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Rossby Financial’s Magnite MGNI Stock Holding History

Rossby Financial’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 		$9.49K Hold
500
– – ﹤0.01% 1192
2026
Q1 		$5.89K Hold
500
– – ﹤0.01% 1446
2025
Q4 		$8.12K Hold
500
– – ﹤0.01% 992
2025
Q3 		$10.2K Buy
+500
New +$11.8K ﹤0.01% 851

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

Rossby Financial's MGNI Position: Q2 2026 in Review

Rossby Financial held its Magnite (MGNI) position steady in Q2 2026 at 500 shares worth $9.49K. The position accounts for ﹤0.01% of the portfolio, ranked #1192.

Rossby Financial first reported a position in MGNI in Q3 2025 and has held it in 4 quarters since. The position peaked at $10.2K in Q3 2025. 311 funds tracked by Wall St. Rank hold MGNI as of Q2 2026.

  • Rossby Financial held 500 shares of Magnite worth $9.49K as of Q2 2026.
  • Rossby Financial left its Magnite share count unchanged in Q2 2026.
  • Magnite made up ﹤0.01% of Rossby Financial's portfolio in Q2 2026, its #1192 holding.
  • Rossby Financial first reported a position in Magnite in Q3 2025 and has held it in 4 quarters since.
  • Rossby Financial's Magnite position peaked at $10.2K in Q3 2025.
  • 311 funds tracked by Wall St. Rank held Magnite as of Q2 2026.

Based on Rossby Financial's 13F filing for Q2 2026, filed 4 Aug 2026.