21 Insurance - Property & Casualty names. WTM ranks #3 (11.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PRCH	Porch Group, Inc.	409,715	$6,162,113
2	SKWD	Skyward Specialty Insurance Group, Inc.	75,172	$4,386,286
3	WTM	White Mountains Insurance Group Ltd This page	1,079	$2,237,187
4	PGR	Progressive Corp/Oh/	9,638	$2,105,421
5	TRV	Travelers Companies, Inc.	3,589	$1,184,800
6	HMN	Horace Mann Educators Corp /De/	13,971	$721,602
7	KNSL	Kinsale Capital Group, Inc.	2,126	$701,176
8	GBLI	Global Indemnity Group, LLC	23,692	$593,010

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$2,237,187	1,079	+3.9%	Shares	Sole	2026-08-07
2026-03-31	$2,280,444	1,038	+20.1%	Shares	Sole	2026-04-28
2025-12-31	$1,795,417	864	+1.4%	Shares	Sole	2026-01-20
2025-09-30	$1,424,135	852	-71.4%	Shares	Sole	2025-10-15
2025-06-30	$5,344,062	2,976	-2.7%	Shares	Sole	2025-07-09
2025-03-31	$5,889,127	3,058	+25.8%	Shares	Sole	2025-04-14
2024-12-31	$4,728,441	2,431	+1.7%	Shares	Sole	2025-01-10
2024-09-30	$4,053,918	2,390	+100.5%	Shares	Sole	2024-10-29
2024-06-30	$2,166,400	1,192	+282.1%	Shares	Sole	2024-07-09
2024-03-31	$559,821	312	+380.0%	Shares	Sole	2024-05-13
2023-06-30	$90,279	65	—	Shares	Sole	2023-07-11
No filing history on record for this holder in this stock.