Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| WESTLAKE CORPWLK · Entity 3555 | EVP & CFO | May 12, 2026 | May 14, 2026 |
| Westlake Chemical Partners LPWLKP · Entity 5149 | Director · SVP, CFO | March 12, 2020 | March 16, 2020 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
WESTLAKE CORP
Report date May 12, 2026 · Filed May 14, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 35,895 |
Ending reported balance
After 2026-05-13 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2026-05-12 · Exercise / conversion · Acquired 13,164 · Balance 41,179 F1: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. Row 2 · 2026-05-13 · Tax withholding · Disposed 5,284 · Balance 35,895 F3: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs. |
| Restricted Stock UnitsSEC Table II · derivative / convertible security | Direct | 0 |
Reported balance
After 2026-05-12 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-05-12 · Exercise / conversion · Disposed 13,164 · Balance 0 F1: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. F2: On May 12, 2023, the reporting person was granted 13,164 RSUs vesting on the third anniversay of the grant date. |
Filing footnotes · ownership attribution and instrument terms
F1: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.
F2: On May 12, 2023, the reporting person was granted 13,164 RSUs vesting on the third anniversay of the grant date.
F3: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs.
Westlake Chemical Partners LP
Report date March 12, 2020 · Filed March 16, 2020
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common Units (Limited Partner Interests)SEC Table I · non-derivative | Direct | 14,000 |
Ending reported balance
After 2020-03-13 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2020-03-12 · Purchase · Acquired 1,000 · Balance 13,000 Row 2 · 2020-03-13 · Purchase · Acquired 1,000 · Balance 14,000 |
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| May 13, 2026 Filed May 14, 2026 16:33 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 5,284 | $97.34 | $514,344.56 |
DisclosureSEC source: 0001193125-26-223323 · ownership.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 35,895 F3 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs. Read SEC document |
| May 12, 2026 Filed May 14, 2026 16:33 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 13,164 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-223323 · ownership.xml · derivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 13,164 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. F2 · derivative.exercise_date: On May 12, 2023, the reporting person was granted 13,164 RSUs vesting on the third anniversay of the grant date. F2 · derivative.expiration_date: On May 12, 2023, the reporting person was granted 13,164 RSUs vesting on the third anniversay of the grant date. Read SEC document |
| May 12, 2026 Filed May 14, 2026 16:33 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 13,164 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-223323 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 41,179 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. Read SEC document |
| March 27, 2026 Filed Mar 30, 2026 20:10 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 16,413 | $112.54 | $1,847,036.96 |
DisclosureSEC source: 0001193125-26-131706 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 28,015 F1 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $112.33 to $112.99 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Read SEC document |
| February 27, 2026 Filed Mar 2, 2026 16:35 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 6,494 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC source: 0001193125-26-084672 · ownership.xml · derivative · entry 7 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 6,494 shares Expires 2031-02-19 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 19, 2022, 2023 and 2024, respectively. Read SEC document |
| February 27, 2026 Filed Mar 2, 2026 16:35 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 6,199 | $0.00 Strike: $65.81 | $0.00 |
DisclosureSEC source: 0001193125-26-084672 · ownership.xml · derivative · entry 6 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 6,199 shares Expires 2030-02-14 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: The stock options are exercisable in three installments of 33%. 33% and 34% on February 14, 2021, 2022 and 2023, respectively. Read SEC document |
| February 27, 2026 Filed Mar 2, 2026 16:35 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 421 | $101.52 | $42,737.82 |
DisclosureSEC source: 0001193125-26-084672 · ownership.xml · nonDerivative · entry 5 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 44,433 Read SEC document |
| February 27, 2026 Filed Mar 2, 2026 16:35 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 16,988 | $100.91 | $1,714,259.08 |
DisclosureSEC source: 0001193125-26-084672 · ownership.xml · nonDerivative · entry 4 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 44,854 F1 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $100.38 to $101.36 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Read SEC document |
| February 27, 2026 Filed Mar 2, 2026 16:35 UTC | WESTLAKE CORP WLK · Entity 3555 | Disposition to issuerCommon Stock | 12,693 | $98.20 | $1,246,452.60 |
DisclosureSEC source: 0001193125-26-084672 · ownership.xml · nonDerivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 61,842 Read SEC document |
| February 27, 2026 Filed Mar 2, 2026 16:35 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 6,494 | $86.54 | $561,977.12 |
DisclosureSEC source: 0001193125-26-084672 · ownership.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 74,535 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| February 27, 2026 Filed Mar 2, 2026 16:35 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 6,199 | $65.81 | $407,971.69 |
