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| SEC Filing | Insider | Company | Trade Date | Transaction | Shares | Avg. Price | Total | % Holdings | Return |
|---|---|---|---|---|---|---|---|---|---|
| 01-Apr-24 6:26 AM View:  | Chao James Chairman Director | Westlake Chemical Corp. (WLK) | 28-Mar-24 | Gift | 36,632 | -- | -- | (45%) 81.83K to 45.19K | |
| 22-Mar-24 2:55 PM View: | Zoeller Johnathan Stevan VP and CAO | Westlake Chemical Corp. (WLK) | 21-Mar-24 | Disposition | 657 | $150.57 | $98,921.20 | (13%) 5.07K to 4.42K | |
| 22-Mar-24 2:55 PM View: | Zoeller Johnathan Stevan VP and CAO | Westlake Chemical Corp. (WLK) | 21-Mar-24 | Option Exercise | 657 | $100.00 | $65,698.60 | 15% 4.42K to 5.07K | 2% |
| 18-Mar-24 10:09 AM View: | Buesinger Robert F. EVP, HIP, IT & Digital | Westlake Chemical Corp. (WLK) | 15-Mar-24 | Private Sale | 3,878 | $144.50 | $560,371.00 | (15%) 25.02K to 21.14K | |
| 14-Mar-24 10:53 AM View: | Buesinger Robert F. EVP, HIP, IT & Digital | Westlake Chemical Corp. (WLK) | 13-Mar-24 | Private Sale | 122 | $144.50 | $17,629.00 | (< 1%) 25.14K to 25.02K | |
| 11-Mar-24 9:03 AM View: | Zoeller Johnathan Stevan VP and CAO | Westlake Chemical Corp. (WLK) | 08-Mar-24 | Disposition | 2,776 | $142.09 | $394,442.00 | (39%) 7.19K to 4.42K | |
| 11-Mar-24 9:03 AM View: | Zoeller Johnathan Stevan VP and CAO | Westlake Chemical Corp. (WLK) | 08-Mar-24 | Option Exercise | 2,776 | $105.93 | $294,050.00 | 63% 4.42K to 7.19K | (4%) |
| 11-Mar-24 9:38 AM View: | Buesinger Robert F. EVP, HIP, IT & Digital | Westlake Chemical Corp. (WLK) | 07-Mar-24 | Disposition | 12,670 | $142.55 | $1,806,110.00 | (34%) 37.81K to 25.14K | |
| 11-Mar-24 9:38 AM View: | Buesinger Robert F. EVP, HIP, IT & Digital | Westlake Chemical Corp. (WLK) | 07-Mar-24 | Option Exercise | 12,670 | $99.59 | $1,261,840.00 | 50% 25.14K to 37.81K | 2% |
| 07-Mar-24 8:32 AM View: | Bender Mark Steven EVP & CFO | Westlake Chemical Corp. (WLK) | 06-Mar-24 | Private Sale | 4,804 | $141.02 | $677,455.00 | (10%) 50.11K to 45.31K | |
| 28-Feb-24 12:04 PM View: | Bender Mark Steven EVP & CFO | Westlake Chemical Corp. (WLK) | 26-Feb-24 | Private Sale | 4,854 | $137.57 | $667,765.00 | (9%) 54.96K to 50.11K | |
| 21-Feb-24 10:31 AM View: | Zoeller Johnathan Stevan VP and CAO | Westlake Chemical Corp. (WLK) | 20-Feb-24 | Payment of Exercise | 746 | $130.67 | $97,481.70 | (14%) 5.16K to 4.42K | |
| 21-Feb-24 10:27 AM View: | Buesinger Robert F. EVP, HIP, IT & Digital | Westlake Chemical Corp. (WLK) | 20-Feb-24 | Payment of Exercise | 4,485 | $130.59 | $585,682.00 | (15%) 29.63K to 25.14K | |
| 21-Feb-24 10:29 AM View: | Ederington L. Benjamin EVP, PEM, GC and CAO | Westlake Chemical Corp. (WLK) | 20-Feb-24 | Payment of Exercise | 4,618 | $130.58 | $603,012.00 | (8%) 61.11K to 56.49K | |
| 21-Feb-24 10:28 AM View: | Chao Albert President & CEO Director | Westlake Chemical Corp. (WLK) | 20-Feb-24 | Payment of Exercise | 24,780 | $130.59 | $3,235,920.00 | (4%) 579.7K to 554.92K | |
| 21-Feb-24 10:28 AM View: | Chao James Chairman Director | Westlake Chemical Corp. (WLK) | 20-Feb-24 | Payment of Exercise | 12,962 | $130.55 | $1,692,210.00 | (14%) 94.79K to 81.83K | |
