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GSA Capital Partners’s Magnite MGNI Stock Holding History

GSA Capital Partners’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 		– Sell
-13,347
Closed -$159K – 1995
2026
Q1 		$159K Sell
13,347
-3,176
-19% -$42.6K 0.01% 1503
2025
Q4 		$268K Buy
+16,523
New +$274K 0.02% 1232
2025
Q1 		– Sell
-14,341
Closed -$228K – 1913
2024
Q4 		$228K Sell
14,341
-249,763
-95% -$3.66M 0.02% 1350
2024
Q3 		$3.66M Sell
264,104
-25,516
-9% -$348K 0.28% 14
2024
Q2 		$3.85M Sell
289,620
-49,673
-15% -$543K 0.27% 17
2024
Q1 		$3.65M Sell
339,293
-141,437
-29% -$1.41M 0.29% 7
2023
Q4 		$4.49M Buy
+480,730
New +$3.8M 0.38% 6
2023
Q2 		– Sell
-81,356
Closed -$753K – 1775
2023
Q1 		$753K Buy
+81,356
New +$867K 0.07% 477
2022
Q4 		– Sell
-19,412
Closed -$128K – 1720
2022
Q3 		$128K Buy
+19,412
New +$156K 0.02% 1327
2022
Q2 		– Sell
-14,346
Closed -$190K – 1646
2022
Q1 		$190K Sell
14,346
-1,475
-9% -$19.9K 0.03% 1184
2021
Q4 		$277K Buy
+15,821
New +$357K 0.03% 990
2019
Q4 		– Sell
-42,431
Closed -$370K – 1612
2019
Q3 		$370K Buy
+42,431
New +$372K 0.05% 748
2019
Q1 		– Sell
-51,461
Closed -$192K – 1579
2018
Q4 		$192K Sell
51,461
-194,250
-79% -$742K 0.02% 1120
2018
Q3 		$885K Buy
+245,711
New +$869K 0.05% 755

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

GSA Capital Partners's MGNI Position: Q2 2026 in Review

GSA Capital Partners sold out of Magnite (MGNI) in Q2 2026, closing a stake of 13,347 shares — an estimated $159K sold.

GSA Capital Partners first reported a position in MGNI in Q3 2018 and held it in 14 quarters. The position peaked at $4.49M in Q4 2023. 311 funds tracked by Wall St. Rank hold MGNI as of Q2 2026.

  • GSA Capital Partners reported no remaining Magnite position as of Q2 2026 after selling out during the quarter.
  • GSA Capital Partners sold 13,347 Magnite shares in Q2 2026, an estimated $159K.
  • GSA Capital Partners first reported a position in Magnite in Q3 2018 and held it in 14 quarters.
  • GSA Capital Partners's Magnite position peaked at $4.49M in Q4 2023.
  • 311 funds tracked by Wall St. Rank held Magnite as of Q2 2026.

Based on GSA Capital Partners's 13F filing for Q2 2026, filed 6 Aug 2026.