HighTower Advisors
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HighTower Advisors’s Magnite MGNI Stock Holding History

HighTower Advisors’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
-14,780
Closed -$322K – 3847
2025
Q3 		$322K Buy
14,780
+953
+7% +$22.5K ﹤0.01% 2991
2025
Q2 		$334K Sell
13,827
-28,444
-67% -$419K ﹤0.01% 2834
2025
Q1 		$482K Buy
42,271
+21,720
+106% +$346K ﹤0.01% 2487
2024
Q4 		$327K Buy
20,551
+3,229
+19% +$47.4K ﹤0.01% 2829
2024
Q3 		$240K Sell
17,322
-70,365
-80% -$959K ﹤0.01% 2990
2024
Q2 		$1.17M Sell
87,687
-2,104
-2% -$23K ﹤0.01% 1756
2024
Q1 		$965K Sell
89,791
-7,595
-8% -$75.9K ﹤0.01% 1824
2023
Q4 		$909K Sell
97,386
-9,028
-8% -$71.3K ﹤0.01% 1893
2023
Q3 		$795K Buy
106,414
+4,140
+4% +$44.6K ﹤0.01% 1924
2023
Q2 		$1.4M Sell
102,274
-8,425
-8% -$93.8K ﹤0.01% 1562
2023
Q1 		$1.02M Sell
110,699
-681
-0.6% -$7.26K ﹤0.01% 1657
2022
Q4 		$1.18M Sell
111,380
-4,484
-4% -$40.9K ﹤0.01% 1589
2022
Q3 		$760K Buy
115,864
+1,429
+1% +$11.5K ﹤0.01% 1771
2022
Q2 		$1.02M Buy
114,435
+3,175
+3% +$34K ﹤0.01% 1620
2022
Q1 		$1.47M Buy
111,260
+8,892
+9% +$120K ﹤0.01% 1544
2021
Q4 		$1.79M Sell
102,368
-826
-0.8% -$18.6K ﹤0.01% 1422
2021
Q3 		$2.89M Buy
103,194
+2,911
+3% +$87.6K 0.01% 1069
2021
Q2 		$3.39M Buy
100,283
+2,000
+2% +$67.8K 0.01% 956
2021
Q1 		$4.09M Sell
98,283
-7,606
-7% -$329K 0.01% 818
2020
Q4 		$3.25M Sell
105,889
-9,037
-8% -$137K 0.01% 725
2020
Q3 		$798K Buy
+114,926
New +$768K ﹤0.01% 1334

Other funds holding MGNI

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 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 $113B AUM 38.87% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

HighTower Advisors's MGNI Position: Q4 2025 in Review

HighTower Advisors sold out of Magnite (MGNI) in Q4 2025, closing a stake of 14,780 shares — an estimated $322K sold.

HighTower Advisors first reported a position in MGNI in Q3 2020 and held it in 21 quarters. The position peaked at $4.09M in Q1 2021. 304 funds tracked by Wall St. Rank hold MGNI as of Q4 2025.

  • HighTower Advisors reported no remaining Magnite position as of Q4 2025 after selling out during the quarter.
  • HighTower Advisors sold 14,780 Magnite shares in Q4 2025, an estimated $322K.
  • HighTower Advisors first reported a position in Magnite in Q3 2020 and held it in 21 quarters.
  • HighTower Advisors's Magnite position peaked at $4.09M in Q1 2021.
  • 304 funds tracked by Wall St. Rank held Magnite as of Q4 2025.

Based on HighTower Advisors's 13F filing for Q4 2025, filed 6 Feb 2026.