| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Westlake Corporation (WLK) has 20 insiders with recent SEC Form 4 filings, including 1 buy and 12 sells. WLK is classified in the Chemicals industry within the Materials sector.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| Other | 642.9K | $62.60M | - | |
| CEO | 109.1K | $10.63M | - | |
| VP | 80.2K | $7.81M | - | |
| VP | 34.5K | $3.36M | - | |
| VP | 13.8K | $1.34M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 27, 2026 | Buesinger Robert F.61 | EVP, Pem Segment Head | Sell | 4,000 | $115.25 | $461,000.00 | -10.4% | - | - | |
| Feb 27, 2026 | Bender Mark Steven66 | EVP &CFO | Sale+OE | 17,409 | $100.92 | $1,756,996.89 | -16.3% | - | - | |
| Dec 22, 2025 | Chao Albert47 | Executive Chairman | Sale+OE | 40,836 | $73.57 | $3,004,373.19 | -2.1% | +45.9% | - | |
| May 27, 2025 | Buesinger Robert F.61 | EVP, Pem Segment Head | Sell | 83 | $72.70 | $6,034.10 | -100% | +20.0% | - | |
| Apr 22, 2025 | Buesinger Robert F.61 | EVP, Pem Segment Head | Buy | 83 | $93.39 | $7,751.37 | New | -12.2% | - | |
| Nov 29, 2024 | Chao David Tsung-Hung63 | Director | Sell | 1,750 | $129.08 | $225,888.25 | -18.4% | -14.0% | -48.0% | |
| Nov 22, 2024 | Chao David Tsung-Hung63 | Director | Sell | 1,750 | $130.00 | $227,500.00 | -15.5% | -14.6% | -54.7% | |
| May 9, 2024 | Buesinger Robert F.61 | EVP, Hip, It &Digital | Sell | 3,500 | $158.50 | $554,750.00 | -16.6% | -8.8% | -49.1% | |
| May 3, 2024 | Bender Mark Steven66 | EVP &CFO | Sell | 4,950 | $152.19 | $753,340.50 | -10.9% | -5.5% | -47.6% | |
| Mar 15, 2024 | Buesinger Robert F.61 | EVP, Hip, It &Digital | Sell | 3,878 | $144.50 | $560,371.00 | -15.5% | +4.4% | -26.9% |