EI
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EAM Investors’s Magnite MGNI Stock Holding History

EAM Investors’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
-241,943
Closed -$5.18M – 321
2025
Q3 		$5.18M Buy
241,943
+24,465
+11% +$578K 0.59% 53
2025
Q2 		$5.25M Buy
+217,478
New +$3.2M 0.79% 31
2025
Q1 		– Sell
-198,276
Closed -$3.16M – 313
2024
Q4 		$3.16M Buy
+198,276
New +$2.91M 0.45% 116
2023
Q1 		– Sell
-194,204
Closed -$2.06M – 318
2022
Q4 		$2.06M Buy
+194,204
New +$1.77M 0.43% 93
2021
Q2 		– Sell
-75,662
Closed -$3.15M – 382
2021
Q1 		$3.15M Sell
75,662
-100,395
-57% -$4.35M 0.47% 39
2020
Q4 		$5.41M Buy
+176,057
New +$2.66M 0.89% 7
2020
Q2 		– Sell
-387,046
Closed -$2.15M – 294
2020
Q1 		$2.15M Buy
+387,046
New +$3.56M 0.67% 47
2019
Q4 		– Sell
-528,037
Closed -$4.6M – 291
2019
Q3 		$4.6M Buy
528,037
+2,093
+0.4% +$18.3K 1.22% 2
2019
Q2 		$3.35M Sell
525,944
-145,171
-22% -$892K 0.82% 16
2019
Q1 		$4.08M Buy
671,115
+130,374
+24% +$671K 1% 6
2018
Q4 		$2.02M Buy
540,741
+340,689
+170% +$1.3M 0.55% 49
2018
Q3 		$720K Buy
+200,052
New +$707K 0.11% 271
2016
Q2 		– Sell
-198,792
Closed -$3.63M – 339
2016
Q1 		$3.63M Buy
+198,792
New +$3.04M 0.57% 25
2015
Q4 		– Sell
-143,377
Closed -$2.08M – 340
2015
Q3 		$2.08M Buy
143,377
+90,215
+170% +$1.38M 0.33% 139
2015
Q2 		$795K Sell
53,162
-19,246
-27% -$332K 0.09% 308
2015
Q1 		$1.3M Hold
72,408
– – 0.15% 265
2014
Q4 		$1.17M Buy
+72,408
New +$934K 0.16% 261

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 $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
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 $95.5B AUM 28.4% 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

EAM Investors's MGNI Position: Q4 2025 in Review

EAM Investors sold out of Magnite (MGNI) in Q4 2025, closing a stake of 241,943 shares — an estimated $5.18M sold.

EAM Investors first reported a position in MGNI in Q4 2014 and held it in 17 quarters. The position peaked at $5.41M in Q4 2020. 304 funds tracked by Wall St. Rank hold MGNI as of Q4 2025.

  • EAM Investors reported no remaining Magnite position as of Q4 2025 after selling out during the quarter.
  • EAM Investors sold 241,943 Magnite shares in Q4 2025, an estimated $5.18M.
  • EAM Investors first reported a position in Magnite in Q4 2014 and held it in 17 quarters.
  • EAM Investors's Magnite position peaked at $5.41M in Q4 2020.
  • 304 funds tracked by Wall St. Rank held Magnite as of Q4 2025.

Based on EAM Investors's 13F filing for Q4 2025, filed 12 Feb 2026.