Vanguard Portfolio Management
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Vanguard Portfolio Management’s Magnite MGNI Stock Holding History

Vanguard Portfolio Management’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
Q2 		$156M Buy
8,197,286
+471,081
+6% +$6.75M 0.01% 1335
2026
Q1 		$91.8M Buy
+7,726,205
New +$104M ﹤0.01% 1464

Other funds holding MGNI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management's MGNI Position: Q2 2026 in Review

Vanguard Portfolio Management increased its Magnite (MGNI) stake by 6.1% in Q2 2026, buying an estimated $6.75M and bringing the position to 8,197,286 shares worth $156M. The position accounts for 0.01% of the portfolio, ranked #1335.

Vanguard Portfolio Management first reported a position in MGNI in Q1 2026 and has held it in 2 quarters since. 308 funds tracked by Wall St. Rank hold MGNI as of Q2 2026.

  • Vanguard Portfolio Management held 8,197,286 shares of Magnite worth $156M as of Q2 2026.
  • Vanguard Portfolio Management bought 471,081 Magnite shares in Q2 2026, an estimated $6.75M.
  • Magnite made up 0.01% of Vanguard Portfolio Management's portfolio in Q2 2026, its #1335 holding.
  • Vanguard Portfolio Management first reported a position in Magnite in Q1 2026 and has held it in 2 quarters since.
  • 308 funds tracked by Wall St. Rank held Magnite as of Q2 2026.

Based on Vanguard Portfolio Management's 13F filing for Q2 2026, filed 13 Aug 2026.