| 21-Feb-24 10:25 AM View: | Bender Mark Steven EVP & CFO | Westlake Chemical Corp. (WLK) | 20-Feb-24 | Payment of Exercise | 6,144 | $130.70 | $803,018.00 | (10%) 61.11K to 54.96K | |
| 21-Feb-24 10:30 AM View: | Janssens Thomas J. SVP, Ops - PEM & Corp Logistic | Westlake Chemical Corp. (WLK) | 20-Feb-24 | Payment of Exercise | 984 | $130.70 | $128,610.00 | (8%) 13.05K to 12.06K | |
| 21-Feb-24 10:25 AM View: | Bender Mark Steven EVP & CFO | Westlake Chemical Corp. (WLK) | 19-Feb-24 | Option Exercise | 5,558 | -- | -- | 10% 55.55K to 61.11K | |
| 21-Feb-24 10:30 AM View: | Janssens Thomas J. SVP, Ops - PEM & Corp Logistic | Westlake Chemical Corp. (WLK) | 19-Feb-24 | Option Exercise | 1,170 | -- | -- | 10% 11.88K to 13.05K | |
| 21-Feb-24 10:31 AM View: | Zoeller Johnathan Stevan VP and CAO | Westlake Chemical Corp. (WLK) | 19-Feb-24 | Option Exercise | 866 | -- | -- | 20% 4.3K to 5.16K | |
| 21-Feb-24 10:27 AM View: | Buesinger Robert F. EVP, HIP, IT & Digital | Westlake Chemical Corp. (WLK) | 19-Feb-24 | Option Exercise | 4,283 | -- | -- | 17% 25.35K to 29.63K | |
| 21-Feb-24 10:29 AM View: | Ederington L. Benjamin EVP, PEM, GC and CAO | Westlake Chemical Corp. (WLK) | 19-Feb-24 | Option Exercise | 4,388 | -- | -- | 8% 56.72K to 61.11K | |
| 21-Feb-24 10:28 AM View: | Chao Albert President & CEO Director | Westlake Chemical Corp. (WLK) | 19-Feb-24 | Option Exercise | 19,810 | -- | -- | 4% 559.89K to 579.7K | |
| 21-Feb-24 10:28 AM View: | Chao James Chairman Director | Westlake Chemical Corp. (WLK) | 19-Feb-24 | Option Exercise | 10,774 | -- | -- | 13% 84.01K to 94.79K | |
| 21-Feb-24 10:29 AM View: | Ederington L. Benjamin EVP, PEM, GC and CAO | Westlake Chemical Corp. (WLK) | 16-Feb-24 | Grant | 8,802 | -- | -- | 18% 47.92K to 56.72K | |
| 21-Feb-24 10:28 AM View: | Chao Albert President & CEO Director | Westlake Chemical Corp. (WLK) | 16-Feb-24 | Grant | 39,738 | -- | -- | 8% 520.15K to 559.89K | |
| 21-Feb-24 10:28 AM View: | Chao James Chairman Director | Westlake Chemical Corp. (WLK) | 16-Feb-24 | Grant | 21,614 | -- | -- | 35% 62.4K to 84.01K | |
| 21-Feb-24 10:31 AM View: | Zoeller Johnathan Stevan VP and CAO | Westlake Chemical Corp. (WLK) | 16-Feb-24 | Grant | 1,736 | -- | -- | 68% 2.56K to 4.3K | |
| 21-Feb-24 10:25 AM View: | Bender Mark Steven EVP & CFO | Westlake Chemical Corp. (WLK) | 16-Feb-24 | Grant | 11,150 | -- | -- | 25% 44.4K to 55.55K | |
| 21-Feb-24 10:30 AM View: | Janssens Thomas J. SVP, Ops - PEM & Corp Logistic | Westlake Chemical Corp. (WLK) | 16-Feb-24 | Grant | 2,346 | -- | -- | 25% 9.53K to 11.88K | |
| 21-Feb-24 10:27 AM View: | Buesinger Robert F. EVP, HIP, IT & Digital | Westlake Chemical Corp. (WLK) | 16-Feb-24 | Grant | 8,592 | -- | -- | 51% 16.75K to 25.35K | |
| 01-Dec-23 2:23 PM View: | Chao James Chairman Director 10% Owner | Westlake Chemical Corp. (WLK) | 30-Nov-23 | Option Exercise | 68,213 | $78.93 | $5,383,970.00 | < 1% 93.47M to 93.54M | |
| 01-Dec-23 2:23 PM View: | Chao James Chairman Director 10% Owner | Westlake Chemical Corp. (WLK) | 30-Nov-23 | Disposition | 68,213 | $128.49 | $8,764,960.00 | (< 1%) 93.54M to 93.47M | |