DisclosureSEC source: 0001193125-26-084672 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 68,041 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| February 20, 2026 Filed Feb 23, 2026 19:42 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 7,747 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-063686 · ownership.xml · derivative · entry 4 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,747 Underlying: Common Stock · 7,747 shares Expires not disclosed F5 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock. F6 · derivative.exercise_date: All of the RSUs will vest on February 20, 2029. F6 · derivative.expiration_date: All of the RSUs will vest on February 20, 2029. Read SEC document |
| February 20, 2026 Filed Feb 23, 2026 19:42 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantEmployee Option (right to buy) · Derivative | 28,389 | $0.00 Strike: $94.48 | $0.00 |
DisclosureSEC source: 0001193125-26-063686 · ownership.xml · derivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 28,389 Underlying: Common Stock · 28,389 shares Expires 2036-02-20 F4 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2027, 2028 and 2029, respectively. Read SEC document |
| February 20, 2026 Filed Feb 23, 2026 19:42 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 445 | $94.10 | $41,874.06 |
DisclosureSEC source: 0001193125-26-063686 · ownership.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 61,842 F2 · shares: Shares otherwise issuable were witheld to satisfy tax obligations arising out of vesting of the Reporting Person's PSUs. F3 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $93.98 to $94.10, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Read SEC document |
| February 19, 2026 Filed Feb 23, 2026 19:42 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantCommon Stock | 1,777 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-063686 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 62,287 F1 · shares: Represents shares of common stock that vested on February 19, 2026, upon the determination by the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance stock units ("PSUs") granted to the Reporting Person on February 17, 2023, under the terms of the Issuer's 2013 Omnibus Incentive Plan. Read SEC document |
| February 18, 2026 Filed Feb 19, 2026 20:18 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 1,209 | $98.95 | $119,630.55 |
DisclosureSEC source: 0001193125-26-059207 · ownership.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,510 F3 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs. Read SEC document |
| February 17, 2026 Filed Feb 19, 2026 20:18 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 4,751 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-059207 · ownership.xml · derivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 4,751 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. F2 · derivative.exercise_date: On February 17, 2023, the reporting person was granted 4,751 RSUs vesting on the third anniversay of the grant date. F2 · derivative.expiration_date: On February 17, 2023, the reporting person was granted 4,751 RSUs vesting on the third anniversay of the grant date. Read SEC document |
| February 17, 2026 Filed Feb 19, 2026 20:18 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 4,751 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-059207 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 61,719 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. Read SEC document |
| February 21, 2025 Filed Feb 24, 2025 19:10 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 6,391 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-025475 · ownership.xml · derivative · entry 4 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,391 Underlying: Common Stock · 6,391 shares Expires not disclosed F5 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock. F6 · derivative.exercise_date: All of the RSUs will vest on February 21, 2028. F6 · derivative.expiration_date: All of the RSUs will vest on February 21, 2028. Read SEC document |
| February 21, 2025 Filed Feb 24, 2025 19:10 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantEmployee Option (right to buy) · Derivative | 19,279 | $0.00 Strike: $110.15 | $0.00 |
DisclosureSEC source: 0000950170-25-025475 · ownership.xml · derivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 19,279 Underlying: Common Stock · 19,279 shares Expires 2035-02-21 F4 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 21, 2026, 2027 and 2028, respectively. Read SEC document |
| February 21, 2025 Filed Feb 24, 2025 19:10 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 3,530 | $110.54 | $390,206.20 |
DisclosureSEC source: 0000950170-25-025475 · ownership.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 56,968 F2 · shares: Shares otherwise issuable were witheld to satisfy tax obligations arising out of vesting of the Reporting Person's PSUs. F3 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $110.54 to $111.07, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Read SEC document |
| February 20, 2025 Filed Feb 24, 2025 19:10 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantCommon Stock | 8,819 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-025475 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,498 F1 · shares: Represents shares of common stock that vested on February 20, 2025, upon the determination by the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance stock units ("PSUs") granted to the Reporting Person on February 18, 2022, under the terms of the Issuer's 2013 Omnibus Incentive Plan. Read SEC document |
| February 19, 2025 Filed Feb 20, 2025 19:39 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 132 | $112.76 | $14,884.32 |
DisclosureSEC source: 0000950170-25-024028 · ownership.xml · nonDerivative · entry 4 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,679 F3 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs. Read SEC document |
| February 19, 2025 Filed Feb 20, 2025 19:39 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 50 | $112.46 | $5,623.00 |
