ProShare Advisors
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ProShare Advisors’s Magnite MGNI Stock Holding History

ProShare 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
2026
Q3 		$458K Sell
18,132
-777
-4% -$17.4K ﹤0.01% 1081
2026
Q2 		$359K Sell
18,909
-1,719
-8% -$24.6K ﹤0.01% 1309
2026
Q1 		$245K Sell
20,628
-4,955
-19% -$66.4K ﹤0.01% 1453
2025
Q4 		$415K Buy
25,583
+1,637
+7% +$27.2K ﹤0.01% 1245
2025
Q3 		$522K Sell
23,946
-4,772
-17% -$113K ﹤0.01% 1087
2025
Q2 		$693K Buy
28,718
+1,482
+5% +$21.8K ﹤0.01% 949
2025
Q1 		$311K Sell
27,236
-8,196
-23% -$131K ﹤0.01% 1388
2024
Q4 		$564K Buy
35,432
+11,656
+49% +$171K ﹤0.01% 1199
2024
Q3 		$329K Buy
23,776
+5,641
+31% +$76.9K ﹤0.01% 1400
2024
Q2 		$241K Sell
18,135
-6,190
-25% -$67.7K ﹤0.01% 1430
2024
Q1 		$261K Buy
24,325
+1,914
+9% +$19.1K ﹤0.01% 1518
2023
Q4 		$209K Buy
22,411
+5,009
+29% +$39.6K ﹤0.01% 1611
2023
Q3 		$131K Sell
17,402
-21
-0.1% -$226 ﹤0.01% 1579
2023
Q2 		$238K Buy
17,423
+1,845
+12% +$20.5K ﹤0.01% 1431
2023
Q1 		$144K Sell
15,578
-1,451
-9% -$15.5K ﹤0.01% 1516
2022
Q4 		$180K Buy
17,029
+2,601
+18% +$23.7K ﹤0.01% 1520
2022
Q3 		$94K Sell
14,428
-275
-2% -$2.21K ﹤0.01% 1570
2022
Q2 		$131K Sell
14,703
-9,648
-40% -$103K ﹤0.01% 1565
2022
Q1 		$322K Sell
24,351
-4,000
-14% -$53.9K ﹤0.01% 1577
2021
Q4 		$496K Buy
28,351
+11,707
+70% +$264K ﹤0.01% 1448
2021
Q3 		$466K Sell
16,644
-1,201,005
-99% -$36.1M ﹤0.01% 1245
2021
Q2 		$41.2M Sell
1,217,649
-47,706
-4% -$1.62M 0.12% 162
2021
Q1 		$52.7M Sell
1,265,355
-417,243
-25% -$18.1M 0.17% 136
2020
Q4 		$51.7M Buy
1,682,598
+592,933
+54% +$8.97M 0.19% 125
2020
Q3 		$7.57M Buy
1,089,665
+1,075,657
+7,679% +$7.19M 0.04% 326
2020
Q2 		$93K Buy
+14,008
New +$87.5K ﹤0.01% 1575

Other funds holding MGNI

Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Blue Grotto Capital
Blue Grotto Capital Atlanta, Georgia $1.46B AUM 33.83% 1-Year Est. Return
Royce & Associates
Royce & Associates New York $11B AUM 39.4% 1-Year Est. Return
Maestria Partners
Maestria Partners Atlanta, Georgia $298M AUM 13.91% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Picton Mahoney Asset Management
Picton Mahoney Asset Management Toronto, Ontario, Canada $14.8B AUM 38.11% 1-Year Est. Return
Kopion Asset Management
Kopion Asset Management Mckinney, Texas $156M AUM 4.73% 1-Year Est. Return
Luther King Capital Management (LKCM)
Luther King Capital Management (LKCM) Fort Worth, Texas $24.3B AUM 19.37% 1-Year Est. Return
Bank of Montreal
Bank of Montreal Toronto, Ontario, Canada $313B AUM 26.62% 1-Year Est. Return

ProShare Advisors's MGNI Position: Q3 2026 in Review

ProShare Advisors reduced its Magnite (MGNI) stake by 4.1% in Q3 2026, selling an estimated $17.4K and leaving 18,132 shares worth $458K. The position accounts for ﹤0.01% of the portfolio, ranked #1081.

ProShare Advisors first reported a position in MGNI in Q2 2020 and has held it in 26 quarters since. The position peaked at $52.7M in Q1 2021. 147 funds tracked by Wall St. Rank hold MGNI as of Q3 2026.

  • ProShare Advisors held 18,132 shares of Magnite worth $458K as of Q3 2026.
  • ProShare Advisors sold 777 Magnite shares in Q3 2026, an estimated $17.4K.
  • Magnite made up ﹤0.01% of ProShare Advisors's portfolio in Q3 2026, its #1081 holding.
  • ProShare Advisors first reported a position in Magnite in Q2 2020 and has held it in 26 quarters since.
  • ProShare Advisors's Magnite position peaked at $52.7M in Q1 2021.
  • 147 funds tracked by Wall St. Rank held Magnite as of Q3 2026.

Based on ProShare Advisors's 13F filing for Q3 2026, filed 29 Oct 2026.