Albert Chao is CEO & President at WESTLAKE CORP (WLK). They have made 50 open-market trades across 2 companies since 2004, most recently 2026-08-11.
CIK 0001299403
20 open-market purchases totalling $6.5M since 2004, against 30 sales. Across 20 scored buys the stock is up 22.5% at ninety days, and 9.0 points ahead of the S&P over the same stretch.
20 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| WLK | 642,880 | $40.7M |
| WLKP | 164,856 | $3.5M |
| Total | $44.1M |
Shares reported on the most recent Form 4, priced at the 2026-08-11 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 65% | 55% | 85% |
| Avg Move | +5.5% | +7.2% | +22.5% |
| Alpha | +2.7% | +1.5% | +9.0% |
| Scored | 20 | 20 | 20 |
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 56% | 56% | 38% |
| Avg Move | -4.2% | -1.6% | +6.0% |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| WLK | SELL | 2026-08-11 | 2026-08-11 | $80.28 | $3.1M | -1.5% | -10.6% | — |
| WLK | SELL | 2025-12-22 | 2025-12-23 | $73.57 | $6.0M | +5.2% | +17.9% | +47.4% |
| WLK | SELL | 2022-05-19 | 2022-05-23 | $130.38 | $9.9M | +4.0% | -23.4% | -18.0% |
| WLK | SELL | 2021-12-02 | 2021-12-06 | $91.96 | $5.4M | -4.8% | +4.8% | +14.0% |
| WLK | SELL | 2021-12-01 | 2021-12-03 | $91.55 | $4.6M | -4.1% | +2.4% | +18.3% |
| WLK | BUY | 2021-08-11 | 2021-08-12 | $86.21 | $517K | +1.1% | +2.2% | +16.6% |
| WLK | SELL | 2020-11-06 | 2020-11-10 | $72.99 | $8.1M | -3.1% | +10.8% | +13.1% |
| WLKP | BUY | 2020-03-24 | 2020-03-25 | $13.70 | $65K | -7.1% | -0.0% | +21.2% |
| WLKP | BUY | 2020-03-23 | 2020-03-24 | $13.12 | $125K | -0.7% | +10.8% | +35.4% |
| WLKP | BUY | 2020-03-20 | 2020-03-23 | $13.88 | $360K | +11.6% | +18.7% | +48.7% |
| WLKP | BUY | 2020-03-19 | 2020-03-20 | $13.80 | $126K | +5.1% | +11.1% | +40.2% |
| WLKP | BUY | 2020-03-18 | 2020-03-19 | $11.68 | $373K | +15.6% | +20.3% | +50.7% |
| WLKP | BUY | 2020-03-17 | 2020-03-18 | $13.82 | $291K | +45.9% | +49.6% | +89.6% |
| WLKP | BUY | 2020-03-16 | 2020-03-17 | $14.15 | $213K | +34.4% | +26.1% | +72.8% |
| WLKP | BUY | 2020-03-13 | 2020-03-16 | $15.18 | $109K | +18.8% | +9.3% | +46.6% |
| WLK | SELL | 2020-02-21 | 2020-02-24 | $62.42 | $6.4M | -10.2% | -32.6% | -22.9% |
| WLKP | BUY | 2018-11-19 | 2018-11-20 | $23.24 | $483K | +0.9% | -7.2% | +2.2% |
| WLK | SELL | 2018-11-16 | 2018-11-19 | $71.76 | $3.5M | +6.1% | -8.7% | +12.7% |
| WLK | SELL | 2018-11-15 | 2018-11-16 | $71.20 | $1.7M | +1.1% | -8.5% | +9.5% |
| WLKP | BUY | 2018-11-15 | 2018-11-19 | $23.26 | $695K | -1.9% | -9.0% | -0.0% |
| WLK | SELL | 2018-11-14 | 2018-11-16 | $71.39 | $1.7M | +1.1% | -8.5% | +9.5% |
| WLK | SELL | 2018-11-14 | 2018-11-16 | $71.30 | $6.9M | +1.1% | -8.5% | +9.5% |
| WLKP | BUY | 2018-11-13 | 2018-11-15 | $23.32 | $821K | -1.2% | -8.3% | +0.0% |
| WLK | SELL | 2018-11-12 | 2018-11-14 | $73.47 | $2.9M | -2.9% | -8.6% | +9.3% |
| WLK | SELL | 2018-11-12 | 2018-11-14 | $75.10 | $518K | -2.9% | -8.6% | +9.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| Scored | 16 | 16 | 16 |