Greedy Insider · Filing
MAX · 13D amendment · White Mountains Insurance Group, Ltd. and affiliates
White Mountains Insurance Group, Ltd. and affiliates reported a 24.3% stake in MediaAlpha, Inc. (MAX) in a Schedule 13D amendment filed on Nov 5, 2026, triggered by an event on Nov 4, 2026.
Describes filing structure, not future returns. Not investment advice.
Primary source: SEC EDGAR · Accession 0000950157-26-001220