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Principal Securities’s Magnite MGNI Stock Holding History

Principal Securities’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
-62
Closed -$1.5K – 3806
2025
Q2 		$1.5K Sell
62
-113
-65% -$1.67K ﹤0.01% 3231
2025
Q1 		$2.79K Hold
175
– – ﹤0.01% 2950
2024
Q4 		$2.79K Hold
175
– – ﹤0.01% 2945
2024
Q3 		$2.42K Sell
175
-33
-16% -$450 ﹤0.01% 2898
2024
Q2 		$2.76K Buy
208
+176
+550% +$1.92K ﹤0.01% 2814
2024
Q1 		$344 Sell
32
-2
-6% -$20 ﹤0.01% 3190
2023
Q4 		$318 Buy
+34
New +$269 ﹤0.01% 3109

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

Principal Securities's MGNI Position: Q3 2025 in Review

Principal Securities sold out of Magnite (MGNI) in Q3 2025, closing a stake of 62 shares — an estimated $1.5K sold.

Principal Securities first reported a position in MGNI in Q4 2023 and held it in 7 quarters. The position peaked at $2.79K in Q1 2025. 316 funds tracked by Wall St. Rank hold MGNI as of Q3 2025.

  • Principal Securities reported no remaining Magnite position as of Q3 2025 after selling out during the quarter.
  • Principal Securities sold 62 Magnite shares in Q3 2025, an estimated $1.5K.
  • Principal Securities first reported a position in Magnite in Q4 2023 and held it in 7 quarters.
  • Principal Securities's Magnite position peaked at $2.79K in Q1 2025.
  • 316 funds tracked by Wall St. Rank held Magnite as of Q3 2025.

Based on Principal Securities's 13F filing for Q3 2025, filed 12 Nov 2025.