Cubist Systematic Strategies’s Magnite MGNI Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q3 | $1.55M | Buy |
+71,251
| New | +$1.68M | 0.01% | 1716 |
|
|
2024
Q2 | – | Sell |
-49,756
| Closed | -$535K | – | 3617 |
|
|
2024
Q1 | $535K | Buy |
+49,756
| New | +$497K | ﹤0.01% | 2566 |
|
|
2023
Q1 | – | Sell |
-144,685
| Closed | -$1.53M | – | 4221 |
|
|
2022
Q4 | $1.53M | Sell |
144,685
-326,345
| -69% | -$2.98M | 0.01% | 2078 |
|
|
2022
Q3 | $3.1M | Buy |
471,030
+216,872
| +85% | +$1.75M | 0.02% | 1563 |
|
|
2022
Q2 | $2.26M | Buy |
254,158
+21,196
| +9% | +$227K | 0.01% | 1742 |
|
|
2022
Q1 | $3.08M | Buy |
232,962
+79,305
| +52% | +$1.07M | 0.03% | 1117 |
|
|
2021
Q4 | $2.69M | Buy |
153,657
+95,810
| +166% | +$2.16M | 0.03% | 1117 |
|
|
2021
Q3 | $1.62M | Sell |
57,847
-110,527
| -66% | -$3.33M | 0.02% | 1178 |
|
|
2021
Q2 | $5.7M | Buy |
168,374
+144,592
| +608% | +$4.9M | 0.06% | 460 |
|
|
2021
Q1 | $990K | Sell |
23,782
-10,037
| -30% | -$435K | 0.01% | 1547 |
|
|
2020
Q4 | $1.04M | Sell |
33,819
-36,491
| -52% | -$552K | 0.01% | 1360 |
|
|
2020
Q3 | $488K | Buy |
70,310
+21,034
| +43% | +$141K | 0.01% | 1763 |
|
|
2020
Q2 | $329K | Sell |
49,276
-20,694
| -30% | -$129K | 0.01% | 1812 |
|
|
2020
Q1 | $388K | Buy |
69,970
+59,761
| +585% | +$549K | 0.01% | 1386 |
|
|
2019
Q4 | $83K | Sell |
10,209
-58,643
| -85% | -$482K | ﹤0.01% | 2223 |
|
|
2019
Q3 | $600K | Buy |
68,852
+54,452
| +378% | +$477K | 0.01% | 1205 |
|
|
2019
Q2 | $92K | Sell |
14,400
-89,001
| -86% | -$547K | ﹤0.01% | 2246 |
|
|
2019
Q1 | $629K | Buy |
103,401
+75,683
| +273% | +$390K | 0.02% | 1040 |
|
|
2018
Q4 | $103K | Sell |
27,718
-7,664
| -22% | -$29.3K | ﹤0.01% | 1756 |
|
|
2018
Q3 | $127K | Sell |
35,382
-28,664
| -45% | -$101K | 0.01% | 1557 |
|
|
2018
Q2 | $183K | Buy |
64,046
+40,374
| +171% | +$96.1K | 0.01% | 1381 |
|
|
2018
Q1 | $43K | Sell |
23,672
-2,152
| -8% | -$4.08K | ﹤0.01% | 1711 |
|
|
2017
Q4 | $48K | Sell |
25,824
-13,882
| -35% | -$34.7K | ﹤0.01% | 1782 |
|
|
2017
Q3 | $154K | Buy |
39,706
+29,985
| +308% | +$128K | 0.01% | 1535 |
|
|
2017
Q2 | $50K | Sell |
9,721
-8,798
| -48% | -$48.4K | ﹤0.01% | 1547 |
|
|
2017
Q1 | $109K | Buy |
+18,519
| New | +$144K | 0.01% | 1376 |
|
|
2016
Q4 | – | Sell |
-22,524
| Closed | -$186K | – | 1819 |
|
|
2016
Q3 | $186K | Sell |
22,524
-7,504
| -25% | -$79.8K | 0.01% | 1284 |
|
|
2016
Q2 | $410K | Buy |
30,028
+18,844
| +168% | +$303K | 0.02% | 894 |
|
|
2016
Q1 | $204K | Buy |
+11,184
| New | +$171K | 0.01% | 1211 |
|
|
2015
Q3 | – | Sell |
-86,332
| Closed | -$1.29M | – | 1943 |
|
|
2015
Q2 | $1.29M | Buy |
86,332
+64,970
| +304% | +$1.12M | 0.06% | 431 |
|
|
2015
Q1 | $383K | Buy |
21,362
+13,281
| +164% | +$224K | 0.02% | 1108 |
|
|
2014
Q4 | $130K | Buy |
+8,081
| New | +$104K | 0.01% | 1646 |
|
|
2014
Q3 | – | Sell |
-10,171
| Closed | -$131K | – | 1816 |
|
|
2014
Q2 | $131K | Buy |
+10,171
| New | +$153K | 0.01% | 1282 |
|
Other funds holding MGNI
GIM
Cubist Systematic Strategies's MGNI Position: Q3 2025 in Review
Cubist Systematic Strategies opened a new position in Magnite (MGNI) in Q3 2025: 71,251 shares worth $1.55M. The stake represents 0.01% of the portfolio and ranks #1716 among its holdings. This is a return to the name: Cubist Systematic Strategies previously reported a position in MGNI as recently as Q1 2024.
Cubist Systematic Strategies first reported a position in MGNI in Q2 2014 and has held it in 33 quarters since. The position peaked at $5.7M in Q2 2021. 316 funds tracked by Wall St. Rank hold MGNI as of Q3 2025.
- Cubist Systematic Strategies held 71,251 shares of Magnite worth $1.55M as of Q3 2025.
- Magnite was a new Cubist Systematic Strategies position in Q3 2025.
- Magnite made up 0.01% of Cubist Systematic Strategies's portfolio in Q3 2025, its #1716 holding.
- Cubist Systematic Strategies first reported a position in Magnite in Q2 2014 and has held it in 33 quarters since.
- Cubist Systematic Strategies's Magnite position peaked at $5.7M in Q2 2021.
- 316 funds tracked by Wall St. Rank held Magnite as of Q3 2025.
Based on Cubist Systematic Strategies's 13F filing for Q3 2025, filed 14 Nov 2025.