MGNI icon

Magnite
MGNI

Overview Fund Activity

290 hedge funds and large institutions have $1.51B invested in Magnite in 2025 Q1 according to their latest regulatory filings, with 53 funds opening new positions, 102 increasing their positions, 96 reducing their positions, and 42 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
290
Holders Change
+7
Holders Change %
+2.47%
% of All Funds
3.94%
Holding in Top 10
7
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-30%
% of All Funds
0.1%
New
53
Increased
102
Reduced
96
Closed
42
Calls
$41.6M
Puts
$50.1M
Net Calls
-$8.44M
Net Calls Change
-$4.39M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$110M
2
Capital Research Global Investors
Capital Research Global Investors
California
$147M
3
American Century Companies
American Century Companies
Missouri
$33.8M
4
Pacer Advisors
Pacer Advisors
Pennsylvania
$12.6M
5
EC
Edenbrook Capital
New York
$45.8M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
$67.4M
2
Victory Capital Management
Victory Capital Management
Texas
$1.38M
3
GIM
Granahan Investment Management
Massachusetts
$30.2M
4
DCM
Driehaus Capital Management
Illinois
$27.5M
5
WJWM
Williams Jones Wealth Management
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
Two Sigma Investments
126
Two Sigma Investments
New York
$611K -$507K -44,450 -45%
Cambridge Investment Research Advisors
127
Cambridge Investment Research Advisors
Iowa
$591K +$252K +22,131 +75%
RCM
128
Radcliffe Capital Management
Pennsylvania
$571K +$571K +50,000 New
SO
129
STRS Ohio
Ohio
$544K +$184K +16,100 +51%
Allspring Global Investments
130
Allspring Global Investments
North Carolina
$513K +$180K +15,762 +54%
Zurich Cantonal Bank
131
Zurich Cantonal Bank
Switzerland
$502K +$135K +11,827 +37%
LCM
132
Legato Capital Management
California
$494K -$54.8K -4,803 -10%
HighTower Advisors
133
HighTower Advisors
Illinois
$482K +$248K +21,720 +106%
ASRS
134
Arizona State Retirement System
Arizona
$460K +$39.8K +3,484 +9%
SEI Investments
135
SEI Investments
Pennsylvania
$454K -$73.1K -6,406 -14%
IMC Chicago
136
IMC Chicago
Illinois
$452K -$420K -36,779 -48%
Wolverine Trading
137
Wolverine Trading
Illinois
$449K -$67.5K -5,823 -13%
Canada Life
138
Canada Life
Manitoba, Canada
$441K +$75.3K +6,594 +21%
State Board of Administration of Florida Retirement System
139
State Board of Administration of Florida Retirement System
Florida
$436K – – –
PM
140
Penbrook Management
New York
$436K -$3.54K -310 -0.8%
P
141
Pitcairn
Pennsylvania
$424K +$52.5K +4,605 +14%
Truist Financial
142
Truist Financial
North Carolina
$407K +$16K +1,398 +4%
FB
143
Fulton Bank
Pennsylvania
$402K -$8.41K -737 -2%
Cetera Investment Advisers
144
Cetera Investment Advisers
Illinois
$386K +$115K +10,089 +43%
Comerica Bank
145
Comerica Bank
Texas
$382K +$5.87K +514 +2%
MCM
146
Massar Capital Management
Connecticut
$367K +$367K +32,144 New
GAM
147
Griffin Asset Management
New York
$351K – – –
Handelsbanken Fonder
148
Handelsbanken Fonder
Sweden
$343K – – –
OC
149
Oppenheimer & Co
New York
$319K +$319K +27,925 New
CWM
150
CIBC World Markets
New York
$319K +$184K +16,144 +137%
4 5
6
7 8