CUSIP 58450V104CL AMAXQ4 2025
44 filings · latest Nov 12, 2025
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | White Mountains Insurance Group Ltd | 17.86M | $231.24M |
| 2 | Blackrock, Inc. | 3.55M | $45.99M |
| 3 | Vanguard Group Inc | 2.57M | $33.29M |
| 4 | Jpmorgan Chase & Co | 1.37M | $17.71M |
| 5 | Clearline Capital LP | 1.30M | $16.85M |
| 6 | Renaissance Technologies LLC | 1.05M | $13.54M |
| 7 | Morgan Stanley | 960.2K | $12.43M |
| 8 | Arrowstreet Capital, Limited Partnership | 855.9K | $11.08M |
| 9 |
| 4 | Apr 30, 2025 | The Vanguard Group | 13G/A | 5.3% | 2.91M | SEC |
| 5 | Apr 29, 2025 | Blackrock, Inc. | 13G/A | 4.2% | 2.33M | SEC |
| 6 | Feb 28, 2025 | Eugene Nonko | 13D/A | 10.8% | — | SEC |
| 7 | Nov 12, 2024 | Blackrock, Inc. | 13G | 6.9% | 3.77M | SEC |
| 8 | Nov 12, 2024 | Insignia Capital Partners Gp, L.L.C. | 13G/A | 5.5% | 3.23M | SEC |
| 9 | Nov 12, 2024 | Vanguard Group Inc | 13G/A | 6.3% | 3.45M | SEC |
| 10 | Nov 4, 2024 | Vanguard Group Inc | 13G/A | 6.3% | 3.45M | SEC |
See the full Schedule 13D/13G history for Mediaalpha Inc.
Unlock full history| Divisadero Street Capital Management, LP |
| 849.0K |
| $10.99M |
| 10 | Aqr Capital Management LLC | 804.1K | $10.41M |