PAGEInsider
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| WLK | Chao James | Senior Chairman | Feb 17 '26 | Option Exercise | 0.00 | 10,382 | 0 | 50,123 | Feb 19 |
| WLKP | Chao James | Senior Chairman | May 29 '25 | Sale | 22.10 | 3,700 | 81,770 | 0 | May 30 |
| WLKP | Chao James | Senior Chairman | May 28 '25 | Sale | 22.10 | 4,600 | 101,660 | 3,700 | May 29 |
| WLKP | Chao James | Senior Chairman | May 27 '25 | Sale | 22.17 | 5,608 | 124,329 | 8,300 | May 29 |
| WLK | Chao James | Senior Chairman | Feb 18 '25 | Option Exercise | 0.00 | 8,796 | 0 | 47,347 | Feb 20 |
| WLK | Chao James | Chairman | Feb 19 '24 | Option Exercise | 0.00 | 10,774 | 0 | 94,787 | Feb 21 |
| WLK | Chao James | Chairman | Nov 30 '23 | Option Exercise | 74.52 | 102,772 | 7,658,382 | 130,612 | Dec 01 |
| WLK | Chao James | Chairman | Aug 31 '23 | Option Exercise | 69.90 | 244,591 | 17,096,977 | 365,231 | Sep 01 |
| WLK | Chao James | Chairman | Aug 30 '23 | Option Exercise | 54.12 | 60,112 | 3,253,452 | 150,696 | Aug 31 |
| WLKP | Chao James | Chairman | May 31 '22 | Sale | 26.87 | 29,092 | 781,615 | 25,908 | Jun 02 |
| WLKP | Chao James | director, 10 percent owner: | Nov 12 '18 | Buy | 22.77 | 10,000 | 227,700 | 55,000 | Nov 14 |
| WLKP | Chao James | director, 10 percent owner: | Dec 04 '17 | Buy | 22.17 | 8,473 | 187,846 | 8,473 | Dec 05 |
| WLKP | Chao James | director, 10 percent owner: | Aug 04 '14 | Buy | 0.73 | 1,481,115 | 1,080,000 | 1,436,115 | Aug 06 |