JGC
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J. Goldman & Co’s Magnite MGNI Stock Holding History

J. Goldman & Co’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
Q1 		– Sell
-782,837
Closed -$12.7M – 795
2025
Q4 		$12.7M Sell
782,837
-245,861
-24% -$4.08M 0.33% 86
2025
Q3 		$22.4M Buy
1,028,698
+425,015
+70% +$10M 0.56% 38
2025
Q2 		$14.6M Buy
+603,683
New +$8.89M 0.35% 97
2024
Q4 		– Sell
-673,729
Closed -$9.33M – 564
2024
Q3 		$9.33M Buy
+673,729
New +$9.18M 0.26% 111
2023
Q1 		– Sell
-17,598
Closed -$186K – 438
2022
Q4 		$186K Buy
+17,598
New +$161K 0.01% 316
2017
Q3 		– Sell
-150,000
Closed -$771K – 370
2017
Q2 		$771K Buy
+150,000
New +$824K 0.04% 226
2015
Q3 		– Sell
-164,900
Closed -$2.47M – 281
2015
Q2 		$2.47M Buy
+164,900
New +$2.84M 0.15% 152
2015
Q1 		– Sell
-70,000
Closed -$1.13M – 294
2014
Q4 		$1.13M Sell
70,000
-53,033
-43% -$684K 0.13% 142
2014
Q3 		$1.44M Buy
+123,033
New +$1.35M 0.09% 203

Other funds holding MGNI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 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

J. Goldman & Co's MGNI Position: Q1 2026 in Review

J. Goldman & Co sold out of Magnite (MGNI) in Q1 2026, closing a stake of 782,837 shares — an estimated $12.7M sold.

J. Goldman & Co first reported a position in MGNI in Q3 2014 and held it in 9 quarters. The position peaked at $22.4M in Q3 2025. 297 funds tracked by Wall St. Rank hold MGNI as of Q1 2026.

  • J. Goldman & Co reported no remaining Magnite position as of Q1 2026 after selling out during the quarter.
  • J. Goldman & Co sold 782,837 Magnite shares in Q1 2026, an estimated $12.7M.
  • J. Goldman & Co first reported a position in Magnite in Q3 2014 and held it in 9 quarters.
  • J. Goldman & Co's Magnite position peaked at $22.4M in Q3 2025.
  • 297 funds tracked by Wall St. Rank held Magnite as of Q1 2026.

Based on J. Goldman & Co's 13F filing for Q1 2026, filed 15 May 2026.