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 | $12.5M | Buy |
1,052,908
+508,590
| +93% | +$6.82M | ﹤0.01% | 2932 |
|
|
2025
Q4 | $8.83M | Buy |
544,318
+374,757
| +221% | +$6.22M | ﹤0.01% | 3420 |
|
|
2025
Q3 | $3.69M | Sell |
169,561
-665,541
| -80% | -$15.7M | ﹤0.01% | 4913 |
|
|
2025
Q2 | $20.1M | Buy |
835,102
+242,173
| +41% | +$3.57M | ﹤0.01% | 2123 |
|
|
2025
Q1 | $6.77M | Buy |
592,929
+282,690
| +91% | +$4.51M | ﹤0.01% | 3414 |
|
|
2024
Q4 | $4.94M | Sell |
310,239
-392,269
| -56% | -$5.76M | ﹤0.01% | 3990 |
|
|
2024
Q3 | $9.73M | Buy |
702,508
+413,049
| +143% | +$5.63M | ﹤0.01% | 2938 |
|
|
2024
Q2 | $3.85M | Sell |
289,459
-127,307
| -31% | -$1.39M | ﹤0.01% | 4168 |
|
|
2024
Q1 | $4.48M | Buy |
416,766
+36,307
| +10% | +$363K | ﹤0.01% | 4112 |
|
|
2023
Q4 | $3.55M | Sell |
380,459
-173,292
| -31% | -$1.37M | ﹤0.01% | 4346 |
|
|
2023
Q3 | $4.18M | Buy |
553,751
+263,525
| +91% | +$2.84M | ﹤0.01% | 3949 |
|
|
2023
Q2 | $3.96M | Sell |
290,226
-574,635
| -66% | -$6.4M | ﹤0.01% | 4003 |
|
|
2023
Q1 | $8.01M | Buy |
864,861
+225,010
| +35% | +$2.4M | ﹤0.01% | 3104 |
|
|
2022
Q4 | $6.78M | Sell |
639,851
-224,178
| -26% | -$2.05M | ﹤0.01% | 3385 |
|
|
2022
Q3 | $5.68M | Sell |
864,029
-608,372
| -41% | -$4.9M | ﹤0.01% | 3661 |
|
|
2022
Q2 | $13.1M | Buy |
1,472,401
+441,022
| +43% | +$4.73M | ﹤0.01% | 2342 |
|
|
2022
Q1 | $13.6M | Buy |
1,031,379
+39,217
| +4% | +$529K | ﹤0.01% | 2497 |
|
|
2021
Q4 | $17.4M | Sell |
992,162
-290,568
| -23% | -$6.55M | ﹤0.01% | 2199 |
|
|
2021
Q3 | $35.9M | Sell |
1,282,730
-223,707
| -15% | -$6.73M | 0.01% | 1400 |
|
|
2021
Q2 | $51M | Buy |
1,506,437
+777,711
| +107% | +$26.4M | 0.01% | 1108 |
|
|
2021
Q1 | $30.3M | Buy |
728,726
+431,981
| +146% | +$18.7M | 0.01% | 1499 |
|
|
2020
Q4 | $9.11M | Sell |
296,745
-91,938
| -24% | -$1.39M | ﹤0.01% | 2775 |
|
|
2020
Q3 | $2.7M | Buy |
388,683
+66,210
| +21% | +$442K | ﹤0.01% | 4164 |
|
|
2020
Q2 | $2.15M | Sell |
322,473
-79,301
| -20% | -$495K | ﹤0.01% | 4443 |
|
|
2020
Q1 | $2.23M | Buy |
401,774
+106,600
| +36% | +$980K | ﹤0.01% | 3964 |
|
|
2019
Q4 | $2.41M | Sell |
295,174
-225,299
| -43% | -$1.85M | ﹤0.01% | 4115 |
|
|
2019
Q3 | $4.53M | Buy |
520,473
+386,276
| +288% | +$3.39M | ﹤0.01% | 3245 |
|
|
2019
Q2 | $854K | Sell |
134,197
-16,163
| -11% | -$99.3K | ﹤0.01% | 5953 |
|
|
2019
Q1 | $915K | Buy |
150,360
+29,381
| +24% | +$151K | ﹤0.01% | 5743 |
|
|
2018
Q4 | $452K | Buy |
120,979
+102,375
| +550% | +$391K | ﹤0.01% | 6551 |
|
|
2018
Q3 | $67K | Buy |
18,604
+3,922
| +27% | +$13.9K | ﹤0.01% | 8727 |
|
|
2018
Q2 | $42K | Buy |
+14,682
| New | +$35K | ﹤0.01% | 8474 |
|
|
2018
Q1 | – | Sell |
-677,651
| Closed | -$1.28M | – | 8581 |
|
|
2017
Q4 | $1.27M | Sell |
677,651
-257,699
| -28% | -$644K | ﹤0.01% | 4310 |
|
|
2017
Q3 | $3.64M | Buy |
935,350
+198,314
| +27% | +$844K | ﹤0.01% | 2678 |
|
|
2017
Q2 | $3.79M | Buy |
737,036
+268,411
| +57% | +$1.48M | ﹤0.01% | 2416 |
|
|
2017
Q1 | $2.76M | Buy |
468,625
+14,695
| +3% | +$114K | ﹤0.01% | 2687 |
|
|
2016
Q4 | $3.37M | Buy |
453,930
+70,584
| +18% | +$550K | ﹤0.01% | 2382 |
|
|
2016
Q3 | $3.17M | Sell |
383,346
-91,466
| -19% | -$972K | ﹤0.01% | 2445 |
|
|
2016
Q2 | $6.48M | Buy |
474,812
+321,671
| +210% | +$5.18M | 0.01% | 1601 |
|
|
2016
Q1 | $2.8M | Buy |
153,141
+2,497
| +2% | +$38.2K | ﹤0.01% | 2321 |
|
|
2015
Q4 | $2.48M | Buy |
150,644
+100,038
| +198% | +$1.55M | ﹤0.01% | 2526 |
|
|
2015
Q3 | $735K | Sell |
50,606
-8,889
| -15% | -$136K | ﹤0.01% | 4234 |
|
|
2015
Q2 | $890K | Sell |
59,495
-77,221
| -56% | -$1.33M | ﹤0.01% | 4117 |
|
|
2015
Q1 | $2.45M | Buy |
136,716
+80,695
| +144% | +$1.36M | ﹤0.01% | 2815 |
|
|
2014
Q4 | $904K | Buy |
56,021
+50,101
| +846% | +$647K | ﹤0.01% | 3891 |
|
|
2014
Q3 | $69K | Sell |
5,920
-38,097
| -87% | -$417K | ﹤0.01% | 6681 |
|
|
2014
Q2 | $565K | Buy |
+44,017
| New | +$661K | ﹤0.01% | 4234 |
|
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.