Citadel Advisors (Ken Griffin) — WLK Trade History
Quarter-by-quarter changes in the WESTLAKE CORPORATION position · CUSIP 960413102
Currently held · 4.5 YearsFirst seen: 2015 Q4
| Quarter | Filed | Activity | Shares | Δ Shares | Δ % | Value | % Port. |
|---|---|---|---|---|---|---|---|
| 2026 Q2 | 2026-09-02 | Add | 1,054,868 | 339,282 | +47.4% | $77.0M | 0.01% |
| 2026 Q1 | 2026-05-15 | Add | 715,586 | 512,283 | +252.0% | $83.6M | 0.01% |
| 2025 Q4 | 2026-02-17 | Reduce | 203,303 | -997,548 | -83.1% | $15.0M | 0.00% |
| 2025 Q3 | 2025-11-14 | Add | 1,200,851 | 1,188,545 | +9658.3% | $92.5M | 0.01% |
| 2025 Q2 | 2025-08-14 | Reduce | 12,306 | -840,550 | -98.6% | $934.4K | — |
| 2025 Q1 | 2025-05-15 | Add | 852,856 | 172,525 | +25.4% | $85.3M | 0.02% |
| 2024 Q4 | 2025-02-14 | Add | 680,331 | 155,978 | +29.7% | $78.0M | 0.01% |
| 2024 Q3 | 2024-11-14 | Reduce | 524,353 | -53,630 | -9.3% | $78.8M | 0.01% |
| 2024 Q2 | 2024-08-14 | Add | 577,983 | 15,813 | +2.8% | $83.7M | 0.02% |
| 2024 Q1 | 2024-05-15 | Reduce | 562,170 | -18,308 | -3.2% | $85.9M | 0.02% |
| 2023 Q4 | 2024-02-14 | Reduce | 580,478 | -190,176 | -24.7% | $81.2M | 0.02% |
| 2023 Q3 | 2023-11-14 | Reduce | 770,654 | -62,695 | -7.5% | $96.1M | 0.02% |
| 2023 Q2 | 2023-08-14 | Reduce | 833,349 | -393,027 | -32.0% | $99.6M | 0.02% |
| 2023 Q1 | 2023-05-15 | Add | 1,226,376 | 871,295 | +245.4% | $142.2M | 0.03% |
| 2022 Q4 | 2023-02-14 | Add | 355,081 | 324,496 | +1061.0% | $36.4M | 0.01% |
| 2022 Q3 | 2022-11-14 | Reduce | 30,585 | -106,054 | -77.6% | $2.7M | 0.00% |
| 2022 Q2 | 2022-08-15 | Reduce | 136,639 | -70,317 | -34.0% | $13.4M | 0.00% |
| 2022 Q1 | 2022-05-16 | New | 206,956 | 206,956 | — | $25.5M | 0.01% |
| 2021 Q3 | 2022-03-11 | Sold out | — | -194,891 | -100.0% | — | — |
| 2021 Q4 | 2022-02-14 | Reduce | 194,891 | -279,617 | -58.9% | $18.9M | 0.00% |
| 2021 Q2 | 2021-08-16 | Reduce | 474,508 | -367,872 | -43.7% | $42.7M | 0.01% |
| 2021 Q1 | 2021-05-21 | Add | 842,380 | 55,167 | +7.0% | $74.8M | 0.02% |
| 2020 Q4 | 2021-02-16 | Add | 787,213 | 312,694 | +65.9% | $64.2M | 0.02% |
| 2020 Q3 | 2020-11-16 | Add | 474,519 | 143,280 | +43.3% | $30.0M | 0.01% |
| 2020 Q2 | 2020-08-14 | Add | 331,239 | 114,181 | +52.6% | $17.8M | 0.01% |
| 2020 Q1 | 2020-05-15 | Add | 217,058 | 187,201 | +627.0% | $8.3M | 0.00% |
| 2019 Q4 | 2020-02-14 | New | 29,857 | 29,857 | — | $2.1M | 0.00% |
| 2019 Q2 | 2020-02-14 | — | — | — | — | — | — |
| 2018 Q4 | 2019-11-14 | Sold out | — | -42,594 | -100.0% | — | — |
| 2019 Q3 | 2019-11-14 | New | 42,594 | 42,594 | — | $2.8M | 0.00% |
| 2018 Q2 | 2019-08-14 | — | — | — | — | — | — |
| 2018 Q3 | 2019-05-15 | Sold out | — | -647,802 | -100.0% | — | — |
| 2019 Q1 | 2019-05-15 | New | 647,802 | 647,802 | — | $44.0M | 0.02% |
| 2018 Q1 | 2019-02-14 | Sold out | — | -59,734 | -100.0% | — | — |
| 2017 Q4 | 2018-02-09 | Reduce | 59,734 | -835,154 | -93.3% | $6.4M | 0.00% |
| 2017 Q3 | 2017-11-09 | Reduce | 894,888 | -1,501,258 | -62.7% | $74.4M | 0.06% |
| 2017 Q2 | 2017-08-11 | Add | 2,396,146 | 82,144 | +3.5% | $158.6M | 0.13% |
| 2017 Q1 | 2017-05-12 | Add | 2,314,002 | 1,801,177 | +351.2% | $152.8M | 0.14% |
| 2016 Q4 | 2017-02-10 | Reduce | 512,825 | -1,445,229 | -73.8% | $28.7M | 0.03% |
| 2015 Q4 | 2017-01-31 | New | 1,958,054 | 1,958,054 | — | $106.4M | 0.12% |
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.