WLK Insider Activity
View recent SEC Form 4 insider transactions for WLK, including purchases, sales, option exercises, and other insider filings.
| Date | Insider | Type | Quantity | Price | Total Value | Shares Owned |
|---|---|---|---|---|---|---|
| Aug 11, 2026 | Chao Albert | Sale | 31,384 | $80.42 | $2,523,901.28 | 642,880 |
| Aug 11, 2026 | Chao Albert | Sale | 7,489 | $79.70 | $596,873.30 | 674,264 |
| Aug 11, 2026 | Chao Albert | Exercise | 38,873 | $61.87 | $2,404,878.15 | 681,753 |
| Aug 08, 2026 | Chao Catherine T. | Exercise | 2,168 | $0.00 | $0.00 | 7,748 |
| Aug 08, 2026 | Chao David Tsung-Hung | Exercise | 2,168 | $0.00 | $0.00 | 11,080 |
| Aug 08, 2026 | CREGG ROGER A | Exercise | 2,168 | $0.00 | $0.00 | 3,507 |
| Aug 08, 2026 | Graff Michael J | Exercise | 2,168 | $0.00 | $0.00 | 23,310 |
| Aug 08, 2026 | Lubel Kimberly S | Exercise | 2,168 | $0.00 | $0.00 | 13,821 |
| Aug 08, 2026 | MCCOLLUM MARK A | Exercise | 2,168 | $0.00 | $0.00 | 11,824 |
| Aug 08, 2026 | NORTHCUTT R BRUCE | Exercise | 2,168 | $0.00 | $0.00 | 23,351 |
| Aug 08, 2026 | Sabat Carolyn Chao | Exercise | 2,168 | $0.00 | $0.00 | 5,748 |
| Aug 08, 2026 | Sheets Jeffrey Wayne | Exercise | 2,168 | $0.00 | $0.00 | 14,927 |
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