WESTLAKE CORP — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Buesinger Robert F. | EVP, Vinyl Products | Tax Withholding | 918 | $60.52 | $55,557 | 10,569 | Feb 17, 2020 |
| Bender Mark Steven | EVP and CFO | Tax Withholding | 1,457 | $60.52 | $88,178 | 29,482 | Feb 17, 2020 |
| Ederington L. Benjamin | SVP, GC, CAO and Secretary | Option Exercise | 8,324 | — | — | 23,671 | Dec 1, 2019 |
| Teel Lawrence E. | EVP, Olefins | Tax Withholding | 675 | $66.01 | $44,557 | 5,388 | Dec 1, 2019 |
| Mangieri George J | SVP & Chief Accounting Officer | Tax Withholding | 1,023 | $67.01 | $68,551 | 3,889 | Dec 1, 2019 |
| Kenner Andrew | SVP - Chemical Manufacturing | Tax Withholding | 1,350 | $67.01 | $90,464 | 15,468 | Dec 1, 2019 |
| Buesinger Robert F. | EVP, Vinyl Products | Tax Withholding | 2,025 | $67.01 | $135,695 | 8,181 | Dec 1, 2019 |
| Bender Mark Steven | EVP and CFO | Tax Withholding | 3,374 | $67.01 | $226,092 | 25,564 | Dec 1, 2019 |
| Mangieri George J | SVP & Chief Accounting Officer | Sale | 1,583 | $75.05 | $118,804 | 1,582 | Nov 8, 2019 |
| Jenkins Dorothy C | — | Option Exercise | 7,098 | $12.26 | $87,021 | 67,618 | Aug 20, 2019 |
| Sheets Jeffrey Wayne | — | Option Exercise | 1,409 | — | — | 2,499 | Aug 17, 2019 |
| NORTHCUTT R BRUCE | — | Option Exercise | 1,003 | — | — | 9,514 | Aug 17, 2019 |
| MCCOLLUM MARK A | — | Option Exercise | 1,409 | — | — | 2,396 | Aug 17, 2019 |
| LUKENS MAX L | — | Option Exercise | 1,003 | — | — | 7,713 | Aug 17, 2019 |
| Jenkins Dorothy C | — | Option Exercise | 1,409 | — | — | 60,520 | Aug 17, 2019 |
| Haas Marius | — | Option Exercise | 1,409 | — | — | 2,499 | Aug 17, 2019 |
| Graff Michael J | — | Option Exercise | 1,409 | — | — | 10,882 | Aug 17, 2019 |
| Chao John Tsung-chen | — | Option Exercise | 1,409 | — | — | 1,409 | Aug 17, 2019 |
| Chao David Tsung-Hung | — | Option Exercise | 1,409 | — | — | 3,152 | Aug 17, 2019 |
| NORTHCUTT R BRUCE | — | Option Exercise | 144 | — | — | 8,511 | May 18, 2019 |
| MCCOLLUM MARK A | — | Option Exercise | 987 | — | — | 987 | May 18, 2019 |
| LUKENS MAX L | — | Option Exercise | 103 | — | — | 6,710 | May 18, 2019 |
| Jenkins Dorothy C | — | Option Exercise | 103 | — | — | 58,108 | May 18, 2019 |
| Graff Michael J | — | Option Exercise | 103 | — | — | 8,470 | May 18, 2019 |
| Kearns Roger L. | EVP, Vinyls Chemicals | Option Exercise | 9,224 | — | — | 9,224 | Apr 30, 2019 |
| RILEY H JOHN JR | — | Sale | 3,327 | $69.92 | $232,624 | 22,652 | Mar 19, 2019 |
| Teel Lawrence E. | EVP, Olefins | Tax Withholding | 786 | $73.29 | $57,606 | 4,473 | Feb 19, 2019 |
| Buesinger Robert F. | EVP, Vinyl Products | Option Exercise | 3,539 | — | — | 6,181 | Feb 19, 2019 |
| Bender Mark Steven | EVP and CFO | Tax Withholding | 152 | $75.83 | $11,526 | 20,614 | Feb 19, 2019 |
| Mangieri George J | SVP & Chief Accounting Officer | Tax Withholding | 399 | $73.29 | $29,243 | 3,202 | Feb 18, 2019 |
| Kenner Andrew | SVP - Chemical Manufacturing | Tax Withholding | 725 | $73.29 | $53,135 | 13,556 | Feb 18, 2019 |
| Ederington L. Benjamin | SVP, GC, CAO and Secretary | Option Exercise | 3,302 | — | — | 15,347 | Feb 18, 2019 |
| Chao James | Chairman | Tax Withholding | 4,861 | $73.29 | $356,263 | 63,785 | Feb 18, 2019 |
| Chao Albert | President & CEO | Tax Withholding | 6,547 | $73.29 | $479,830 | 339,561 | Feb 18, 2019 |
| Sheets Jeffrey Wayne | — | Option Exercise | 1,090 | — | — | 1,090 | Jan 5, 2019 |
| Haas Marius | — | Option Exercise | 1,090 | — | — | 1,090 | Jan 5, 2019 |
| Chao David Tsung-Hung | — | Option Exercise | 1,090 | — | — | 1,743 | Jan 5, 2019 |
| Chao Albert | President & CEO | Sale | 17,389 | $71.62 | $1,245,400 | 331,774 | Nov 16, 2018 |
| Chao Albert | President & CEO | Option Exercise | 30,639 | $7.12 | $218,150 | 337,013 | Nov 15, 2018 |
| Chao Albert | President & CEO | Sale | 3,600 | $72.47 | $260,892 | 307,574 | Nov 13, 2018 |
| RILEY H JOHN JR | — | Option Exercise | 603 | — | — | 25,979 | Aug 21, 2018 |
| NORTHCUTT R BRUCE | — | Option Exercise | 603 | — | — | 8,367 | Aug 21, 2018 |
| LUKENS MAX L | — | Option Exercise | 603 | — | — | 6,607 | Aug 21, 2018 |
| Graff Michael J | — | Option Exercise | 603 | — | — | 8,367 | Aug 21, 2018 |
| BLAKELY ROBERT T | — | Option Exercise | 603 | — | — | 10,989 | Aug 21, 2018 |
| Jenkins Dorothy C | — | Option Exercise | 603 | — | — | 58,005 | Aug 21, 2018 |
| NORTHCUTT R BRUCE | — | Option Exercise | 1,003 | — | — | 6,043 | Aug 18, 2018 |
| Jenkins Dorothy C | — | Option Exercise | 1,003 | — | — | 55,681 | Aug 18, 2018 |
| RILEY H JOHN JR | — | Option Exercise | 1,721 | — | — | 25,376 | Aug 17, 2018 |
| LUKENS MAX L | — | Option Exercise | 1,721 | — | — | 6,004 | Aug 17, 2018 |