MEDIAALPHA INC CL A is a security (CUSIP 58450V104) tracked across SEC portfolio filings. 159 institutional managers reported $462.0M on Form 13F as of 2026-06-30; 15 registered fund positions totaling $5.0M via N-PORT as of 2026-05-31.
Showing 15 of 159 managers by value.
| Manager | Location | Value | Shares |
|---|---|---|---|
| WHITE MOUNTAINS INSURANCE GROUP LTD | Hanover, NH | $166.1M | 17,856,614 |
| VANGUARD GROUP INC | Valley Forge, PA | $33.3M | 2,570,992 |
| BlackRock, Inc. | New York, NY | $32.3M | 3,476,687 |
| Clearline Capital LP | NEW YORK, NY | $24.1M | 2,590,670 |
| J. Goldman & Co LP | NEW YORK, NY | $17.4M | 1,182,673 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $16.5M | 1,745,679 |
| GEODE CAPITAL MANAGEMENT, LLC | BOSTON, MA | $10.0M | 1,070,084 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $9.9M | 1,061,981 |
| JACOBS ASSET MANAGEMENT, LLC | NEW YORK, NY | $8.6M | 924,443 |
| STATE STREET CORP | BOSTON, MA | $7.8M | 838,161 |
| Shay Capital LLC | New York, NY | $7.2M | 775,000 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | FLORHAM PARK, NJ | $7.0M | 750,054 |
| RENAISSANCE TECHNOLOGIES LLC | NEW YORK, NY | $6.7M | 719,300 |
| MORGAN STANLEY | NEW YORK, NY | $6.5M | 703,018 |
| Nuveen, LLC | CHARLOTTE, NC | $6.5M | 701,399 |
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD EXTENDED MARKET INDEX FUND | VANGUARD INDEX FUNDS | $3.5M | 0.43% |
| Small Cap Growth Fund | VALIC Co II | $1.8M | 59.97% |
| Small Cap Core Portfolio | Bernstein Fund Inc | $1.6M | 22.68% |
| VANGUARD RUSSELL 2000 INDEX FUND | VANGUARD SCOTTSDALE FUNDS | $1.5M | 0.88% |
| U.S. MICRO CAP PORTFOLIO | DFA INVESTMENT DIMENSIONS GROUP INC | $1.2M | 1.57% |
| VANGUARD EXPLORER FUND | VANGUARD EXPLORER FUND | $932K | 0.43% |
| Master Small Cap Index Series | Quantitative Master Series LLC | $499K | 1.03% |
| Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF | Goldman Sachs ETF Trust | $375K | 3.81% |
| VANGUARD BALANCED INDEX FUND | VANGUARD VALLEY FORGE FUNDS | $169K | 0.03% |
| BlackRock Advantage SMID Cap Fund, Inc. | BlackRock Advantage SMID Cap Fund, Inc. | $132K | 1.75% |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND | VANGUARD INSTITUTIONAL INDEX FUNDS | $115K | 0.04% |
| DWS Small Cap Index VIP | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $44K | 1.05% |
| Putnam Multi-Asset Income Fund | Putnam Asset Allocation Funds | $9K | 0.10% |
| TIAA Separate Account VA-1 - Stock Index Account | TIAA Separate Account VA-1 | $5K | 0.04% |
| Neuberger Long Short Fund | NEUBERGER BERMAN ALTERNATIVE FUNDS | $-6.9M | -8.37% |