Citadel Advisors’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 | $1.24M | Sell |
104,600
-333,600
| -76% | -$4.47M | ﹤0.01% | 7182 |
|
|
2025
Q4 | $7.11M | Buy |
438,200
+108,200
| +33% | +$1.8M | ﹤0.01% | 3737 |
|
|
2025
Q3 | $7.19M | Buy |
330,000
+183,600
| +125% | +$4.34M | ﹤0.01% | 3744 |
|
|
2025
Q2 | $3.53M | Sell |
146,400
-75,900
| -34% | -$1.12M | ﹤0.01% | 4698 |
|
|
2025
Q1 | $2.54M | Sell |
222,300
-127,000
| -36% | -$2.02M | ﹤0.01% | 5080 |
|
|
2024
Q4 | $5.56M | Sell |
349,300
-151,500
| -30% | -$2.22M | ﹤0.01% | 3786 |
|
|
2024
Q3 | $6.94M | Buy |
500,800
+236,500
| +89% | +$3.22M | ﹤0.01% | 3438 |
|
|
2024
Q2 | $3.51M | Buy |
264,300
+102,200
| +63% | +$1.12M | ﹤0.01% | 4316 |
|
|
2024
Q1 | $1.74M | Sell |
162,100
-110,700
| -41% | -$1.11M | ﹤0.01% | 5796 |
|
|
2023
Q4 | $2.55M | Sell |
272,800
-55,900
| -17% | -$442K | ﹤0.01% | 4946 |
|
|
2023
Q3 | $2.48M | Sell |
328,700
-125,500
| -28% | -$1.35M | ﹤0.01% | 4832 |
|
|
2023
Q2 | $6.2M | Buy |
454,200
+205,300
| +82% | +$2.29M | ﹤0.01% | 3316 |
|
|
2023
Q1 | $2.3M | Sell |
248,900
-96,500
| -28% | -$1.03M | ﹤0.01% | 5092 |
|
|
2022
Q4 | $3.66M | Buy |
345,400
+148,100
| +75% | +$1.35M | ﹤0.01% | 4410 |
|
|
2022
Q3 | $1.3M | Buy |
197,300
+62,800
| +47% | +$505K | ﹤0.01% | 6441 |
|
|
2022
Q2 | $1.19M | Sell |
134,500
-5,100
| -4% | -$54.7K | ﹤0.01% | 6622 |
|
|
2022
Q1 | $1.84M | Sell |
139,600
-27,200
| -16% | -$367K | ﹤0.01% | 6264 |
|
|
2021
Q4 | $2.92M | Sell |
166,800
-9,700
| -5% | -$219K | ﹤0.01% | 5392 |
|
|
2021
Q3 | $4.94M | Sell |
176,500
-57,600
| -25% | -$1.73M | ﹤0.01% | 4324 |
|
|
2021
Q2 | $7.92M | Sell |
234,100
-398,000
| -63% | -$13.5M | ﹤0.01% | 3513 |
|
|
2021
Q1 | $26.3M | Buy |
632,100
+290,200
| +85% | +$12.6M | 0.01% | 1647 |
|
|
2020
Q4 | $10.5M | Buy |
341,900
+292,800
| +596% | +$4.43M | ﹤0.01% | 2583 |
|
|
2020
Q3 | $341K | Buy |
49,100
+20,800
| +73% | +$139K | ﹤0.01% | 7925 |
|
|
2020
Q2 | $189K | Sell |
28,300
-10,900
| -28% | -$68.1K | ﹤0.01% | 8573 |
|
|
2020
Q1 | $218K | Sell |
39,200
-27,400
| -41% | -$252K | ﹤0.01% | 7873 |
|
|
2019
Q4 | $543K | Buy |
66,600
+37,700
| +130% | +$310K | ﹤0.01% | 6682 |
|
|
2019
Q3 | $252K | Buy |
28,900
+14,900
| +106% | +$131K | ﹤0.01% | 7820 |
|
|
2019
Q2 | $89K | Buy |
+14,000
| New | +$86K | ﹤0.01% | 8572 |
|
|
2018
Q2 | – | Sell |
-17,500
| Closed | -$32K | – | 9107 |
|
|
2018
Q1 | $32K | Buy |
17,500
+3,700
| +27% | +$7.01K | ﹤0.01% | 8035 |
|
|
2017
Q4 | $26K | Buy |
+13,800
| New | +$34.5K | ﹤0.01% | 7790 |
|
|
2016
Q3 | – | Sell |
-14,700
| Closed | -$201K | – | 7545 |
|
|
2016
Q2 | $201K | Sell |
14,700
-9,400
| -39% | -$151K | ﹤0.01% | 5827 |
|
|
2016
Q1 | $441K | Buy |
24,100
+16,800
| +230% | +$257K | ﹤0.01% | 4581 |
|
|
2015
Q4 | $120K | Buy |
7,300
+1,000
| +16% | +$15.5K | ﹤0.01% | 6483 |
|
|
2015
Q3 | $92K | Sell |
6,300
-2,300
| -27% | -$35.1K | ﹤0.01% | 7034 |
|
|
2015
Q2 | $129K | Buy |
8,600
+6,600
| +330% | +$114K | ﹤0.01% | 6821 |
|
|
2015
Q1 | $36K | Sell |
2,000
-15,000
| -88% | -$253K | ﹤0.01% | 7593 |
|
|
2014
Q4 | $274K | Buy |
17,000
+14,100
| +486% | +$182K | ﹤0.01% | 5569 |
|
|
2014
Q3 | $34K | Buy |
+2,900
| New | +$31.7K | ﹤0.01% | 7137 |
|
Other funds holding MGNI
VPM
VCM
N
Citadel Advisors's MGNI Position: Q1 2026 in Review
Citadel Advisors increased its Magnite (MGNI) stake by 93% in Q1 2026, buying an estimated $6.82M and bringing the position to 1,052,908 shares worth $12.5M. The position accounts for ﹤0.01% of the portfolio, ranked #2932.
Citadel Advisors first reported a position in MGNI in Q2 2014 and has held it in 47 quarters since. The position peaked at $51M in Q2 2021. 297 funds tracked by Wall St. Rank hold MGNI as of Q1 2026.
- Citadel Advisors held 1,052,908 shares of Magnite worth $12.5M as of Q1 2026.
- Citadel Advisors bought 508,590 Magnite shares in Q1 2026, an estimated $6.82M.
- Magnite made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #2932 holding.
- Citadel Advisors first reported a position in Magnite in Q2 2014 and has held it in 47 quarters since.
- Citadel Advisors's Magnite position peaked at $51M in Q2 2021.
- 297 funds tracked by Wall St. Rank held Magnite as of Q1 2026.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.