SEC Filing Summary: White Mountains Insurance Group Ltd
Business Context and Reporting Period
This filing is a Form 13F Information Table submitted by White Mountains Insurance Group Ltd for the period ending March 31, 2026. The document discloses the company's holdings in equity securities as required by the Securities and Exchange Commission.
Key Financial Metrics
The filing text does not provide a clear value for the company's own revenue, profit, cash flow, margins, debt, or liquidity. Instead, it reports the value of specific equity holdings managed by the company:
- MediaAlpha Inc (Class A): 17,856,614 shares held with a value of $166,066,510.
- SPDR S&P 500 ETF Trust: 226,500 shares held with a value of $147,302,010.
Total reported value for these specific holdings is $313,368,520. Voting authority for both positions is listed as "Sole."
Material Changes
The filing text does not provide a clear value for material changes versus the prior comparable period, as this document is a snapshot of holdings at a specific date without comparative historical data included in the provided text.
Guidance, Outlook, and Risks
The filing text does not provide a clear value for guidance, outlook, management commentary, risks, contingencies, or unusual items. The document contains a standard disclaimer stating that the SEC has not reviewed the information for accuracy or completeness.
Investor Verification Checklist
- Verify the total portfolio value of White Mountains Insurance Group Ltd beyond the two disclosed holdings.
- Confirm the voting authority status for all holdings to ensure full disclosure of control.
- Review the complete Form 13F to identify any other significant equity positions not listed in this excerpt.
- Check subsequent filings for changes in the MediaAlpha Inc and SPDR S&P 500 ETF positions.