Citadel Advisors (Ken Griffin) — AMG Trade History
Quarter-by-quarter changes in the AFFILIATED MANAGERS GROUP position · CUSIP 008252108
Currently held · 4.5 YearsFirst seen: 2015 Q4
| Quarter | Filed | Activity | Shares | Δ Shares | Δ % | Value | % Port. |
|---|---|---|---|---|---|---|---|
| 2026 Q2 | 2026-09-02 | Reduce | 198,492 | -48,728 | -19.7% | $67.2M | 0.01% |
| 2026 Q1 | 2026-05-15 | Reduce | 247,220 | -72,217 | -22.6% | $68.4M | 0.01% |
| 2025 Q4 | 2026-02-17 | Reduce | 319,437 | -325,704 | -50.5% | $92.1M | 0.01% |
| 2025 Q3 | 2025-11-14 | Add | 645,141 | 5,353 | +0.8% | $153.8M | 0.02% |
| 2025 Q2 | 2025-08-14 | Add | 639,788 | 284,957 | +80.3% | $125.9M | 0.02% |
| 2025 Q1 | 2025-05-15 | Add | 354,831 | 3,802 | +1.1% | $59.6M | 0.01% |
| 2024 Q4 | 2025-02-14 | Reduce | 351,029 | -71,669 | -17.0% | $64.9M | 0.01% |
| 2024 Q3 | 2024-11-14 | Reduce | 422,698 | -31,115 | -6.9% | $75.2M | 0.01% |
| 2024 Q2 | 2024-08-14 | Add | 453,813 | 234,850 | +107.3% | $70.9M | 0.01% |
| 2024 Q1 | 2024-05-15 | Reduce | 218,963 | -142,872 | -39.5% | $36.7M | 0.01% |
| 2023 Q4 | 2024-02-14 | Add | 361,835 | 79,999 | +28.4% | $54.8M | 0.01% |
| 2023 Q3 | 2023-11-14 | Add | 281,836 | 279,373 | +11342.8% | $36.7M | 0.01% |
| 2023 Q2 | 2023-08-14 | Reduce | 2,463 | -106,325 | -97.7% | $369.2K | — |
| 2023 Q1 | 2023-05-15 | Reduce | 108,788 | -356,765 | -76.6% | $15.5M | 0.00% |
| 2022 Q4 | 2023-02-14 | Add | 465,553 | 80,786 | +21.0% | $73.8M | 0.02% |
| 2022 Q3 | 2022-11-14 | Add | 384,767 | 167,315 | +76.9% | $43.0M | 0.01% |
| 2022 Q2 | 2022-08-15 | Reduce | 217,452 | -102,080 | -31.9% | $25.4M | 0.01% |
| 2022 Q1 | 2022-05-16 | New | 319,532 | 319,532 | — | $45.0M | 0.01% |
| 2021 Q3 | 2022-03-11 | Sold out | — | -2,511 | -100.0% | — | — |
| 2021 Q4 | 2022-02-14 | Reduce | 2,511 | -39,949 | -94.1% | $413.0K | — |
| 2021 Q2 | 2021-08-16 | Add | 42,460 | 39,091 | +1160.3% | $6.5M | 0.00% |
| 2021 Q1 | 2021-05-21 | Reduce | 3,369 | -9,559 | -73.9% | $502.0K | — |
| 2020 Q4 | 2021-02-16 | Add | 12,928 | 9,428 | +269.4% | $1.3M | — |
| 2020 Q3 | 2020-11-16 | Reduce | 3,500 | -10,937 | -75.8% | $239.0K | — |
| 2020 Q2 | 2020-08-14 | Reduce | 14,437 | -47,162 | -76.6% | $1.1M | — |
| 2020 Q1 | 2020-05-15 | Reduce | 61,599 | -32,252 | -34.4% | $3.6M | 0.00% |
| 2019 Q4 | 2020-02-14 | New | 93,851 | 93,851 | — | $8.0M | 0.00% |
| 2019 Q2 | 2020-02-14 | — | — | — | — | — | — |
| 2018 Q4 | 2019-11-14 | — | — | — | — | — | — |
| 2019 Q3 | 2019-11-14 | — | — | — | — | — | — |
| 2018 Q2 | 2019-08-14 | — | — | — | — | — | — |
| 2018 Q3 | 2019-05-15 | Sold out | — | -477,158 | -100.0% | — | — |
| 2019 Q1 | 2019-05-15 | New | 477,158 | 477,158 | — | $51.1M | 0.03% |
| 2018 Q1 | 2019-02-14 | Sold out | — | -478,828 | -100.0% | — | — |
| 2017 Q4 | 2018-02-09 | Reduce | 478,828 | -502,038 | -51.2% | $98.3M | 0.06% |
| 2017 Q3 | 2017-11-09 | Add | 980,866 | 162,600 | +19.9% | $186.2M | 0.14% |
| 2017 Q2 | 2017-08-11 | Add | 818,266 | 620,936 | +314.7% | $135.7M | 0.12% |
| 2017 Q1 | 2017-05-12 | Add | 197,330 | 195,279 | +9521.2% | $32.4M | 0.03% |
| 2016 Q4 | 2017-02-10 | Reduce | 2,051 | -1,094,298 | -99.8% | $298.0K | — |
| 2015 Q4 | 2017-01-31 | New | 1,096,349 | 1,096,349 | — | $175.2M | 0.19% |
Share counts are split-adjusted. Time held counts consecutive quarters ending with the latest filing; more than ten years shows as ">10 Years".
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.