WLK
WESTLAKE CORP
WESTLAKE CORP (WLK) has 5 SEC Form 4 filings (10 transaction rows) in the rolling window, disclosed by 2 distinct insiders. Most recent filing: May 14, 2026.
Insiders have net sold $4.1M over the trailing 6 months.
- Industry:Chemicals - Specialty
- CEO:Jean-Marc Gilson
- Employees:15,540
- HQ:Houston, TX, US
- IPO:2004-08-12
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$4.1M
reported sales (SEC code S)
Unique Insiders
2
in the rolling window
Market Cap
$9.2B
latest known value
| Source | ||||||
|---|---|---|---|---|---|---|
Buesinger Robert F.First filing | EVP, PEM Segment Head | Sale | 4,000 | $461K | Mar 31 | SEC ↗ |
| EVP & CFO | Sale | 16,413 | $1.8M | Mar 30 | SEC ↗ | |
Bender Mark StevenFirst filing | EVP & CFO | Sale | 17,409 | $1.8M | Mar 2 | SEC ↗ |
Related companies
WESTLAKE CORP is in the Manufacturing sector.