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Aigen Investment Management’s Magnite MGNI Stock Holding History

Aigen Investment Management’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
Q2 		– Sell
-13,535
Closed -$154K – 961
2025
Q1 		$154K Buy
+13,535
New +$216K 0.02% 656
2024
Q3 		– Sell
-10,067
Closed -$134K – 898
2024
Q2 		$134K Buy
+10,067
New +$110K 0.03% 673
2024
Q1 		– Sell
-17,597
Closed -$164K – 893
2023
Q4 		$164K Buy
+17,597
New +$139K 0.03% 690
2021
Q4 		– Sell
-7,864
Closed -$220K – 1123
2021
Q3 		$220K Buy
+7,864
New +$237K 0.04% 402
2020
Q2 		– Sell
-50,709
Closed -$281K – 1108
2020
Q1 		$281K Sell
50,709
-44,347
-47% -$408K 0.04% 613
2019
Q4 		$776K Buy
+95,056
New +$781K 0.13% 231

Other funds holding MGNI

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
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
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
GIM
Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return
EC
Edenbrook Capital Mt. Kisco, New York $321M AUM 79.21% 1-Year Est. Return

Aigen Investment Management's MGNI Position: Q2 2025 in Review

Aigen Investment Management sold out of Magnite (MGNI) in Q2 2025, closing a stake of 13,535 shares — an estimated $154K sold.

Aigen Investment Management first reported a position in MGNI in Q4 2019 and held it in 6 quarters. The position peaked at $776K in Q4 2019. 286 funds tracked by Wall St. Rank hold MGNI as of Q2 2025.

  • Aigen Investment Management reported no remaining Magnite position as of Q2 2025 after selling out during the quarter.
  • Aigen Investment Management sold 13,535 Magnite shares in Q2 2025, an estimated $154K.
  • Aigen Investment Management first reported a position in Magnite in Q4 2019 and held it in 6 quarters.
  • Aigen Investment Management's Magnite position peaked at $776K in Q4 2019.
  • 286 funds tracked by Wall St. Rank held Magnite as of Q2 2025.

Based on Aigen Investment Management's 13F filing for Q2 2025, filed 12 Aug 2025.