Significant Ownership of WHITE MOUNTAINS INSURANCE GROUP LTD

Signature - Title
/s/ Robert L. Seelig - Robert L. Seelig - Executive Vice President and General Counsel
Location
Hanover, NH
Summary
This page shows a list of all the recent SCHEDULE 13D/G filings made by WHITE MOUNTAINS INSURANCE GROUP LTD.

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Significant Ownership of WHITE MOUNTAINS INSURANCE GROUP LTD

Sym Company Class Ownership Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
MAX MediaAlpha, Inc. Class A Common Stock, par value $0.01 per share 32% $184,637,389 17,856,614 White Mountains Insurance Group, Ltd. 08 Aug 2025

Schedules 13D/G Reported by WHITE MOUNTAINS INSURANCE GROUP LTD:

Sym Target Class Ownership Change Current Shares Change Value Reporting name Form Report Period Filing Date
* An asterisk sign (*) next to the price indicates that the price is likely invalid.