MediaAlpha Ownership | Who Owns MediaAlpha?
MediaAlpha Ownership Summary
MediaAlpha is owned by 87.56% institutional investors, 43.21% insiders. White mountains insurance group is the largest institutional shareholder, holding 31.97% of MAX shares. JPM US Small Cap Value-Composite is the top mutual fund, with 2.60% of its assets in MediaAlpha shares.
MAX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | MediaAlpha | 87.56% | 43.21% | -30.78% |
| Sector | Communication Services Stocks | 42.30% | 18.30% | 39.40% |
| Industry | Internet Content & Information Stocks | 43.13% | 20.98% | 35.89% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| White mountains insurance group | 17.86M | 31.97% | $224.46M |
| Blackrock funding, inc. /de | 3.39M | 6.07% | $42.64M |
| Clearline capital lp | 2.71M | 4.86% | $34.11M |
| Vanguard group | 2.57M | 4.54% | $33.29M |
| Jpmorgan chase | 1.88M | 3.37% | $23.29M |
| Broad bay capital management, lp | 1.47M | 2.62% | $16.71M |
| Vanguard capital management | 1.28M | 2.29% | $16.04M |
| Geode capital management | 1.07M | 1.91% | $13.43M |
| Divisadero street capital management, lp | 1.02M | 1.83% | $12.82M |
| Jacobs levy equity management | 971.23K | 1.74% | $12.21M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| White mountains insurance group | 17.86M | 57.03% | $224.46M |
| Jacobs asset management | 919.76K | 7.27% | $11.56M |
| Triad investment management | 368.73K | 5.11% | $4.63M |
| Evr research lp | 440.00K | 2.73% | $5.53M |
| Broad bay capital management, lp | 1.47M | 2.07% | $16.71M |
| Clearline capital lp | 2.71M | 2.04% | $34.11M |
| Speece thorson capital group | 489.10K | 1.31% | $6.15M |
| Corton capital | 16.76K | 0.47% | $190.73K |
| Shay capital | 570.00K | 0.46% | $7.16M |
| Divisadero street capital management, lp | 1.02M | 0.29% | $12.82M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Divisadero street capital management, lp | 1.02M | 0.29% | 933.08K |
| Evr research lp | 440.00K | 2.73% | 440.00K |
| Lazard asset management | 389.81K | 0.01% | 389.81K |
| Citadel advisors | 589.70K | 0.00% | 360.37K |
| Norges bank | 281.90K | 0.00% | 281.90K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Timessquare capital management | - | - | -1.37M |
| Broad bay capital management, lp | 1.47M | 2.07% | -1.03M |
| Driehaus capital management | - | - | -960.76K |
| J. goldman & co lp | 598.07K | 0.19% | -584.60K |
| Nuveen asset management | 587.63K | 0.00% | -551.64K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Evr research lp | 440.00K | 2.73% | 440.00K | $5.53M |
| Norges bank | 281.90K | 0.00% | 281.90K | $3.18M |
| Sixth street partners management company | 259.22K | 0.00% | 259.22K | $3.26M |
| Stifel financial | 126.17K | 0.00% | 126.17K | $1.59M |
| Walleye capital | 80.31K | 0.00% | 80.31K | $1.01M |
Sold Out
| Holder | Change |
|---|---|
| National bank of canada /fi/ | -1.00 |
| American capital advisory | -4.00 |
| Capital performance advisors llp | -6.00 |
| Aquatic capital management | -9.00 |
| Clearstead advisors | -15.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 159 | -5.92% | 48,901,224 | 0.87% | 87 | 1.18% | 71 | -22.83% | 65 | 16.07% |
| Mar 31, 2026 | 58 | -66.47% | 5,812,210 | -87.83% | 10 | 0.15% | 34 | -68.81% | 15 | -69.39% |
| Dec 31, 2025 | 33 | -79.63% | 3,261,197 | -93.19% | 5 | 0.08% | 23 | -75.00% | 6 | -87.50% |
| Sep 30, 2025 | 46 | -69.74% | 5,277,999 | -89.06% | 9 | 0.13% | 24 | -75.26% | 14 | -68.18% |
| Jun 30, 2025 | 151 | 0.67% | 48,242,659 | 64.41% | 85 | 3.09% | 95 | 25.00% | 45 | -6.25% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| JPM US Small Cap Value-Composite | 1.40M | 2.60% | 84.70K |
| JPMorgan Small Cap Blend A | 1.40M | 2.29% | -28.79K |
| Vanguard US Total Market Shares ETF | 947.01K | 1.71% | - |
| Vanguard Total Stock Mkt Idx Inv | 882.70K | 1.63% | -192.00K |
| Vanguard Morn Total Stk Mkt Idx Investor | 882.70K | 1.44% | -192.00K |
| iShares Russell 2000 ETF | 801.60K | 1.31% | -14.21K |
| Empower Small Cap Growth/TimesSquare SP | 580.00K | 1.04% | 183.96K |
| Small Cap Growth / TimesSquare Fund SP | 580.00K | 1.04% | 183.96K |
| Invesco Dorsey Wright Technology MomtETF | 483.90K | 0.88% | - |
| RS Small Cap Value Comp | 482.37K | 0.86% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 17, 2026 | Cramer Keith | Chief Revenue Officer | Sell | $165.92K |
| Aug 14, 2026 | Yeh Kuanling Amy | Chief Technology Officer | Sell | $162.62K |
| Aug 10, 2026 | Nonko Eugene | - | Sell | $43.67K |
| Aug 11, 2026 | Nonko Eugene | - | Sell | $108.61K |
| Aug 10, 2026 | Nonko Eugene | - | Sell | $111.33K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | 52 |
| 2026 Q2 | - | 51 |
| 2026 Q1 | - | 90 |
| 2025 Q4 | - | 70 |
| 2025 Q3 | 1 | 4 |
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