MAX MediaAlpha, Inc.: institutional ownership and insider trading
164 funds reported holding $656M of MediaAlpha, Inc. in their latest 13F filings; in Q2 2026 funds net sold $4.54M, with 21 new positions and 28 funds selling out; over the last 12 months insiders bought $0 and sold $33.0M on the open market.
Famous investors holding MAX
- Renaissance Technologies (Renaissance Technologies): $7.22M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $8.46M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $6.74M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $5.15M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $466K, 0.0% of the portfolio
Largest institutional holders of MAX
- WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) — $224M
- BlackRock, Inc. (BLK) — $42.6M
- Clearline Capital LP — $34.1M
- VANGUARD GROUP INC — $33.3M
- JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) — $23.3M
- VANGUARD CAPITAL MANAGEMENT LLC — $16.0M
- GEODE CAPITAL MANAGEMENT, LLC — $13.4M
- Divisadero Street Capital Management, LP — $12.8M
- JACOBS LEVY EQUITY MANAGEMENT, INC — $12.2M
- ACADIAN ASSET MANAGEMENT LLC — $12.0M
Recent MAX insider trades
- Oct 21, 2026: Nonko Eugene sold 27,639 shares ($320K)
- Oct 19, 2026: Cramer Keith sold 12,000 shares ($137K)
- Oct 16, 2026: Yeh Kuanling Amy sold 3,000 shares ($35.3K)
- Oct 14, 2026: Nonko Eugene sold 23,202 shares ($237K)
5%+ owners
- White Mountains Insurance Group, Ltd.: 33.0% (Schedule 13D/A, filed May 1, 2026)
- Divisadero Street Capital Management, LP: 5.8% (Schedule 13G, filed Jul 28, 2026)