Mackenzie Financial
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Mackenzie Financial’s Magnite MGNI Stock Holding History

Mackenzie 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
2025
Q3 		– Sell
-8,590
Closed -$207K – 1784
2025
Q2 		$207K Buy
+8,590
New +$127K ﹤0.01% 1545
2021
Q4 		– Sell
-7,415
Closed -$208K – 1475
2021
Q3 		$208K Buy
+7,415
New +$223K ﹤0.01% 1312

Other funds holding MGNI

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 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
GIM
Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Mackenzie Financial's MGNI Position: Q3 2025 in Review

Mackenzie Financial sold out of Magnite (MGNI) in Q3 2025, closing a stake of 8,590 shares — an estimated $207K sold.

Mackenzie Financial first reported a position in MGNI in Q3 2021 and held it in 2 quarters. The position peaked at $208K in Q3 2021. 316 funds tracked by Wall St. Rank hold MGNI as of Q3 2025.

  • Mackenzie Financial reported no remaining Magnite position as of Q3 2025 after selling out during the quarter.
  • Mackenzie Financial sold 8,590 Magnite shares in Q3 2025, an estimated $207K.
  • Mackenzie Financial first reported a position in Magnite in Q3 2021 and held it in 2 quarters.
  • Mackenzie Financial's Magnite position peaked at $208K in Q3 2021.
  • 316 funds tracked by Wall St. Rank held Magnite as of Q3 2025.

Based on Mackenzie Financial's 13F filing for Q3 2025, filed 13 Nov 2025.