Millennium Management — ALXN Trade History
Quarter-by-quarter changes in the ALEXION PHARMACEUTICALS INC position · CUSIP 015351109
Sold outFirst seen: 2016 Q3
| Quarter | Filed | Activity | Shares | Δ Shares | Δ % | Value | % Port. |
|---|---|---|---|---|---|---|---|
| 2026 Q2 | 2026-08-14 | — | — | — | — | — | — |
| 2026 Q1 | 2026-05-15 | — | — | — | — | — | — |
| 2025 Q4 | 2026-02-17 | — | — | — | — | — | — |
| 2025 Q3 | 2025-11-14 | — | — | — | — | — | — |
| 2025 Q2 | 2025-08-14 | — | — | — | — | — | — |
| 2025 Q1 | 2025-05-15 | — | — | — | — | — | — |
| 2024 Q4 | 2025-02-14 | — | — | — | — | — | — |
| 2024 Q3 | 2024-11-14 | — | — | — | — | — | — |
| 2024 Q2 | 2024-08-14 | — | — | — | — | — | — |
| 2024 Q1 | 2024-05-15 | — | — | — | — | — | — |
| 2023 Q4 | 2024-02-14 | — | — | — | — | — | — |
| 2023 Q3 | 2023-11-14 | — | — | — | — | — | — |
| 2023 Q2 | 2023-08-14 | — | — | — | — | — | — |
| 2023 Q1 | 2023-05-15 | — | — | — | — | — | — |
| 2022 Q4 | 2023-02-14 | — | — | — | — | — | — |
| 2022 Q3 | 2022-11-14 | — | — | — | — | — | — |
| 2022 Q2 | 2022-08-15 | — | — | — | — | — | — |
| 2022 Q1 | 2022-05-16 | — | — | — | — | — | — |
| 2021 Q4 | 2022-02-14 | — | — | — | — | — | — |
| 2021 Q3 | 2021-11-15 | Sold out | — | -4,829,380 | -100.0% | — | — |
| 2021 Q2 | 2021-08-16 | Add | 4,829,380 | 2,276,841 | +89.2% | $887.2M | 0.54% |
| 2021 Q1 | 2021-05-17 | Add | 2,552,539 | 668,892 | +35.5% | $390.3M | 0.28% |
| 2020 Q4 | 2021-02-16 | Add | 1,883,647 | 1,641,582 | +678.2% | $294.3M | 0.21% |
| 2020 Q3 | 2020-11-16 | Reduce | 242,065 | -136,878 | -36.1% | $27.7M | 0.03% |
| 2020 Q2 | 2020-08-14 | Reduce | 378,943 | -405,380 | -51.7% | $42.5M | 0.06% |
| 2020 Q1 | 2020-05-14 | Add | 784,323 | 641,975 | +451.0% | $70.4M | 0.16% |
| 2019 Q4 | 2020-02-14 | Reduce | 142,348 | -273,213 | -65.7% | $15.4M | 0.02% |
| 2019 Q3 | 2019-11-14 | Add | 415,561 | 163,892 | +65.1% | $40.7M | 0.06% |
| 2019 Q2 | 2019-08-15 | Add | 251,669 | 130,342 | +107.4% | $33.0M | 0.05% |
| 2019 Q1 | 2019-05-14 | Reduce | 121,327 | -536,489 | -81.6% | $16.4M | 0.03% |
| 2018 Q4 | 2019-02-15 | New | 657,816 | 657,816 | — | $64.0M | 0.10% |
| 2018 Q3 | 2018-11-14 | Sold out | — | -206,242 | -100.0% | — | — |
| 2018 Q2 | 2018-08-14 | New | 206,242 | 206,242 | — | $25.6M | 0.03% |
| 2018 Q1 | 2018-05-15 | — | — | — | — | — | — |
| 2017 Q4 | 2018-02-14 | — | — | — | — | — | — |
| 2017 Q3 | 2017-11-14 | — | — | — | — | — | — |
| 2017 Q2 | 2017-08-14 | — | — | — | — | — | — |
| 2017 Q1 | 2017-05-15 | — | — | — | — | — | — |
| 2016 Q4 | 2017-02-14 | — | — | — | — | — | — |
| 2016 Q3 | 2016-11-14 | — | — | — | — | — | — |
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.