DisclosureSEC source: 0000950170-25-024028 · ownership.xml · nonDerivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,811 F3 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs. Read SEC document |
| February 19, 2025 Filed Feb 20, 2025 19:39 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 4,264 | $111.46 | $475,265.44 |
DisclosureSEC source: 0000950170-25-024028 · ownership.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,861 F3 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs. Read SEC document |
| February 18, 2025 Filed Feb 20, 2025 19:39 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 13,987 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-024028 · ownership.xml · derivative · entry 5 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 13,987 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. F2 · derivative.exercise_date: On February 18, 2022, the reporting person was granted 13,987 RSUs vesting on the third anniversay of the grant date. F2 · derivative.expiration_date: On February 18, 2022, the reporting person was granted 13,987 RSUs vesting on the third anniversay of the grant date. Read SEC document |
| February 18, 2025 Filed Feb 20, 2025 19:39 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 13,987 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-024028 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 56,125 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. Read SEC document |
| August 14, 2024 Filed Aug 15, 2024 15:00 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 1,156 | $145.44 | $168,128.64 |
DisclosureSEC source: 0000950170-24-097402 · ownership.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 42,138 F2 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs. Read SEC document |
| August 13, 2024 Filed Aug 15, 2024 15:00 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 2,938 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-097402 · ownership.xml · derivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 2,938 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. F3 · derivative.exercise_date: On August 13, 2021, the reporting person was granted 2,938 RSUs vesting on the third anniversay of the grant date. F3 · derivative.expiration_date: On August 13, 2021, the reporting person was granted 2,938 RSUs vesting on the third anniversay of the grant date. Read SEC document |
| August 13, 2024 Filed Aug 15, 2024 15:00 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 2,938 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-097402 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 43,294 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. Read SEC document |
| May 03, 2024 Filed May 6, 2024 13:21 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 4,950 | $152.19 | $753,340.50 |
DisclosureSEC source: 0000950170-24-053244 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 40,356 Read SEC document |
| March 06, 2024 Filed Mar 7, 2024 13:32 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 4,804 | $141.02 | $677,455.28 |
DisclosureSEC source: 0000950170-24-027605 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 45,306 F1 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $141.00 to $141.05 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Read SEC document |
| February 26, 2024 Filed Feb 28, 2024 17:04 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 4,854 | $137.57 | $667,764.78 |
DisclosureSEC source: 0000950170-24-021783 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 50,110 F1 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $137.00 to $138.00 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Read SEC document |
| February 20, 2024 Filed Feb 21, 2024 15:25 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 547 | $138.68 | $75,855.23 |
DisclosureSEC source: 0000950170-24-017619 · ownership.xml · nonDerivative · entry 4 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 54,964 F3 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs and PSUs. F4 · price: Weighted average price. These shares were sold in multiple transactions at prices ranging from $138.64 to $138.73 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. Read SEC document |
| February 20, 2024 Filed Feb 21, 2024 15:25 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 5,597 | $129.92 | $727,162.24 |
DisclosureSEC source: 0000950170-24-017619 · ownership.xml · nonDerivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 55,511 F3 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs and PSUs. Read SEC document |
| February 19, 2024 Filed Feb 21, 2024 15:25 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 5,558 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-017619 · ownership.xml · derivative · entry 5 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 5,558 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. F5 · derivative.exercise_date: On February 19, 2021, the reporting person was granted 5,558 RSUs vesting on the third anniversay of the grant date. F5 · derivative.expiration_date: On February 19, 2021, the reporting person was granted 5,558 RSUs vesting on the third anniversay of the grant date. Read SEC document |
| February 19, 2024 Filed Feb 21, 2024 15:25 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 5,558 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-017619 · ownership.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 61,108 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · price: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. Read SEC document |
| February 16, 2024 Filed Feb 20, 2024 14:11 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 4,459 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-016838 · ownership.xml · derivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,459 Underlying: Common Stock · 4,459 shares Expires not disclosed F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock F3 · derivative.exercise_date: All of the restricted stock units will vest on February 16, 2027. F3 · derivative.expiration_date: All of the restricted stock units will vest on February 16, 2027. Read SEC document |
