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MediaAlpha

171 hedge funds and large institutions have $618M invested in MediaAlpha in 2025 Q4 according to their latest regulatory filings, with 35 funds opening new positions, 76 increasing their positions, 48 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

169% more call options, than puts

Call options by funds: $2.29M | Put options by funds: $851K

84% more first-time investments, than exits

New positions opened: 35 | Existing positions closed: 19

58% more repeat investments, than reductions

Existing positions increased: 76 | Existing positions reduced: 48

14% more capital invested

Capital invested by funds: $544M → $618M (+$74.1M)

10% more funds holding

Funds holding: 156171 (+15)

0.86% less ownership

Funds ownership: 84.84%83.98% (-0.86%)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

Holders
171
Holders Change
+15
Holders Change %
+9.62%
% of All Funds
2.08%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.02%
New
35
Increased
76
Reduced
48
Closed
19
Calls
$2.29M
Puts
$851K
Net Calls
+$1.43M
Net Calls Change
+$101K
Name Holding Trade Value Shares
Change
Change in
Stake
WMIG
1
White Mountains Insurance Group
New Hampshire
$231M
BlackRock
2
BlackRock
New York
$46M -$265K -21,725 -0.6%
Vanguard Group
3
Vanguard Group
Pennsylvania
$33.3M -$362K -29,629 -1%
JP Morgan Chase
4
JP Morgan Chase
New York
$17.7M +$3.78M +309,455 +29%
CC
5
Clearline Capital
New York
$16.9M +$130K +10,604 +0.8%
Renaissance Technologies
6
Renaissance Technologies
New York
$13.5M +$1.23M +100,300 +11%
Morgan Stanley
7
Morgan Stanley
New York
$12.4M +$1.08M +88,123 +10%
Arrowstreet Capital
8
Arrowstreet Capital
Massachusetts
$11.1M +$4.1M +335,452 +64%
DSCM
9
Divisadero Street Capital Management
Florida
$11M +$9.31M +762,104 +877%
AQR Capital Management
10
AQR Capital Management
Connecticut
$10.4M +$408K +33,416 +4%
JGC
11
J. Goldman & Co
New York
$10.2M +$3.12M +255,342 +48%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$10.1M +$92K +7,530 +1%
Millennium Management
13
Millennium Management
New York
$9.74M -$8.28M -677,811 -47%
State Street
14
State Street
Massachusetts
$9.47M +$724K +59,281 +9%
Victory Capital Management
15
Victory Capital Management
Texas
$9.45M +$228K +18,638 +3%
Goldman Sachs
16
Goldman Sachs
New York
$9.45M -$6.72M -550,593 -43%
JAM
17
Jacobs Asset Management
New York
$9.13M -$1.39M -113,727 -14%
Jacobs Levy Equity Management
18
Jacobs Levy Equity Management
New Jersey
$9.07M +$1.71M +139,732 +25%
N
19
Nuveen
North Carolina
$8.63M -$292K -23,926 -3%
Acadian Asset Management
20
Acadian Asset Management
Massachusetts
$7.84M +$2.28M +186,332 +44%
SC
21
Shay Capital
New York
$7.65M -$2.43M -199,100 -25%
GIPM
22
G2 Investment Partners Management
New York
$6.44M +$1.48M +121,443 +32%
D.E. Shaw & Co
23
D.E. Shaw & Co
New York
$5.15M -$702K -57,503 -13%
Jane Street
24
Jane Street
New York
$4.66M +$2.25M +183,824 +104%
Franklin Resources
25
Franklin Resources
California
$4.26M +$131K +10,740 +3%