Bender Mark Steven's Form 4 filing
Westlake Corp (WLK) · filed Mar 2, 2026
- Accession no.
- 0001193125-26-084672
- Filed
- Mar 2, 2026
- Trade date
- Feb 27, 2026
- Filing delay
- 3 days
- Rule 10b5-1 plan
- Not checked
This filing lists 5 non-derivative transactions and 2 derivative transactions. Open-market sales total $1.76M. It was filed 3 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Bender Mark StevenCIK 0001330417 | Officer (EVP & CFO) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Feb 27, 2026 | Common Stock | MOption exerciseAcquired | +6,199 | $65.81 | +$407,956.19 | 68,041 | Direct | |
| Feb 27, 2026 | Common Stock | MOption exerciseAcquired | +6,494 | $86.54 | +$561,990.76 | 74,535 | Direct | |
| Feb 27, 2026 | Common Stock | DReturned to the companyDisposed | −12,693 | $98.20 | −$1,246,452.6 | 61,842 | Direct | |
| Feb 27, 2026 | Common Stock | SSaleDisposed | −16,988 | $100.91 | −$1,714,259.08 | 44,854 | Direct | |
| Feb 27, 2026 | Common Stock | SSaleDisposed | −421 | $101.52 | −$42,739.92 | 44,433 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Feb 27, 2026 | Common Stock | MOption exerciseDisposed | −6,199 | $0.00 | $0 | 0 | Direct | |
| Feb 27, 2026 | Common Stock | MOption exerciseDisposed | −6,494 | $0.00 | $0 | 0 | Direct |
Footnotes
Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.