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MediaAlpha

144 hedge funds and large institutions have $436M invested in MediaAlpha in 2025 Q1 according to their latest regulatory filings, with 21 funds opening new positions, 60 increasing their positions, 44 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
144
Holders Change
-16
Holders Change %
-10%
% of All Funds
1.96%
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.03%
New
21
Increased
60
Reduced
44
Closed
34
Calls
$3.32M
Puts
$1.12M
Net Calls
+$2.19M
Net Calls Change
+$130K
Name Holding Trade Value Shares
Change
Shares
Change %
WMIG
1
White Mountains Insurance Group
New Hampshire
$165M
BlackRock
2
BlackRock
New York
$34.2M +$1.3M +140,677 +4%
Vanguard Group
3
Vanguard Group
Pennsylvania
$26.9M -$6.56M -710,016 -20%
BBCM
4
Broad Bay Capital Management
New York
$25.4M +$4.89M +529,093 +24%
CC
5
Clearline Capital
New York
$24.5M +$13.6M +1,466,760 +123%
TCM
6
TimesSquare Capital Management
New York
$12.7M -$2.37M -256,641 -16%
Morgan Stanley
7
Morgan Stanley
New York
$6.82M +$1.17M +126,860 +21%
Goldman Sachs
8
Goldman Sachs
New York
$6.81M -$632K -68,399 -8%
Geode Capital Management
9
Geode Capital Management
Massachusetts
$6.73M +$268K +29,050 +4%
D.E. Shaw & Co
10
D.E. Shaw & Co
New York
$6.2M +$2.7M +292,480 +77%
State Street
11
State Street
Massachusetts
$5.76M +$164K +17,801 +3%
Millennium Management
12
Millennium Management
New York
$5.68M -$1.54M -166,807 -21%
SC
13
Shay Capital
New York
$5.28M +$1.15M +124,341 +28%
JGC
14
J. Goldman & Co
New York
$5.25M +$2.37M +256,927 +83%
Renaissance Technologies
15
Renaissance Technologies
New York
$5.23M +$242K +26,200 +5%
AQR Capital Management
16
AQR Capital Management
Connecticut
$5.15M +$791K +85,581 +18%
NL
17
Nuveen LLC
North Carolina
$4.67M +$4.67M +505,907 New
UBS Group
18
UBS Group
Switzerland
$4.66M +$820K +88,724 +21%
Qube Research & Technologies (QRT)
19
Qube Research & Technologies (QRT)
United Kingdom
$4.34M -$1.85M -200,528 -30%
Marshall Wace
20
Marshall Wace
United Kingdom
$4.24M +$654K +70,808 +18%
Citadel Advisors
21
Citadel Advisors
Florida
$3.98M +$2.54M +275,205 +178%
JAM
22
Jacobs Asset Management
New York
$3.77M +$476K +51,512 +14%
Charles Schwab
23
Charles Schwab
California
$2.96M -$33.8K -3,658 -1%
Acadian Asset Management
24
Acadian Asset Management
Massachusetts
$2.96M -$1.14M -123,451 -28%
JPMorgan Chase & Co
25
JPMorgan Chase & Co
New York
$2.85M +$1.72M +185,912 +152%