Institutional Ownership
Mediaalpha Inc
CUSIP 58450V104CL AMAXQ1 2026
Institutional Holders
155
13F filers
Shares Held
46.00M
Aggregate institutional
Institutional Value
$410.86M
Q1 2026
Net New Holders
-11
29 new · 40 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions29
Increased59
Decreased53
Sold out40
Institutional Holders
155 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | White Mountains Insurance Group Ltd | 17.86M | $166.07M | 0 | Held |
| 2 | Blackrock, Inc. | 3.48M | $32.33M | −74.8K | Reduced |
| 3 | Clearline Capital LP | 2.59M | $24.09M | +1.29M | Added |
| 4 | Jpmorgan Chase & Co | 1.75M | $16.48M | +377.8K | Added |
| 5 | J. Goldman & Co LP | 1.18M | $11.00M | +396.3K | Added |
| 6 | Geode Capital Management, LLC | 1.07M | $9.95M | +292.8K | Added |
| 7 | Arrowstreet Capital, Limited Partnership | 1.06M | $9.88M | +206.1K | Added |
| 8 | Jacobs Asset Management, LLC | 924.4K | $8.60M | +219.1K | Added |
| 9 | State Street Corp | 838.2K | $7.79M | +106.8K | Added |
| 10 | Shay Capital LLC | 775.0K | $7.21M | +184.0K | Added |
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