Wellington Management Group’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
$109M Buy
9,191,077
+561,839
+7% +$7.53M 0.02% 530
2025
Q4
$140M Buy
8,629,238
+3,484,689
+68% +$57.8M 0.02% 473
2025
Q3
$112M Sell
5,144,549
-303,288
-6% -$7.16M 0.02% 532
2025
Q2
$131M Sell
5,447,837
-455,434
-8% -$6.71M 0.02% 460
2025
Q1
$67.4M Sell
5,903,271
-1,126,740
-16% -$18M 0.01% 600
2024
Q4
$112M Buy
7,030,011
+450,341
+7% +$6.61M 0.02% 504
2024
Q3
$91.1M Buy
6,579,670
+3,659,759
+125% +$49.9M 0.02% 559
2024
Q2
$38.8M Buy
2,919,911
+114,087
+4% +$1.25M 0.01% 763
2024
Q1
$30.2M Sell
2,805,824
-133,717
-5% -$1.34M 0.01% 850
2023
Q4
$27.5M Buy
2,939,541
+52,129
+2% +$412K 0.01% 873
2023
Q3
$21.8M Buy
2,887,412
+795,145
+38% +$8.57M ﹤0.01% 915
2023
Q2
$28.6M Buy
2,092,267
+487,670
+30% +$5.43M 0.01% 856
2023
Q1
$14.9M Buy
1,604,597
+120,697
+8% +$1.29M ﹤0.01% 1004
2022
Q4
$15.7M Buy
1,483,900
+71,597
+5% +$654K ﹤0.01% 975
2022
Q3
$9.28M Buy
+1,412,303
New +$11.4M ﹤0.01% 1121
2021
Q3
Sell
-12,365
Closed -$418K 2221
2021
Q2
$418K Buy
+12,365
New +$419K ﹤0.01% 1954
2020
Q4
Sell
-4,326,109
Closed -$30M 1976
2020
Q3
$30M Buy
4,326,109
+805,740
+23% +$5.38M 0.01% 850
2020
Q2
$23.5M Buy
3,520,369
+1,039,494
+42% +$6.49M 0.01% 890
2020
Q1
$13.8M Buy
2,480,875
+882,840
+55% +$8.11M ﹤0.01% 965
2019
Q4
$13M Buy
1,598,035
+364,781
+30% +$3M ﹤0.01% 1098
2019
Q3
$10.7M Sell
1,233,254
-341,300
-22% -$2.99M ﹤0.01% 1142
2019
Q2
$10M Buy
+1,574,554
New +$9.67M ﹤0.01% 1208

Other funds holding MGNI