Jane Street’s Magnite MGNI Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$19.8M Buy
1,668,160
+1,287,907
+339% +$17.3M 0.02% 1791
2025
Q4
$6.17M Sell
380,253
-710,370
-65% -$11.8M 0.01% 2930
2025
Q3
$23.8M Buy
1,090,623
+806,333
+284% +$19M 0.03% 1492
2025
Q2
$6.86M Buy
284,290
+17,554
+7% +$259K 0.01% 2597
2025
Q1
$3.04M Buy
266,736
+255,128
+2,198% +$4.07M 0.01% 3694
2024
Q4
$185K Sell
11,608
-836,596
-99% -$12.3M ﹤0.01% 8460
2024
Q3
$11.7M Buy
848,204
+588,114
+226% +$8.01M 0.02% 1747
2024
Q2
$3.46M Buy
260,090
+200,662
+338% +$2.19M ﹤0.01% 3564
2024
Q1
$639K Sell
59,428
-137,809
-70% -$1.38M ﹤0.01% 6227
2023
Q4
$1.84M Buy
197,237
+53,104
+37% +$420K ﹤0.01% 4474
2023
Q3
$1.09M Buy
144,133
+552
+0.4% +$5.95K ﹤0.01% 5054
2023
Q2
$1.96M Buy
143,581
+90,550
+171% +$1.01M ﹤0.01% 4196
2023
Q1
$491K Sell
53,031
-47,819
-47% -$509K ﹤0.01% 6352
2022
Q4
$1.07M Buy
+100,850
New +$921K ﹤0.01% 4894
2022
Q3
Sell
-66,793
Closed -$537K 10189
2022
Q2
$593K Buy
66,793
+22,530
+51% +$241K ﹤0.01% 6435
2022
Q1
$585K Sell
44,263
-108,467
-71% -$1.46M ﹤0.01% 7174
2021
Q4
$2.67M Sell
152,730
-4,610
-3% -$104K 0.01% 3909
2021
Q3
$4.41M Buy
157,340
+19,327
+14% +$582K 0.01% 2944
2021
Q2
$4.67M Sell
138,013
-146,945
-52% -$4.98M 0.01% 2762
2021
Q1
$11.9M Sell
284,958
-22,754
-7% -$986K 0.03% 1395
2020
Q4
$9.45M Buy
307,712
+274,225
+819% +$4.15M 0.03% 1462
2020
Q3
$233K Buy
+33,487
New +$224K ﹤0.01% 6241
2020
Q1
Sell
-13,197
Closed -$108K 5745
2019
Q4
$108K Buy
+13,197
New +$108K ﹤0.01% 4843
2019
Q2
Sell
-20,017
Closed -$122K 5525
2019
Q1
$122K Buy
+20,017
New +$103K ﹤0.01% 4745
2018
Q3
Sell
-92,460
Closed -$264K 5515
2018
Q2
$264K Buy
+92,460
New +$220K ﹤0.01% 4268
2017
Q3
Sell
-11,975
Closed -$62K 4883
2017
Q2
$62K Buy
11,975
+1,138
+11% +$6.25K ﹤0.01% 4215
2017
Q1
$64K Buy
+10,837
New +$84.4K ﹤0.01% 4003
2016
Q2
Sell
-13,059
Closed -$239K 4431
2016
Q1
$239K Buy
+13,059
New +$200K ﹤0.01% 3488

Other funds holding MGNI