Company · CIK 0001262823 · SIC 2860 — Industrial Organic Chemicals · NYSE
WESTLAKE CORP · WLK
Insider activity reported against this company. All insider holders · Files at: WLKP. On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 11, 2026 SForm 4 → | Aug 11, 5:45 pm EDT | Albert ChaoExecutive Chairman, Director | 38,873 | $80.28 | $3,120,775 | 642,880 | −5.70% | |
| Aug 11, 2026 MForm 4 → | Aug 11, 5:45 pm EDT | Albert ChaoExecutive Chairman, Director | 38,873 | $61.87 | $2,404,878 | 681,753 | — | |
| Aug 8, 2026 MForm 4 → | Aug 10, 1:54 pm EDT | Jeffrey Wayne SheetsDirector | 2,168 | — | — | 14,927 | — | |
| Aug 8, 2026 MForm 4 → | Aug 10, 1:53 pm EDT | Carolyn Chao SabatDirector | 2,168 | — | — | 5,748 | — | |
| Aug 8, 2026 MForm 4 → | Aug 10, 1:53 pm EDT | R Bruce NorthcuttDirector | 2,168 | — | — | 23,351 | — | |
| Aug 8, 2026 MForm 4 → | Aug 10, 1:52 pm EDT | Mark A McCollumDirector | 2,168 | — | — | 11,824 | — | |
| Aug 8, 2026 MForm 4 → | Aug 10, 1:52 pm EDT | Kimberly S LubelDirector | 2,168 | — | — | 13,821 | — | |
| Aug 8, 2026 MForm 4 → | Aug 10, 1:51 pm EDT | Michael J GraffDirector | 2,168 | — | — | 23,310 | — | |
| Aug 8, 2026 MForm 4 → | Aug 10, 1:51 pm EDT | Roger A CreggDirector | 2,168 | — | — | 3,507 | — | |
| Aug 8, 2026 MForm 4 → | Aug 10, 1:50 pm EDT | David Tsung-Hung ChaoDirector | 2,168 | — | — | 11,080 | — | |
| Aug 8, 2026 MForm 4 → | Aug 10, 1:50 pm EDT | Catherine T. ChaoDirector | 2,168 | — | — | 7,748 | — |
Reported at this company — derivatives (options, RSUs, warrants)
Filed by this entity as an insider elsewhere — common stock
No reported common-stock activity in this period.
Filed by this entity as an insider elsewhere — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.