| 17-Nov-23 8:28 AM View: | Buesinger Robert F. EVP, HIP, IT & Digital | Westlake Chemical Corp. (WLK) | 15-Nov-23 | Private Sale | 4,215 | $130.50 | $550,058.00 | (20%) 20.97K to 16.75K | |
| 01-Sep-23 10:11 AM View: | Chao Albert President & CEO Director 10% Owner | Westlake Chemical Corp. (WLK) | 31-Aug-23 | Option Exercise | 19,988 | $63.98 | $1,278,780.00 | < 1% 93.93M to 93.95M | |
| 01-Sep-23 10:14 AM View: | Chao Catherine T. Director 10% Owner | Westlake Chemical Corp. (WLK) | 31-Aug-23 | Gift | 19,423 | -- | -- | < 1% 93.41M to 93.42M | |
| 01-Sep-23 10:15 AM View: | Chao David Tsung-Hung Director 10% Owner | Westlake Chemical Corp. (WLK) | 31-Aug-23 | Gift Duplicate | 19,423 | -- | -- | < 1% 93.41M to 93.42M | |
| 01-Sep-23 10:12 AM View: | Chao James Chairman Director 10% Owner | Westlake Chemical Corp. (WLK) | 31-Aug-23 | Disposition | 244,591 | $131.25 | $32,102,700.00 | (< 1%) 93.77M to 93.53M | |
| 01-Sep-23 10:12 AM View: | Chao James Chairman Director 10% Owner | Westlake Chemical Corp. (WLK) | 31-Aug-23 | Option Exercise | 244,591 | $69.90 | $17,097,000.00 | < 1% 93.53M to 93.77M | |
| 01-Sep-23 10:11 AM View: | Chao Albert President & CEO Director 10% Owner | Westlake Chemical Corp. (WLK) | 31-Aug-23 | Disposition | 19,988 | $131.53 | $2,629,030.00 | (< 1%) 93.95M to 93.93M | |
| 01-Sep-23 10:12 AM View: | Chao James Chairman Director 10% Owner | Westlake Chemical Corp. (WLK) | 31-Aug-23 | Gift | 58,268 | -- | -- | (< 1%) 93.53M to 93.47M | |
| 31-Aug-23 2:36 PM View: | Chao James Chairman Director 10% Owner | Westlake Chemical Corp. (WLK) | 30-Aug-23 | Disposition | 30,056 | $133.70 | $4,018,580.00 | (< 1%) 93.56M to 93.53M | |
| 31-Aug-23 2:36 PM View: | Chao James Chairman Director 10% Owner | Westlake Chemical Corp. (WLK) | 30-Aug-23 | Option Exercise | 30,056 | $54.12 | $1,626,730.00 | < 1% 93.53M to 93.56M | |
| 31-Aug-23 11:36 AM View: | Chao Albert President & CEO Director 10% Owner | Westlake Chemical Corp. (WLK) | 30-Aug-23 | Disposition | 20,000 | $134.15 | $2,682,970.00 | (< 1%) 93.43M to 93.41M | |
| 31-Aug-23 11:35 AM View: | Buesinger Robert F. EVP, HIP, IT & Digital | Westlake Chemical Corp. (WLK) | 30-Aug-23 | Option Exercise | 4,857 | $86.54 | $420,315.00 | 23% 20.97K to 25.83K | |
| 31-Aug-23 11:37 AM View: | Ederington L. Benjamin EVP, PEM, GC and CAO | Westlake Chemical Corp. (WLK) | 30-Aug-23 | Disposition | 13,734 | $134.27 | $1,844,020.00 | (22%) 61.65K to 47.92K | |
| 31-Aug-23 11:35 AM View: | Buesinger Robert F. EVP, HIP, IT & Digital | Westlake Chemical Corp. (WLK) | 30-Aug-23 | Disposition | 4,857 | $134.47 | $653,136.00 | (19%) 25.83K to 20.97K | |
| 31-Aug-23 11:36 AM View: | Chao Albert President & CEO Director 10% Owner | Westlake Chemical Corp. (WLK) | 30-Aug-23 | Option Exercise | 20,000 | $63.98 | $1,279,550.00 | < 1% 93.41M to 93.43M | |
| 31-Aug-23 11:37 AM View: | Ederington L. Benjamin EVP, PEM, GC and CAO | Westlake Chemical Corp. (WLK) | 30-Aug-23 | Option Exercise | 13,734 | $61.87 | $849,654.00 | 29% 47.92K to 61.65K |
