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 |
|---|---|---|---|---|---|---|
| December 01, 2019 Filed Dec 3, 2019 18:56 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 8,324 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001567619-19-022522 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 28,938 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 convert into Issuer's shares of common stock on a one-for-one basis. Read SEC document |
| May 15, 2019 Filed Feb 19, 2019 17:48 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 4,755 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-19-004786 · doc1.xml · derivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,755 Underlying: Common Stock · 4,755 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 15, 2022. F3 · derivative.expiration_date: All of the restricted stock units will vest on February 15, 2022. Read SEC document |
| February 19, 2019 Filed Feb 20, 2019 18:44 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 152 | $75.83 | $11,526.16 |
DisclosureSEC source: 0001567619-19-004965 · doc1.xml · nonDerivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,614 Read SEC document |
| February 19, 2019 Filed Feb 20, 2019 18:44 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 1,610 | $73.29 | $117,996.90 |
DisclosureSEC source: 0001567619-19-004965 · doc1.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,766 Read SEC document |
| February 18, 2019 Filed Feb 20, 2019 18:44 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 6,566 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-19-004965 · doc1.xml · derivative · entry 4 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 6,566 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 convert into Issuer's shares of common stock on a one-for-one basis. F2 · derivative.exercise_date: On February 18, 2016, the reporting person was granted 6,566 restricted stock units vesting on the third anniversary of the grant date. F2 · derivative.expiration_date: On February 18, 2016, the reporting person was granted 6,566 restricted stock units vesting on the third anniversary of the grant date. Read SEC document |
| February 18, 2019 Filed Feb 20, 2019 18:44 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 6,566 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001567619-19-004965 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 22,376 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 convert into Issuer's shares of common stock on a one-for-one basis. Read SEC document |
| February 15, 2019 Filed Feb 19, 2019 17:48 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantEmployee Option (right to buy) · Derivative | 18,061 | $0.00 Strike: $79.83 | $0.00 |
DisclosureSEC source: 0001567619-19-004786 · doc1.xml · derivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 18,061 Underlying: Common Stock · 18,061 shares Expires 2029-02-15 F1 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 15, 2020, 2021 and 2022, respectively. Read SEC document |
| May 21, 2018 Filed May 22, 2018 16:18 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 12,066 | $0.00 Strike: $68.09 | $0.00 |
DisclosureSEC source: 0001140361-18-025119 · doc1.xml · derivative · entry 5 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 12,066 shares Expires 2025-02-20 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 20, 2016, 2017 and 2018, respectively. Read SEC document |
| May 21, 2018 Filed May 22, 2018 16:18 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 261 | $123.59 | $32,256.99 |
DisclosureSEC source: 0001140361-18-025119 · doc1.xml · nonDerivative · entry 4 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,810 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $123.58 to $123.61, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 |
| May 21, 2018 Filed May 22, 2018 16:18 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 9,505 | $123.04 | $1,169,495.20 |
DisclosureSEC source: 0001140361-18-025119 · doc1.xml · nonDerivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,071 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $122.52 to $123.51, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 |
| May 21, 2018 Filed May 22, 2018 16:18 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 2,300 | $121.90 | $280,370.00 |
DisclosureSEC source: 0001140361-18-025119 · doc1.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 25,576 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $121.51 to $122.50, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 |
| May 21, 2018 Filed May 22, 2018 16:18 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 12,066 | $68.09 | $821,573.94 |
DisclosureSEC source: 0001140361-18-025119 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 27,876 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 11, 2018 Filed May 14, 2018 13:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 6,680 | $0.00 Strike: $22.92 | $0.00 |
DisclosureSEC source: 0001140361-18-023144 · doc1.xml · derivative · entry 5 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 6,680 shares Expires 2021-02-18 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 excercisable in three installments of 33%, 33% and 34% on February 18, 2012, 2013 and 2014, respectively. Read SEC document |
| May 11, 2018 Filed May 14, 2018 13:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 16,826 | $0.00 Strike: $30.05 | $0.00 |
