Ownership history in RENAISSANCE TECHNOLOGIES LLC · 58 quarters on record
This page tracks every 13F SEC filing in which RENAISSANCE TECHNOLOGIES LLC reported a position in WESTLAKE CHEMICAL CORP COM (WLK). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q3 | REDUCED | 25,900 | -118,300 | -82.0% | 0.00% | $2.0M | $76.01 |
| 2025 Q2 | REDUCED | 144,200 | -135,900 | -48.5% | 0.01% | $10.9M | $74.42 |
| 2025 Q1 | REDUCED | 280,100 | -70,600 | -20.1% | 0.04% | $28.0M | $97.39 |
| 2024 Q4 | ADDED | 350,700 | +182,600 | +108.6% | 0.06% | $40.2M | $111.09 |
| 2024 Q3 | ADDED | 168,100 | +109,000 | +184.4% | 0.04% | $25.3M | $145.04 |
| 2024 Q2 | REDUCED | 59,100 | -9,900 | -14.3% | 0.01% | $8.6M | $139.26 |
| 2023 Q4 | ADDED | 69,000 | +6,700 | +10.8% | 0.01% | $9.7M | $133.67 |
| 2023 Q3 | ADDED | 62,300 | +46,700 | +299.4% | 0.01% | $7.8M | $118.61 |
| 2023 Q2 | REDUCED | 15,600 | -61,900 | -79.9% | 0.00% | $1.9M | $113.23 |
| 2022 Q3 | ADDED | 77,500 | +30,600 | +65.2% | 0.01% | $6.7M | $81.57 |
As of 2025 Q4 — sorted by position size