Citadel Advisors (Ken Griffin) — WST Trade History
Quarter-by-quarter changes in the WEST PHARMACEUTICAL SVSC INC position · CUSIP 955306105
Currently held · 4.5 YearsFirst seen: 2015 Q4
| Quarter | Filed | Activity | Shares | Δ Shares | Δ % | Value | % Port. |
|---|---|---|---|---|---|---|---|
| 2026 Q2 | 2026-09-02 | Add | 352,769 | 29,182 | +9.0% | $126.6M | 0.01% |
| 2026 Q1 | 2026-05-15 | Add | 323,587 | 77,947 | +31.7% | $81.1M | 0.01% |
| 2025 Q4 | 2026-02-17 | Reduce | 245,640 | -481,897 | -66.2% | $67.6M | 0.01% |
| 2025 Q3 | 2025-11-14 | Add | 727,537 | 598,751 | +464.9% | $190.9M | 0.03% |
| 2025 Q2 | 2025-08-14 | Reduce | 128,786 | -151,941 | -54.1% | $28.2M | 0.01% |
| 2025 Q1 | 2025-05-15 | Reduce | 280,727 | -390,151 | -58.2% | $62.8M | 0.01% |
| 2024 Q4 | 2025-02-14 | Add | 670,878 | 622,752 | +1294.0% | $219.8M | 0.04% |
| 2024 Q3 | 2024-11-14 | Reduce | 48,126 | -232,218 | -82.8% | $14.4M | 0.00% |
| 2024 Q2 | 2024-08-14 | Reduce | 280,344 | -779,802 | -73.6% | $92.3M | 0.02% |
| 2024 Q1 | 2024-05-15 | Add | 1,060,146 | 131,129 | +14.1% | $419.5M | 0.08% |
| 2023 Q4 | 2024-02-14 | Reduce | 929,017 | -622,761 | -40.1% | $327.1M | 0.07% |
| 2023 Q3 | 2023-11-14 | Add | 1,551,778 | 498,447 | +47.3% | $582.2M | 0.13% |
| 2023 Q2 | 2023-08-14 | Reduce | 1,053,331 | -45,851 | -4.2% | $402.9M | 0.08% |
| 2023 Q1 | 2023-05-15 | Add | 1,099,182 | 938,098 | +582.4% | $380.8M | 0.08% |
| 2022 Q4 | 2023-02-14 | Reduce | 161,084 | -55,815 | -25.7% | $37.9M | 0.01% |
| 2022 Q3 | 2022-11-14 | Add | 216,899 | 81,966 | +60.7% | $53.4M | 0.01% |
| 2022 Q2 | 2022-08-15 | Reduce | 134,933 | -260,198 | -65.9% | $40.8M | 0.01% |
| 2022 Q1 | 2022-05-16 | New | 395,131 | 395,131 | — | $162.3M | 0.03% |
| 2021 Q3 | 2022-03-11 | Sold out | — | -1,016 | -100.0% | — | — |
| 2021 Q4 | 2022-02-14 | Reduce | 1,016 | -26,672 | -96.3% | $477.0K | — |
| 2021 Q2 | 2021-08-16 | New | 27,688 | 27,688 | — | $9.9M | 0.00% |
| 2021 Q1 | 2021-05-21 | Sold out | — | -16,711 | -100.0% | — | — |
| 2020 Q4 | 2021-02-16 | Add | 16,711 | 11,541 | +223.2% | $4.7M | 0.00% |
| 2020 Q3 | 2020-11-16 | Reduce | 5,170 | -135,855 | -96.3% | $1.4M | — |
| 2020 Q2 | 2020-08-14 | Add | 141,025 | 128,809 | +1054.4% | $32.0M | 0.01% |
| 2020 Q1 | 2020-05-15 | Reduce | 12,216 | -23,052 | -65.4% | $1.9M | 0.00% |
| 2019 Q4 | 2020-02-14 | New | 35,268 | 35,268 | — | $5.3M | 0.00% |
| 2019 Q2 | 2020-02-14 | — | — | — | — | — | — |
| 2018 Q4 | 2019-11-14 | Sold out | — | -128,461 | -100.0% | — | — |
| 2019 Q3 | 2019-11-14 | New | 128,461 | 128,461 | — | $18.2M | 0.01% |
| 2018 Q2 | 2019-08-14 | — | — | — | — | — | — |
| 2018 Q3 | 2019-05-15 | Sold out | — | -12,798 | -100.0% | — | — |
| 2019 Q1 | 2019-05-15 | New | 12,798 | 12,798 | — | $1.4M | 0.00% |
| 2018 Q1 | 2019-02-14 | Sold out | — | -32,697 | -100.0% | — | — |
| 2017 Q4 | 2018-02-09 | Add | 32,697 | 28,054 | +604.2% | $3.2M | 0.00% |
| 2017 Q3 | 2017-11-09 | Reduce | 4,643 | -22,429 | -82.8% | $447.0K | — |
| 2017 Q2 | 2017-08-11 | Reduce | 27,072 | -21,200 | -43.9% | $2.6M | 0.00% |
| 2017 Q1 | 2017-05-12 | Add | 48,272 | 32,064 | +197.8% | $3.9M | 0.00% |
| 2016 Q4 | 2017-02-10 | Reduce | 16,208 | -38,913 | -70.6% | $1.4M | 0.00% |
| 2015 Q4 | 2017-01-31 | New | 55,121 | 55,121 | — | $3.3M | 0.00% |
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.