DisclosureSEC source: 0001140361-18-023144 · doc1.xml · derivative · entry 4 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 16,826 shares Expires 2022-02-17 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 17, 2013, 2014 and 2015, respectively. Read SEC document |
| May 11, 2018 Filed May 14, 2018 13:38 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 23,506 | $117.33 | $2,757,958.98 |
DisclosureSEC source: 0001140361-18-023144 · doc1.xml · nonDerivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,810 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $116.85 to $117.59, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 |
| May 11, 2018 Filed May 14, 2018 13:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 6,680 | $22.92 | $153,072.20 |
DisclosureSEC source: 0001140361-18-023144 · doc1.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 39,316 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 11, 2018 Filed May 14, 2018 13:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 16,826 | $30.05 | $505,663.37 |
DisclosureSEC source: 0001140361-18-023144 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 32,636 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, 2018 Filed Feb 27, 2018 18:26 UTC | Westlake Chemical Partners LP WLKP · Entity 5149 | PurchaseCommon Units (Limited Partner Interests) | 2,000 | $23.77 | $47,535.00 |
DisclosureSEC source: 0001140361-18-010379 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · Director · SVP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,000 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $23.725 to $23.795, inclusive. The reporting person undertakes to provide to Westlake Chemical Partners LP, any security holder of Westlake Chemical Partners LP 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 |
| February 26, 2018 Filed Feb 27, 2018 16:23 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 3,500 | $112.06 | $392,210.00 |
DisclosureSEC source: 0001140361-18-010336 · doc1.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,810 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $111.55 to $112.40, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 |
| February 26, 2018 Filed Feb 27, 2018 16:23 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 1,500 | $110.84 | $166,260.00 |
DisclosureSEC source: 0001140361-18-010336 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 19,310 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $110.48 to $111.40, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 |
| February 22, 2018 Filed Feb 23, 2018 17:45 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 4,000 | $110.97 | $443,880.00 |
DisclosureSEC source: 0001140361-18-009760 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 22,810 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $110.951 to $110.973, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 |
| February 22, 2018 Filed Feb 26, 2018 16:54 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 2,000 | $110.64 | $221,270.00 |
DisclosureSEC source: 0001140361-18-010042 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,810 Read SEC document |
| February 21, 2018 Filed Feb 22, 2018 14:28 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 876 | $106.98 | $93,714.48 |
DisclosureSEC source: 0001140361-18-009521 · doc1.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 26,810 Read SEC document |
| February 20, 2018 Filed Feb 22, 2018 14:28 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 3,619 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-18-009521 · doc1.xml · derivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 3,619 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 convert into Issuer's shares of common stock on a one-for-one basis. F2 · derivative.exercise_date: On February 20, 2015, the reporting person was granted 3,619 restricted stock units vesting on the third anniversary of the grant date. F2 · derivative.expiration_date: On February 20, 2015, the reporting person was granted 3,619 restricted stock units vesting on the third anniversary of the grant date. Read SEC document |
| February 20, 2018 Filed Feb 22, 2018 14:28 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 3,619 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-18-009521 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 27,686 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 convert into Issuer's shares of common stock on a one-for-one basis. Read SEC document |
| February 16, 2018 Filed Feb 20, 2018 18:59 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 3,230 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-18-008967 · doc1.xml · derivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,230 Underlying: Common Stock · 3,230 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, 2021. F3 · derivative.expiration_date: All of the restricted stock units will vest on February 16, 2021. Read SEC document |
| February 16, 2018 Filed Feb 20, 2018 18:59 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantEmployee Option (right to buy) · Derivative | 12,033 | $0.00 Strike: $107.75 | $0.00 |
DisclosureSEC source: 0001140361-18-008967 · doc1.xml · derivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,033 Underlying: Common Stock · 12,033 shares Expires 2028-02-16 F1 · 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 |
| December 04, 2017 Filed Dec 5, 2017 18:08 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 6,500 | $0.00 Strike: $22.92 | $0.00 |
