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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

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding in top 10

Funds holding in top 10:

less ownership

Funds ownership:

10% less funds holding

Funds holding: 160144 (-16)

19% less capital invested

Capital invested by funds: $542M → $436M (-$105M)

38% less first-time investments, than exits

New positions opened: 21 | Existing positions closed: 34

Holders
144
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.32M
Puts
$1.12M
Net Calls
Net Calls Change

Top Buyers

1 +$13.6M
2 +$4.89M
3 +$2.7M
4
Citadel Advisors
Citadel Advisors
Florida
+$2.54M
5
JGC
J. Goldman & Co
New York
+$2.37M

Top Sellers

1 -$10.8M
2 -$6.56M
3 -$5.33M
4
Lazard Asset Management
Lazard Asset Management
New York
-$5.15M
5
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
-$4.31M
Name Holding Trade Value Shares
Change
Change in
Stake
SG Americas Securities
101
SG Americas Securities
New York
$132K
DFCM
102
Dark Forest Capital Management
Puerto Rico
$131K
Janus Henderson Group
103
Janus Henderson Group
United Kingdom
$130K
VRS
104
Virginia Retirement Systems
Virginia
$117K
Zurich Cantonal Bank
105
Zurich Cantonal Bank
Switzerland
$110K
BC
106
Bridgefront Capital
Texas
$106K
Manulife (Manufacturers Life Insurance)
107
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$104K
DM
108
Deerfield Management
New York
$99.7K
Mackenzie Financial
109
Mackenzie Financial
Ontario, Canada
$97.6K
ASRS
110
Arizona State Retirement System
Arizona
$94.9K
New York State Common Retirement Fund
111
New York State Common Retirement Fund
New York
$91.1K
Simplex Trading
112
Simplex Trading
Illinois
$80K
PFSRSONJ
113
Police & Firemen's Retirement System of New Jersey
New Jersey
$63K
KK
114
KLP Kapitalforvaltning
Norway
$54.8K
SOW
115
State of Wyoming
Wyoming
$46.4K
TRCT
116
Tower Research Capital (TRC)
New York
$40.1K
US Bancorp
117
US Bancorp
Minnesota
$38.4K
AIP
118
Ameritas Investment Partners
Nebraska
$28K
C
119
Covestor
United Kingdom
$24K
Group One Trading
120
Group One Trading
Illinois
$20.2K
Fidelity Investments
121
Fidelity Investments
Massachusetts
$18.4K
QL
122
Quarry LP
New York
$14K
BIG
123
Brooklyn Investment Group
New York
$13.8K
AB
124
Amalgamated Bank
New York
$10K
Jones Financial Companies
125
Jones Financial Companies
Missouri
$6.54K