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MediaAlpha

151 hedge funds and large institutions have $528M invested in MediaAlpha in 2025 Q2 according to their latest regulatory filings, with 29 funds opening new positions, 65 increasing their positions, 46 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
151
Holders Change
+7
Holders Change %
+4.86%
% of All Funds
2.02%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
29
Increased
65
Reduced
46
Closed
22
Calls
$1.42M
Puts
$29K
Net Calls
+$1.39M
Net Calls Change
-$803K
Name Holding Trade Value Shares
Change
Shares
Change %
WMIG
1
White Mountains Insurance Group
New Hampshire
$196M
BlackRock
2
BlackRock
New York
$43.8M +$3.35M +305,693 +8%
Vanguard Group
3
Vanguard Group
Pennsylvania
$31.3M -$593K -54,129 -2%
BBCM
4
Broad Bay Capital Management
New York
$27.4M -$2.73M -249,271 -9%
Goldman Sachs
5
Goldman Sachs
New York
$22M +$13.9M +1,270,655 +173%
CC
6
Clearline Capital
New York
$15.6M -$13.5M -1,229,613 -46%
NL
7
Nuveen LLC
North Carolina
$9.86M +$4.32M +394,883 +78%
D.E. Shaw & Co
8
D.E. Shaw & Co
New York
$9.8M +$2.46M +224,657 +33%
JAM
9
Jacobs Asset Management
New York
$8.75M +$4.27M +390,254 +96%
Renaissance Technologies
10
Renaissance Technologies
New York
$8.46M +$2.26M +206,800 +37%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$8.37M +$405K +36,949 +5%
Morgan Stanley
12
Morgan Stanley
New York
$8.28M +$197K +18,005 +2%
SC
13
Shay Capital
New York
$7.34M +$1.07M +98,159 +17%
State Street
14
State Street
Massachusetts
$7.15M +$318K +29,051 +5%
Janus Henderson Group
15
Janus Henderson Group
United Kingdom
$6.93M +$6.78M +619,026 +4,466%
AQR Capital Management
16
AQR Capital Management
Connecticut
$6.59M +$480K +43,797 +8%
JPMorgan Chase & Co
17
JPMorgan Chase & Co
New York
$5.94M +$2.56M +233,948 +76%
Acadian Asset Management
18
Acadian Asset Management
Massachusetts
$5.82M +$2.31M +211,135 +66%
UBS Group
19
UBS Group
Switzerland
$5.79M +$258K +23,530 +5%
Qube Research & Technologies (QRT)
20
Qube Research & Technologies (QRT)
United Kingdom
$5.76M +$621K +56,724 +12%
Arrowstreet Capital
21
Arrowstreet Capital
Massachusetts
$5.3M +$2.06M +188,288 +64%
Jacobs Levy Equity Management
22
Jacobs Levy Equity Management
New Jersey
$5.14M +$3.62M +330,963 +239%
Lazard Asset Management
23
Lazard Asset Management
New York
$4.27M +$4.27M +389,806 New
HIM
24
Hillsdale Investment Management
Ontario, Canada
$3.93M +$1.58M +144,600 +67%
Pacer Advisors
25
Pacer Advisors
Pennsylvania
$3.66M +$3.66M +333,958 New