MAX · smart money activity

Who's buying MediaAlpha, Inc.?

MediaAlpha, Inc. has 1 recent smart-money filing on record (13D), the latest on Oct 30, 2026.

Smart money score Score and rank in Pro

Latest filingOct 30, 2026

Independent buyers1

Signal sources13D

Insiders' avg buy price Pro

MAX insider buying, 13F and 13D filings

Filed Oct 30, 202613D stake (no activist plan)

White Mountains Insurance Group, Ltd. (with 1 co-filer): Amended Schedule 13D: 35.1% stake

View the filing on SEC EDGAR ↗

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Signals come from SEC filings: Form 4 (insiders, filed within 2 business days), 13F (fund holdings, up to 45 days after quarter end) and Schedule 13D (5%+ activist stakes). This page reports what the filings show; it is not investment advice.