Buesinger F. Robert's most recent trade in Westlake Corporation was a trade of 83 Common Stock done at an average price of $93.4 . Disclosure was reported to the exchange on April 22, 2025.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Westlake Corporation | Robert F. Buesinger | EVP, PEM Segment Head | Purchase of securities on an exchange or from another person at price $ 93.39 per share. | 22 Apr 2025 | 83 | 83 (0%) | 0% | 93.4 | 7,751 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, PEM Segment Head | Sale of securities on an exchange or to another person at price $ 72.70 per share. | 22 Apr 2025 | 83 | 0 (0%) | 0% | 72.7 | 6,034 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, PEM | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 11 Apr 2025 | 17,101 | 17,101 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 20 Feb 2025 | 13,141 | 13,141 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 20 Feb 2025 | 6,839 | 37,670 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 20 Feb 2025 | 4,356 | 4,356 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.54 per share. | 20 Feb 2025 | 2,738 | 34,932 (0%) | 0% | 110.5 | 302,659 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 18 Feb 2025 | 12,923 | 0 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 18 Feb 2025 | 12,923 | 34,846 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 111.46 per share. | 18 Feb 2025 | 3,851 | 30,995 (0%) | 0% | 111.5 | 429,232 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 112.76 per share. | 18 Feb 2025 | 164 | 30,831 (0%) | 0% | 112.8 | 18,493 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 13 Aug 2024 | 7,051 | 24,695 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 13 Aug 2024 | 7,051 | 0 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 145.44 per share. | 13 Aug 2024 | 2,772 | 21,923 (0%) | 0% | 145.4 | 403,160 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale of securities on an exchange or to another person at price $ 158.50 per share. | 09 May 2024 | 3,500 | 17,644 (0%) | 0% | 158.5 | 554,750 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 122.65 per share. | 07 May 2024 | 3,133 | 24,277 (0%) | 0% | 122.6 | 384,262 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale or transfer of securities back to the company at price $ 157.50 per share. | 07 May 2024 | 3,133 | 21,144 (0%) | 0% | 157.5 | 493,448 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 07 May 2024 | 3,133 | 6,362 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale of securities on an exchange or to another person at price $ 144.50 per share. | 15 Mar 2024 | 3,878 | 21,144 (0%) | 0% | 144.5 | 560,371 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale of securities on an exchange or to another person at price $ 144.50 per share. | 13 Mar 2024 | 122 | 25,022 (0%) | 0% | 144.5 | 17,629 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale or transfer of securities back to the company at price $ 142.55 per share. | 07 Mar 2024 | 12,670 | 25,144 (0%) | 0% | 142.6 | 1,806,109 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 108.12 per share. | 07 Mar 2024 | 7,665 | 37,814 (0%) | 0% | 108.1 | 828,721 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 07 Mar 2024 | 7,665 | 3,950 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 07 Mar 2024 | 5,005 | 0 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 86.54 per share. | 07 Mar 2024 | 5,005 | 30,149 (0%) | 0% | 86.5 | 433,122 | Common Stock |
| Westlake Corporation | Buesinger F. Robert | EVP, HIP, IT & Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 16 Feb 2024 | 8,592 | 25,346 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Buesinger F. Robert | SVP, Ops - PEM & Corp Logistic | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 16 Feb 2024 | 8,509 | 8,509 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Buesinger F. Robert | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 16 Feb 2024 | 4,283 | 29,629 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Robert Buesinger F. | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 16 Feb 2024 | 4,283 | 0 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 129.92 per share. | 16 Feb 2024 | 4,083 | 25,546 (0%) | 0% | 129.9 | 530,463 | Common Stock |
| Westlake Corporation | Buesinger F. Robert | SVP, Ops - PEM & Corp Logistic | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 16 Feb 2024 | 3,073 | 3,073 | - | - | Restricted Stock Units | |
| Westlake Corporation | Buesinger F. Robert | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 137.38 per share. | 16 Feb 2024 | 399 | 25,144 (0%) | 0% | 137.4 | 54,813 | Common Stock |
