Group One Trading’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 | $505K | Sell |
42,500
-181,600
| -81% | -$2.43M | ﹤0.01% | 3339 |
|
|
2025
Q4 | $3.64M | Buy |
224,100
+49,600
| +28% | +$823K | 0.01% | 1771 |
|
|
2025
Q3 | $3.8M | Sell |
174,500
-50,400
| -22% | -$1.19M | 0.01% | 1739 |
|
|
2025
Q2 | $5.42M | Sell |
224,900
-93,800
| -29% | -$1.38M | 0.01% | 1273 |
|
|
2025
Q1 | $3.64M | Buy |
318,700
+203,600
| +177% | +$3.25M | 0.01% | 1324 |
|
|
2024
Q4 | $1.83M | Buy |
115,100
+49,300
| +75% | +$723K | ﹤0.01% | 1998 |
|
|
2024
Q3 | $911K | Sell |
65,800
-138,100
| -68% | -$1.88M | ﹤0.01% | 2379 |
|
|
2024
Q2 | $2.71M | Buy |
203,900
+57,500
| +39% | +$629K | 0.01% | 1214 |
|
|
2024
Q1 | $1.57M | Sell |
146,400
-231,100
| -61% | -$2.31M | 0.01% | 1688 |
|
|
2023
Q4 | $3.53M | Sell |
377,500
-5,900
| -2% | -$46.6K | 0.01% | 1403 |
|
|
2023
Q3 | $2.89M | Sell |
383,400
-117,000
| -23% | -$1.26M | 0.01% | 1337 |
|
|
2023
Q2 | $6.83M | Buy |
500,400
+290,800
| +139% | +$3.24M | 0.02% | 744 |
|
|
2023
Q1 | $1.94M | Sell |
209,600
-152,800
| -42% | -$1.63M | 0.01% | 1556 |
|
|
2022
Q4 | $3.84M | Buy |
362,400
+91,500
| +34% | +$835K | 0.01% | 1327 |
|
|
2022
Q3 | $1.78M | Sell |
270,900
-107,000
| -28% | -$861K | ﹤0.01% | 2017 |
|
|
2022
Q2 | $3.36M | Buy |
377,900
+170,600
| +82% | +$1.83M | 0.01% | 1597 |
|
|
2022
Q1 | $2.74M | Sell |
207,300
-174,500
| -46% | -$2.35M | ﹤0.01% | 2085 |
|
|
2021
Q4 | $6.68M | Buy |
381,800
+161,100
| +73% | +$3.63M | 0.01% | 1439 |
|
|
2021
Q3 | $6.18M | Sell |
220,700
-382,600
| -63% | -$11.5M | 0.01% | 1481 |
|
|
2021
Q2 | $20.4M | Sell |
603,300
-16,300
| -3% | -$552K | 0.02% | 617 |
|
|
2021
Q1 | $25.8M | Sell |
619,600
-23,300
| -4% | -$1.01M | 0.04% | 425 |
|
|
2020
Q4 | $19.7M | Buy |
642,900
+537,400
| +509% | +$8.13M | 0.03% | 453 |
|
|
2020
Q3 | $733K | Buy |
105,500
+33,200
| +46% | +$222K | ﹤0.01% | 2490 |
|
|
2020
Q2 | $482K | Buy |
72,300
+33,500
| +86% | +$209K | ﹤0.01% | 2672 |
|
|
2020
Q1 | $215K | Sell |
38,800
-40,300
| -51% | -$370K | ﹤0.01% | 2691 |
|
|
2019
Q4 | $645K | Buy |
79,100
+54,100
| +216% | +$445K | ﹤0.01% | 2231 |
|
|
2019
Q3 | $218K | Buy |
25,000
+21,100
| +541% | +$185K | ﹤0.01% | 3020 |
|
|
2019
Q2 | $25K | Buy |
+3,900
| New | +$24K | ﹤0.01% | 4075 |
|
|
2017
Q3 | – | Sell |
-1,100
| Closed | -$6K | – | 5025 |
|
|
2017
Q2 | $6K | Buy |
+1,100
| New | +$6.04K | ﹤0.01% | 4364 |
|
|
2016
Q3 | – | Sell |
-10,100
| Closed | -$138K | – | 4749 |
|
|
2016
Q2 | $138K | Sell |
10,100
-8,100
| -45% | -$130K | ﹤0.01% | 2651 |
|
|
2016
Q1 | $333K | Buy |
+18,200
| New | +$279K | ﹤0.01% | 1983 |
|
|
2015
Q4 | – | Sell |
-8,200
| Closed | -$119K | – | 4933 |
|
|
2015
Q3 | $119K | Buy |
8,200
+7,300
| +811% | +$111K | ﹤0.01% | 2921 |
|
|
2015
Q2 | $13K | Buy |
+900
| New | +$15.5K | ﹤0.01% | 4208 |
|
|
2015
Q1 | – | Sell |
-1,400
| Closed | -$23K | – | 5006 |
|
|
2014
Q4 | $23K | Buy |
+1,400
| New | +$18.1K | ﹤0.01% | 3873 |
|
Other funds holding MGNI
VPM
VCM
N
Group One Trading's MGNI Position: Q1 2026 in Review
Group One Trading increased its Magnite (MGNI) stake by 368% in Q1 2026, buying an estimated $263K and bringing the position to 24,999 shares worth $297K. The position accounts for ﹤0.01% of the portfolio, ranked #3808.
Group One Trading first reported a position in MGNI in Q4 2014 and has held it in 32 quarters since. The position peaked at $8.64M in Q4 2020. 296 funds tracked by Wall St. Rank hold MGNI as of Q1 2026.
- Group One Trading held 24,999 shares of Magnite worth $297K as of Q1 2026.
- Group One Trading bought 19,652 Magnite shares in Q1 2026, an estimated $263K.
- Magnite made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #3808 holding.
- Group One Trading first reported a position in Magnite in Q4 2014 and has held it in 32 quarters since.
- Group One Trading's Magnite position peaked at $8.64M in Q4 2020.
- 296 funds tracked by Wall St. Rank held Magnite as of Q1 2026.
Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.