| February 16, 2024 Filed Feb 20, 2024 14:11 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantEmployee Option (right to buy) · Derivative | 12,344 | $0.00 Strike: $144.49 | $0.00 |
DisclosureSEC source: 0000950170-24-016838 · ownership.xml · derivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,344 Underlying: Common Stock · 12,344 shares Expires 2034-02-16 F1 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 16, 2025, 2026 and 2027, respectively. Read SEC document |
| February 16, 2024 Filed Feb 21, 2024 15:25 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantCommon Stock | 11,150 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-017619 · ownership.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 55,550 F1 · shares: Represents shares of common stock that vested on February 16, 2024 upon the approval of the Issuer's Board of Directors ("BOD"), and the determination by the Compensation Committee of the BOD, of the satisfaction of performance criteria underlying an award of performance stock units ("PSUs") granted to the Reporting Person on February 19, 2021 under the terms of the Issuer's 2013 Omnibus Incentive Plan. Read SEC document |
| August 07, 2023 Filed Aug 9, 2023 16:02 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 12,606 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC source: 0001209191-23-045125 · doc4.xml · derivative · entry 7 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,494 Underlying: Common Sotck · 12,606 shares Expires 2031-02-19 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F5 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 19, 2022, 2023 and 2024, respectively. Read SEC document |
| August 07, 2023 Filed Aug 9, 2023 16:02 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 12,033 | $0.00 Strike: $107.75 | $0.00 |
DisclosureSEC source: 0001209191-23-045125 · doc4.xml · derivative · entry 6 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 12,033 shares Expires 2028-02-16 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 16, 2019, 2020 and 2021, respectively. Read SEC document |
| August 07, 2023 Filed Aug 9, 2023 16:02 UTC | WESTLAKE CORP WLK · Entity 3555 | Disposition to issuerCommon Stock | 2,625 | $133.99 | $351,723.75 |
DisclosureSEC source: 0001209191-23-045125 · doc4.xml · nonDerivative · entry 5 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 44,400 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $133.89 to $134.16, inclusive. The reporting person undertakes to provide to Westlake Corp., any security holder of Westlake Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Read SEC document |
| August 07, 2023 Filed Aug 9, 2023 16:02 UTC | WESTLAKE CORP WLK · Entity 3555 | Disposition to issuerCommon Stock | 19,598 | $133.48 | $2,615,941.04 |
DisclosureSEC source: 0001209191-23-045125 · doc4.xml · nonDerivative · entry 4 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 47,025 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $132.885 to $133.88, inclusive. The reporting person undertakes to provide to Westlake Corp., any security holder of Westlake Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Read SEC document |
| August 07, 2023 Filed Aug 9, 2023 16:02 UTC | WESTLAKE CORP WLK · Entity 3555 | Disposition to issuerCommon Stock | 2,416 | $132.43 | $319,950.88 |
DisclosureSEC source: 0001209191-23-045125 · doc4.xml · nonDerivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 66,623 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $131.88 to $132.88, inclusive. The reporting person undertakes to provide to Westlake Corp., any security holder of Westlake Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Read SEC document |
| August 07, 2023 Filed Aug 9, 2023 16:02 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 12,606 | $86.54 | $1,090,896.77 |
DisclosureSEC source: 0001209191-23-045125 · doc4.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 69,039 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| August 07, 2023 Filed Aug 9, 2023 16:02 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 12,033 | $107.75 | $1,296,555.75 |
DisclosureSEC source: 0001209191-23-045125 · doc4.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 56,433 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| May 12, 2023 Filed May 16, 2023 17:36 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 13,164 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-23-029731 · doc4.xml · derivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,164 Underlying: Common Stock · 13,164 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock F2 · derivative.exercise_date: All of the restricted stock units will vest on May 12, 2026. F2 · derivative.expiration_date: All of the restricted stock units will vest on May 12, 2026. Read SEC document |
| May 08, 2023 Filed May 10, 2023 11:42 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 1,084 | $0.00 Strike: $65.81 | $0.00 |
DisclosureSEC source: 0001209191-23-028402 · doc4.xml · derivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,199 Underlying: Common Stock · 1,084 shares Expires 2030-02-14 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 14, 2021, 2022 and 2023, respectively. Read SEC document |
| May 08, 2023 Filed May 10, 2023 11:42 UTC | WESTLAKE CORP WLK · Entity 3555 | Disposition to issuerCommon Stock | 1,084 | $120.03 | $130,109.27 |
DisclosureSEC source: 0001209191-23-028402 · doc4.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP & CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 44,400 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $120.01 to $120.045, inclusive. The reporting person undertakes to provide to Westlake Corp., any security holder of Westlake Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.