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

Top Sellers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$67.4M
2
Victory Capital Management
2
Victory Capital Management
Texas
$1.38M
3
GIM
3
Granahan Investment Management
Massachusetts
$30.2M
4
DCM
4
Driehaus Capital Management
Illinois
$27.5M
5
WJWM
5
Williams Jones Wealth Management
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
AACP
51
Advantage Alpha Capital Partners
California
$4.87M -$396K -34,745 -8%
UBS AM
52
UBS AM
Illinois
$4.62M +$412K +36,097 +10%
Susquehanna International Group
53
Susquehanna International Group
Pennsylvania
$4.58M -$1.65M -144,928 -27%
AC
54
Armistice Capital
New York
$4.44M +$4.44M +389,000 New
Raymond James Financial
55
Raymond James Financial
Florida
$4.13M -$2.1M -183,788 -34%
SST
56
S Squared Technology
New York
$4.01M -$2.4M -210,000 -37%
FCM
57
Frontier Capital Management
Massachusetts
$3.94M -$3.44M -301,309 -47%
1CM
58
1492 Capital Management
Wisconsin
$3.72M -$22.5K -1,973 -0.6%
First Trust Advisors
59
First Trust Advisors
Illinois
$3.7M +$530K +46,492 +17%
CP
60
CenterBook Partners
Connecticut
$3.62M -$3.52M -308,761 -49%
Swiss National Bank
61
Swiss National Bank
Switzerland
$3.11M +$259K +22,700 +9%
Connor, Clark & Lunn Investment Management (CC&L)
62
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$3.07M -$419K -36,750 -12%
Parallax Volatility Advisers
63
Parallax Volatility Advisers
California
$3.07M +$582K +51,017 +23%
Jane Street
64
Jane Street
New York
$3.04M +$2.91M +255,128 +2,198%
Bank of Montreal
65
Bank of Montreal
Ontario, Canada
$2.75M +$886K +77,640 +48%
EAM
66
EFG Asset Management
Oregon
$2.7M +$442K +38,735 +20%
State of Wisconsin Investment Board
67
State of Wisconsin Investment Board
Wisconsin
$2.67M +$1.85M +161,823 +225%
Envestnet Asset Management
68
Envestnet Asset Management
Illinois
$2.52M +$361K +31,604 +17%
VOYA Investment Management
69
VOYA Investment Management
Georgia
$2.4M -$1.07M -94,165 -31%
Invesco
70
Invesco
Georgia
$2.38M -$720K -63,102 -23%
OAM
71
Oberweis Asset Management
Illinois
$2.35M – – –
RhumbLine Advisers
72
RhumbLine Advisers
Massachusetts
$2.2M +$93.2K +8,171 +4%
SFI
73
Susquehanna Fundamental Investments
Pennsylvania
$2.06M +$662K +58,019 +47%
DFCM
74
Dark Forest Capital Management
Puerto Rico
$1.98M +$1.98M +173,864 New
Barclays
75
Barclays
United Kingdom
$1.96M -$788K -69,081 -29%
1 2
3
4 5