13F-HR - White Mountains Insurance Group, Ltd. | StockGist

Total Value

$261.93B

Holdings Count

Period of Report

Dec 31, 2025

Report Type

Issuer	CUSIP	Value	Shares	Voting (S/Sh/N)
MEDIAALPHA INC	58450V104	$231.24B	17,856,614	17,856,614 / 0 / 0
SPDR S&P 500 ETF TR	78462F103	$30.69B	45,000	45,000 / 0 / 0