White Mountains Insurance Group Ltd Portfolio Stock Holdings

According to the SEC 13F filed on August 12, 2026, White Mountains Insurance Group Ltd disclosed 2 stock positions valued at approximately $393.60M as of quarter-end June 30, 2026. The largest holdings include MEDIAALPHA INC and SPDR S&P 500 ETF TR.

Report Period: June 30, 2026
No. of Stocks: 2
Portfolio Value: $393.60M

Holdings by Sector

White Mountains Insurance Group Ltd Portfolio Holdings in Q2 2026

Company	Symbol	Sector	Portfolio %	Shares	Change (Shares)	Change %	Value
MEDIAALPHA INC	MAX	Communication Services	57.03%	17,856,614	-	-	$224,457,638
SPDR S&P 500 ETF TR	SPY	Other	42.97%	226,500	-	-	$169,143,405

Showing 2 of 2 holdings in the latest reporting period.