UOC
MGNI icon

UBS O'Connor’s Magnite MGNI Stock Holding History

UBS O'Connor’s Portfolio MGNI Stock Details MGNI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		$800 Sell
32,000
-200,000
-86% -$3.32M ﹤0.01% 235
2025
Q3 		$454K Sell
232,000
-200,000
-46% -$4.72M 0.01% 206
2025
Q2 		$1.93M Buy
432,000
+325,000
+304% +$4.79M 0.05% 164
2025
Q1 		$48.1K Hold
107,000
– – ﹤0.01% 286
2024
Q4 		$241K Hold
107,000
– – 0.01% 318
2024
Q3 		$198K Buy
+107,000
New +$1.46M ﹤0.01% 389

Other funds holding MGNI

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return