| Westlake Corporation | Robert Buesinger F. | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 135.33 per share. | 16 Feb 2024 | 3 | 25,543 (0%) | 0% | 135.3 | 406 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale of securities on an exchange or to another person at price $ 130.50 per share. | 15 Nov 2023 | 4,215 | 16,754 (0%) | 0% | 130.5 | 550,058 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 30 Aug 2023 | 4,857 | 0 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale or transfer of securities back to the company at price $ 134.47 per share. | 30 Aug 2023 | 4,857 | 20,969 (0%) | 0% | 134.5 | 653,136 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 86.54 per share. | 30 Aug 2023 | 4,857 | 25,826 (0%) | 0% | 86.5 | 420,315 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 29 Aug 2023 | 8,100 | 0 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale or transfer of securities back to the company at price $ 133.83 per share. | 29 Aug 2023 | 8,100 | 20,969 (0%) | 0% | 133.8 | 1,084,024 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 65.81 per share. | 29 Aug 2023 | 8,100 | 29,069 (0%) | 0% | 65.8 | 533,081 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 12 May 2023 | 13,164 | 13,164 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 17 Feb 2023 | 11,298 | 25,721 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 17 Feb 2023 | 9,495 | 9,495 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 104.32 per share. | 17 Feb 2023 | 4,512 | 21,209 (0%) | 0% | 104.3 | 470,692 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 17 Feb 2023 | 3,478 | 3,478 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 105.27 per share. | 17 Feb 2023 | 240 | 20,969 (0%) | 0% | 105.3 | 25,265 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 14 Feb 2023 | 5,632 | 15,840 (0%) | 0% | - | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 14 Feb 2023 | 5,632 | 0 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 121.86 per share. | 14 Feb 2023 | 1,397 | 14,443 (0%) | 0% | 121.9 | 170,238 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 122.40 per share. | 14 Feb 2023 | 20 | 14,423 (0%) | 0% | 122.4 | 2,448 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale of securities on an exchange or to another person at price $ 98.94 per share. | 31 Aug 2022 | 1,000 | 10,208 (0%) | 0% | 98.9 | 98,940 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Gift of securities by or to the insider at price $ 0.00 per share. | 23 Aug 2022 | 572 | 11,208 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale of securities on an exchange or to another person at price $ 129.47 per share. | 27 May 2022 | 14,427 | 11,780 (0%) | 0% | 129.5 | 1,867,820 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 27 May 2022 | 9,571 | 0 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 107.75 per share. | 27 May 2022 | 9,571 | 21,351 (0%) | 0% | 107.7 | 1,031,275 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 86.54 per share. | 27 May 2022 | 4,856 | 26,207 (0%) | 0% | 86.5 | 420,228 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 27 May 2022 | 4,856 | 9,862 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Gift of securities by or to the insider at price $ 0.00 per share. | 15 Mar 2022 | 500 | 11,780 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale of securities on an exchange or to another person at price $ 117.61 per share. | 10 Mar 2022 | 22,555 | 14,839 (0%) | 0% | 117.6 | 2,652,694 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 79.83 per share. | 10 Mar 2022 | 14,694 | 29,533 (0%) | 0% | 79.8 | 1,173,022 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 10 Mar 2022 | 14,694 | 0 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 10 Mar 2022 | 7,861 | 8,100 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Exercise or conversion of derivative security received from the company (such as an option) at price $ 65.81 per share. | 10 Mar 2022 | 7,861 | 37,394 (0%) | 0% | 65.8 | 517,352 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Sale of securities on an exchange or to another person at price $ 115.55 per share. | 09 Mar 2022 | 2,730 | 14,839 (0%) | 0% | 115.6 | 315,452 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT and Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 18 Feb 2022 | 12,923 | 12,923 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT and Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 18 Feb 2022 | 11,615 | 11,615 