UBS Group
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UBS Group’s Magnite MGNI Stock Holding History

UBS Group’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
2026
Q1 		– Sell
-159,000
Closed -$2.58M – 10910
2025
Q4 		$2.58M Hold
159,000
– – ﹤0.01% 4716
2025
Q3 		$3.46M Hold
159,000
– – ﹤0.01% 4419
2025
Q2 		$3.84M Sell
159,000
-35,000
-18% -$516K ﹤0.01% 4147
2025
Q1 		$2.21M Buy
+194,000
New +$3.09M ﹤0.01% 4615

Other funds holding MGNI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

UBS Group's MGNI Position: Q2 2026 in Review

UBS Group increased its Magnite (MGNI) stake by 66% in Q2 2026, buying an estimated $4.24M and bringing the position to 746,350 shares worth $14.2M. The position accounts for ﹤0.01% of the portfolio, ranked #3058.

UBS Group first reported a position in MGNI in Q4 2014 and has held it in 47 quarters since. The position peaked at $41.8M in Q2 2025. 311 funds tracked by Wall St. Rank hold MGNI as of Q2 2026.

  • UBS Group held 746,350 shares of Magnite worth $14.2M as of Q2 2026.
  • UBS Group bought 296,001 Magnite shares in Q2 2026, an estimated $4.24M.
  • Magnite made up ﹤0.01% of UBS Group's portfolio in Q2 2026, its #3058 holding.
  • UBS Group first reported a position in Magnite in Q4 2014 and has held it in 47 quarters since.
  • UBS Group's Magnite position peaked at $41.8M in Q2 2025.
  • 311 funds tracked by Wall St. Rank held Magnite as of Q2 2026.

Based on UBS Group's 13F filing for Q2 2026, filed 13 Aug 2026.