White Mountains Insurance Group Ltd

Institutional holders · 13F as of Dec 31, 2025

Holder	Value	Shares	% of shares
VANGUARD GROUP INC	$489.79M	235,698	9.88%
Dimensional Fund Advisors LP	$325.43M	156,604	6.56%
Neuberger Berman Group LLC	$269.42M	129,654	5.43%
River Road Asset Management, LLC	$264.78M	120,519	5.05%
BlackRock, Inc.	$244.39M	117,871	4.94%
Fuller & Thaler Asset Management, Inc.	$229.72M	104,561	4.38%
Cooke & Bieler L.P.	$221.47M	106,579	4.47%
FIDUCIARY MANAGEMENT INC /WI	$187.71M	90,333	3.78%
Morgan Stanley	$170.72M	82,151	3.44%
Wallace Capital Management Inc.	$166.96M	80,347	3.37%
Boston Partners	$126.22M	57,459	2.41%
LONDON CO OF VIRGINIA	$125.54M	57,131	2.39%
STATE STREET CORPORATION	$104.20M	50,257	2.11%
GEODE CAPITAL MANAGEMENT, LLC	$92.56M	42,119	1.76%
Jeffrey L. Gendell	$83.08M	37,814	1.58%
REINHART PARTNERS, LLC.	$82.15M	37,374	1.57%
Norges Bank	$66.88M	32,184	1.35%
SOUTHEASTERN ASSET MANAGEMENT INC/TN	$65.77M	31,652	1.33%
BANK OF AMERICA CORP /DE	$59.87M	28,809	1.21%
Cannell & Spears LLC	$58.42M	28,115	1.18%
RAYMOND JAMES FINANCIAL INC	$49.81M	23,969	1.00%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	$48.29M	23,238	0.97%
Mraz, Amerine & Associates, Inc.	$47.02M	22,629	0.95%
Allspring Global Investments Holdings, LLC	$41.23M	20,193	0.85%
Select Equity Group, L.P.	$40.96M	19,713	0.83%
BROWN ADVISORY INC	$39.20M	17,844	0.75%
NORTHERN TRUST CORP	$34.63M	16,667	0.70%
Wellington Management Group LLP	$33.10M	15,928	0.67%
ENVESTNET ASSET MANAGEMENT INC	$32.83M	15,798	0.66%
HORIZON KINETICS ASSET MANAGEMENT LLC	$28.81M	13,112	0.55%
ELKHORN PARTNERS LIMITED PARTNERSHIP	$28.26M	13,598	0.57%
Victory Capital Management, Inc.	$22.15M	10,684	0.45%
D. E. Shaw & Co., Inc.	$19.57M	8,910	0.37%
WELLS FARGO & COMPANY/MN	$18.99M	9,141	0.38%
Bank of New York Mellon Corp/The	$18.55M	8,444	0.35%
AQR Capital Management, LLC	$17.00M	7,738	0.32%
SEI INVESTMENTS CO	$16.45M	7,916	0.33%
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	$15.91M	7,655	0.32%
Quantinno Capital Management LP	$15.11M	7,271	0.30%
BNP PARIBAS FINANCIAL MARKETS	$14.55M	6,623	0.28%
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	$13.96M	6,716	0.28%
Gotham Asset Management, LLC	$13.96M	6,716	0.28%
Hotchkis and Wiley Capital Management, LLC	$13.29M	6,048	0.25%
WCM Investment Management, LLC	$13.15M	5,995	0.25%
UBS Group AG	$12.47M	6,001	0.25%
ROYCE & ASSOCIATES LP	$12.36M	5,947	0.25%
THE GOLDMAN SACHS GROUP, INC.	$10.93M	5,260	0.22%
Williams Jones Wealth Management, LLC.	$10.79M	5,193	0.22%
Swiss National Bank	$10.57M	5,086	0.21%
Phocas Financial Corp.	$9.43M	4,292	0.18%