MediaAlpha Ownership | Who Owns MediaAlpha?


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MediaAlpha Ownership Summary


MediaAlpha is owned by 5.76% institutional investors, 39.65% insiders, and 54.59% retail investors. White mountains insurance group is the largest institutional shareholder, holding 31.54% of MAX shares. JPMorgan Small Cap Blend A is the top mutual fund, with 2.44% of its assets in MediaAlpha shares.

MAX Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockMediaAlpha5.76%39.65%54.59%
SectorCommunication Services Stocks 26.03%16.24%57.73%
IndustryInternet Content & Information Stocks 24.23%16.10%59.68%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
White mountains insurance group17.86M31.54%$231.24M
Blackrock funding, inc. /de3.55M6.27%$45.99M
Vanguard group2.57M4.54%$33.29M
Broad bay capital management, lp1.47M2.62%$16.71M
Jpmorgan chase1.37M2.42%$17.71M
Clearline capital lp1.29M2.30%$14.69M
Renaissance1.05M1.85%$13.54M
Morgan stanley960.15K1.70%$12.43M
Triad investment management944.97K1.68%$9.26M
Jacobs asset management819.03K1.46%$9.32M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
White mountains insurance group17.86M88.28%$231.24M
Jacobs asset management819.03K5.10%$9.32M
Triad investment management944.97K3.41%$9.26M
Broad bay capital management, lp1.47M2.07%$16.71M
Speece thorson capital group499.01K1.06%$4.64M
G2 investment partners management375.47K0.86%$4.27M
Shay capital790.10K0.78%$8.99M
Clearline capital lp1.29M0.67%$14.69M
Corton capital16.76K0.47%$190.73K
Olympiad research lp15.49K0.25%$176.30K

Top Buyers

HolderShares% AssetsChange
Triad investment management944.97K3.41%669.54K
Victory capital management710.82K0.00%658.63K
Speece thorson capital group499.01K1.06%499.01K
Aqr capital management472.21K0.01%401.81K
Lazard asset management389.81K0.01%389.81K

Top Sellers

HolderShares% AssetsChange
Timessquare capital management---1.37M
Broad bay capital management, lp1.47M2.07%-1.03M
Driehaus capital management---960.76K
Nuveen asset management587.63K0.00%-551.64K
Goldman sachs group729.37K0.00%-550.59K

New Positions

HolderShares% AssetsChangeValue
Speece thorson capital group499.01K1.06%499.01K$4.64M
G2 investment partners management375.47K0.86%375.47K$4.27M
Norges bank281.90K0.00%281.90K$3.18M
Vanguard fiduciary trust227.11K0.00%227.11K$2.11M
Hrt financial lp109.02K0.00%109.02K$1.41M

Sold Out

HolderChange
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


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 202533-79.63%3,261,197-93.19%50.08%23-75.00%6-87.50%
Sep 30, 202546-69.74%5,277,999-89.06%90.13%24-75.26%14-68.18%
Jun 30, 20251510.67%48,242,65964.41%853.09%9525.00%45-6.25%
Mar 31, 2025151-9.04%47,203,854-1.61%841.11%73-29.13%5115.91%
Dec 31, 20241655.10%47,951,154-1.84%871.10%1016.32%4515.38%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
JPMorgan Small Cap Blend A1.32M2.44%59.02K
JPM US Small Cap Value-Composite1.32M2.39%550.26K
Vanguard Total Stock Mkt Idx Inv981.80K1.78%-
Vanguard US Total Market Shares ETF947.01K1.71%-
iShares Russell 2000 ETF798.81K1.48%6.72K
Empower Small Cap Growth/TimesSquare SP580.00K1.04%183.96K
Small Cap Growth / TimesSquare Fund SP580.00K1.04%183.96K
Invesco Dorsey Wright Technology MomtETF483.90K0.88%-
RS Small Cap Value Comp482.37K0.86%-
Victory RS Partners A482.37K0.86%-

Recent Insider Transactions


DateNameRoleActivityValue
May 06, 2026Yi Steven See RemarksSell$36.54K
May 04, 2026Yi Steven See RemarksSell$36.20K
May 05, 2026Yi Steven See RemarksSell$35.72K
Apr 28, 2026Yi Steven See RemarksSell$65.65K
Apr 27, 2026Yi Steven See RemarksSell$336.24K

Insider Transactions Trends


DateBuySell
2026 Q2-28
2026 Q1-90
2025 Q4-70
2025 Q314
2025 Q2--

MAX Ownership FAQ


Who Owns MediaAlpha?

MediaAlpha shareholders are primarily institutional investors at 5.76%, followed by 39.65% insiders and 54.59% retail investors. The average institutional ownership in MediaAlpha's industry, Internet Content & Information Stocks , is 24.23%, which MediaAlpha falls below.

Who owns the most shares of MediaAlpha?

MediaAlpha’s largest shareholders are White mountains insurance group (17.86M shares, 31.54%), Blackrock funding, inc. /de (3.55M shares, 6.27%), and Vanguard group (2.57M shares, 4.54%). Together, they hold 42.35% of MediaAlpha’s total shares outstanding.

Does Blackrock own MediaAlpha?

BlackRock is not among the top 10 institutional shareholders of MediaAlpha.

Who is MediaAlpha’s biggest shareholder by percentage of total assets invested?

White mountains insurance group is MediaAlpha’s biggest shareholder by percentage of total assets invested, with 88.28% of its assets in 17.86M MediaAlpha shares, valued at 231.24M$.

Who is the top mutual fund holder of MediaAlpha shares?

JPMorgan Small Cap Blend A is the top mutual fund holder of MediaAlpha shares, with 2.44% of its total shares outstanding invested in 1.32M MediaAlpha shares.

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