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Dmitry Balyasny’s Magnite MGNI Stock Holding History

Dmitry Balyasny’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 		– Sell
-12,700
Closed -$277K – 3374
2025
Q3 		$277K Sell
12,700
-4,200
-25% -$99.2K ﹤0.01% 2603
2025
Q2 		$408K Buy
+16,900
New +$249K ﹤0.01% 2372
2023
Q2 		– Sell
-250,000
Closed -$2.31M – 2591
2023
Q1 		$2.31M Buy
+250,000
New +$2.66M 0.01% 1405

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

Dmitry Balyasny's MGNI Position: Q2 2026 in Review

Dmitry Balyasny reduced its Magnite (MGNI) stake by 56% in Q2 2026, selling an estimated $11.9M and leaving 666,554 shares worth $12.7M. The position accounts for 0.02% of the portfolio, ranked #951.

Dmitry Balyasny first reported a position in MGNI in Q4 2015 and has held it in 14 quarters since. The position peaked at $17.8M in Q1 2026. 309 funds tracked by Wall St. Rank hold MGNI as of Q2 2026.

  • Dmitry Balyasny held 666,554 shares of Magnite worth $12.7M as of Q2 2026.
  • Dmitry Balyasny sold 833,889 Magnite shares in Q2 2026, an estimated $11.9M.
  • Magnite made up 0.02% of Dmitry Balyasny's portfolio in Q2 2026, its #951 holding.
  • Dmitry Balyasny first reported a position in Magnite in Q4 2015 and has held it in 14 quarters since.
  • Dmitry Balyasny's Magnite position peaked at $17.8M in Q1 2026.
  • 309 funds tracked by Wall St. Rank held Magnite as of Q2 2026.

Based on Balyasny Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.