DOSSIER · 13F Holders · Q1 2026Technology · Services-Business Services, NECMega-capCrowded
MAX
MEDIAALPHA INC
170 institutions still hold MEDIAALPHA INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 58450V104·Services-Business Services, NEC·170 13F holders·last filed Mar 31, 2026
AI Holders Summary · Q1 2026
170 institutions reported MAX in Q1 2026. WHITE MOUNTAINS INSURANCE GROUP LTD leads at 46.3% of the visible book. -107 net institutions QoQ — distribution reading.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.
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