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MediaAlpha
MAX

Overview Fund Activity

150 hedge funds and large institutions have $527M invested in MediaAlpha in 2025 Q2 according to their latest regulatory filings, with 29 funds opening new positions, 65 increasing their positions, 45 reducing their positions, and 22 closing their positions.

Holders
150
Holders Change
+6
Holders Change %
+4.17%
% of All Funds
2.01%
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
45
Closed
22
Calls
$845K
Puts
$29K
Net Calls
+$816K
Net Calls Change
-$1.38M

Top Buyers

1
Goldman Sachs
1
Goldman Sachs
New York
$22M
2
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$6.93M
3
NL
3
Nuveen LLC
North Carolina
$9.86M
4
JAM
4
Jacobs Asset Management
New York
$8.75M
5
Lazard Asset Management
5
Lazard Asset Management
New York
$4.27M

Top Sellers

1
CC
1
Clearline Capital
New York
$15.6M
2
TCM
2
TimesSquare Capital Management
New York
$0
3
Millennium Management
3
Millennium Management
New York
$2M
4
JGC
4
J. Goldman & Co
New York
$1.92M
5
Citadel Advisors
5
Citadel Advisors
Florida
$1.27M
Name Market Value Shares Shares
Change 		Shares
Change %
WMIG
1
White Mountains Insurance Group
New Hampshire
$196M 17,856,614 – –
BlackRock
2
BlackRock
New York
$43.8M 4,003,419 +305,693 +8%
Vanguard Group
3
Vanguard Group
Pennsylvania
$31.3M 2,859,199 -54,129 -2%
BBCM
4
Broad Bay Capital Management
New York
$27.4M 2,498,507 -249,271 -9%
Goldman Sachs
5
Goldman Sachs
New York
$22M 2,007,186 +1,270,655 +173%
CC
6
Clearline Capital
New York
$15.6M 1,425,308 -1,229,613 -46%
NL
7
Nuveen LLC
North Carolina
$9.86M 900,790 +394,883 +78%
D.E. Shaw & Co
8
D.E. Shaw & Co
New York
$9.8M 895,348 +224,657 +33%
JAM
9
Jacobs Asset Management
New York
$8.75M 798,666 +390,254 +96%
Renaissance Technologies
10
Renaissance Technologies
New York
$8.46M 772,300 +206,800 +37%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$8.37M 764,702 +36,949 +5%
Morgan Stanley
12
Morgan Stanley
New York
$8.28M 755,926 +18,005 +2%
SC
13
Shay Capital
New York
$7.34M 670,000 +98,159 +17%
State Street
14
State Street
Massachusetts
$7.15M 652,838 +29,051 +5%
Janus Henderson Group
15
Janus Henderson Group
United Kingdom
$6.93M 632,888 +619,026 +4,466%
AQR Capital Management
16
AQR Capital Management
Connecticut
$6.59M 601,593 +43,797 +8%
JPMorgan Chase & Co
17
JPMorgan Chase & Co
New York
$5.94M 542,246 +233,948 +76%
Acadian Asset Management
18
Acadian Asset Management
Massachusetts
$5.82M 532,437 +211,135 +66%
UBS Group
19
UBS Group
Switzerland
$5.79M 528,380 +23,530 +5%
Qube Research & Technologies (QRT)
20
Qube Research & Technologies (QRT)
United Kingdom
$5.76M 526,349 +56,724 +12%
Arrowstreet Capital
21
Arrowstreet Capital
Massachusetts
$5.3M 484,342 +188,288 +64%
Jacobs Levy Equity Management
22
Jacobs Levy Equity Management
New Jersey
$5.14M 469,561 +330,963 +239%
Lazard Asset Management
23
Lazard Asset Management
New York
$4.27M 389,806 +389,806 New
HIM
24
Hillsdale Investment Management
Ontario, Canada
$3.93M 359,200 +144,600 +67%
Pacer Advisors
25
Pacer Advisors
Pennsylvania
$3.66M 333,958 +333,958 New
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