| 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 |
|---|---|---|---|---|---|---|---|---|---|
Over the past 90 days, insiders at Westlake Corporation (WLK) have been net sellers, shedding 38,873 shares worth roughly $3.1M on balance.
WLK sits in the Chemicals industry within the Materials sector, so this activity is best read against the sector's broader insider trend.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| Other | 681.8K | $42.18M | - | |
| CEO | 109.1K | - | - | |
| VP | 80.2K | $7.54M | - | |
| CFO | 35.9K | $3.49M | - | |
| VP | 34.5K | $3.97M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | Chao Albert47 | Executive Chairman | Sale+OE | 38,873 | $80.28 | $3,120,774.58 | -5.7% | - | - | |
| Mar 27, 2026 | Buesinger Robert F.60 | EVP, Pem Segment Head | Sell | 4,000 | $115.25 | $461,000.00 | -10.4% | -32.4% | - | |
| Mar 27, 2026 | Bender Mark Steven67 | EVP &CFO | Sell | 16,413 | $112.54 | $1,847,036.95 | -36.9% | -32.4% | - | |
| Feb 27, 2026 | Bender Mark Steven67 | EVP &CFO | Sale+OE | 17,409 | $100.92 | $1,756,996.89 | -28.2% | -16.8% | - | |
| Dec 22, 2025 | Chao Albert47 | Executive Chairman | Sale+OE | 40,836 | $73.57 | $3,004,373.18 | -6.1% | +45.9% | - | |
| May 27, 2025 | Buesinger Robert F.60 | EVP, Pem Segment Head | Sell | 83 | $72.70 | $6,034.10 | -100% | +20.0% | +20.8% | |
| Apr 22, 2025 | Buesinger Robert F.60 | 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.60 | EVP, Hip, It &Digital | Sell | 3,500 | $158.50 | $554,750.00 | -16.6% | -8.8% | -49.1% |