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 18 Feb 2022 | 6,446 | 17,569 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 18 Feb 2022 | 6,446 | 17,569 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 118.51 per share. | 18 Feb 2022 | 2,556 | 12,283 (0%) | 0% | 118.5 | 302,912 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, HIP, IT & Digital | Payment of exercise price or tax liability using portion of securities received from the company at price $ 120.33 per share. | 18 Feb 2022 | 3 | 12,280 (0%) | 0% | 120.3 | 361 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 15 Feb 2022 | 3,869 | 12,086 (0%) | 0% | - | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 15 Feb 2022 | 3,869 | 0 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Payment of exercise price or tax liability using portion of securities received from the company at price $ 104.96 per share. | 15 Feb 2022 | 963 | 11,123 (0%) | 0% | 105.0 | 101,076 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 13 Aug 2021 | 7,051 | 7,051 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Sale of securities on an exchange or to another person at price $ 105.00 per share. | 10 May 2021 | 5,000 | 8,217 (0%) | 0% | 105 | 525,000 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Gift of securities by or to the insider at price $ 0.00 per share. | 18 Mar 2021 | 82 | 13,217 (0%) | 0% | 0 | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Sale of securities on an exchange or to another person at price $ 92.50 per share. | 08 Mar 2021 | 8,652 | 21,160 (0%) | 0% | 92.5 | 800,310 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 08 Mar 2021 | 8,652 | 0 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 61.87 per share. | 08 Mar 2021 | 8,652 | 21,951 (0%) | 0% | 61.9 | 535,256 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 08 Mar 2021 | 7,861 | 15,961 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Sale of securities on an exchange or to another person at price $ 95.00 per share. | 08 Mar 2021 | 7,861 | 13,299 (0%) | 0% | 95 | 746,795 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 65.81 per share. | 08 Mar 2021 | 7,861 | 29,812 (0%) | 0% | 65.8 | 517,352 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 19 Feb 2021 | 14,718 | 14,718 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 19 Feb 2021 | 4,283 | 4,283 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 16 Feb 2021 | 2,569 | 13,940 (0%) | 0% | - | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 16 Feb 2021 | 2,569 | 0 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Payment of exercise price or tax liability using portion of securities received from the company at price $ 85.08 per share. | 16 Feb 2021 | 641 | 13,299 (0%) | 0% | 85.1 | 54,536 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 14 Feb 2021 | 1,128 | 11,697 (0%) | 0% | - | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 14 Feb 2021 | 1,128 | 11,697 (0%) | 0% | - | Common Stock | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 14 Feb 2021 | 1,128 | 0 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 14 Feb 2021 | 1,128 | 0 | - | - | Restricted Stock Units | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Payment of exercise price or tax liability using portion of securities received from the company at price $ 85.73 per share. | 14 Feb 2021 | 322 | 11,375 (0%) | 0% | 85.7 | 27,605 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Payment of exercise price or tax liability using portion of securities received from the company at price $ 85.73 per share. | 14 Feb 2021 | 322 | 11,375 (0%) | 0% | 85.7 | 27,605 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Payment of exercise price or tax liability using portion of securities received from the company at price $ 87.50 per share. | 14 Feb 2021 | 4 | 11,371 (0%) | 0% | 87.5 | 350 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Payment of exercise price or tax liability using portion of securities received from the company at price $ 87.50 per share. | 14 Feb 2021 | 4 | 11,371 (0%) | 0% | 87.5 | 350 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 44.42 per share. | 24 Nov 2020 | 4,581 | 15,150 (0%) | 0% | 44.4 | 203,488 | Common Stock |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 24 Nov 2020 | 4,581 | 0 | - | - | Employee Option (right to buy) | |
| Westlake Corporation | Robert F. Buesinger | EVP, Vinyl Products | Sale of securities on an exchange or to another person at price $ 77.50 per share. | 24 Nov 2020 | 4,581 | 10,569 (0%) | 0% | 77.5 | 355,028 | Common Stock |