DisclosureSEC source: 0001140361-17-045021 · doc1.xml · derivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 6,680 Underlying: Common Stock · 6,500 shares Expires 2021-02-18 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 18, 2012, 2013 and 2014. Read SEC document |
| December 04, 2017 Filed Dec 5, 2017 18:08 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 6,500 | $97.83 | $635,901.50 |
DisclosureSEC source: 0001140361-17-045021 · doc1.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 24,067 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $97.35 to $98.17, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 |
| December 04, 2017 Filed Dec 5, 2017 18:08 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 6,500 | $22.92 | $148,947.50 |
DisclosureSEC source: 0001140361-17-045021 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 30,567 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 |
| November 26, 2017 Filed Dec 19, 2017 20:21 UTC Amendment | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 4,407 | $0.00 Strike: $14.24 | $0.00 |
DisclosureSEC source: 0001140361-17-046709 · doc1.xml · derivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 4,407 shares Expires 2019-02-13 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: The price of the security reflected on November 26, 2012 pre-dates the two-for-one stock split which occurred March 18, 2014. F1 · shares: The amount of the security reflected on November 26, 2012 pre-dates the two-for-one stock split which occurred March 18, 2014. F3 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 13, 2010, 2011 and 2013. F1 · derivative.underlying_shares: The amount of the security reflected on November 26, 2012 pre-dates the two-for-one stock split which occurred March 18, 2014. Read SEC document |
| November 21, 2017 Filed Nov 22, 2017 15:50 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 20,382 | $94.27 | $1,921,309.23 |
DisclosureSEC source: 0001140361-17-043632 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 24,067 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $94.095 to $94.615, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 |
| November 13, 2017 Filed Nov 15, 2017 15:25 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 29,804 | $0.00 Strike: $10.26 | $0.00 |
DisclosureSEC source: 0001140361-17-042931 · doc1.xml · derivative · entry 4 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 29,804 shares Expires 2020-02-26 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 26, 2011, 2012 and 2013. Read SEC document |
| November 13, 2017 Filed Nov 15, 2017 15:25 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 600 | $94.60 | $56,760.00 |
DisclosureSEC source: 0001140361-17-042931 · doc1.xml · nonDerivative · entry 3 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 44,449 Read SEC document |
| November 13, 2017 Filed Nov 15, 2017 15:25 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 29,204 | $94.01 | $2,745,322.02 |
DisclosureSEC source: 0001140361-17-042931 · doc1.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 45,049 F1 · price: In accordance with the Securities and Exchange Commission's No Action Letter dated June 25, 2008, we have aggregated the sales that occurred on November 13, 2017 for ease of reporting. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $93.50 to $94.50, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 (1) to this Form 4. Read SEC document |
| November 13, 2017 Filed Nov 15, 2017 15:25 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 29,804 | $10.26 | $305,863.55 |
DisclosureSEC source: 0001140361-17-042931 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 74,253 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 15, 2017 Filed Aug 16, 2017 20:56 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 13,794 | $70.22 | $968,620.20 |
DisclosureSEC source: 0001140361-17-032454 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · Executive VP & CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 44,449 F1 · price: In accordance with the Securities and Exchange Commission's No Action Letter dated June 25, 2008, we have aggregated the sales that occurred on August 15, 2017 for ease of reporting. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $70.00 to 70.45, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical 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 (1) to this Form 4. Read SEC document |
| March 10, 2017 Filed Mar 13, 2017 20:01 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 12,000 | $64.32 | $771,784.80 |
DisclosureSEC source: 0001140361-17-011748 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · Sr VP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 58,243 F1 · price: In accordance with the Securities and Exchange Commission's No Action Letter dated June 25, 2008, we have aggregated the sales that occurred on March 10, 2017 for ease of reporting. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $63.78 to $64.59, inclusive. The reporting person undertakes to provide to Westlake Chemical Corporation, any security holder of Westlake Chemical Corporation 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 (1) to this Form 4. Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 21:10 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 5,375 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-008564 · doc1.xml · derivative · entry 2 Bender Mark Steven · CIK 0001330417 · Sr VP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,375 Underlying: Common Stock · 5,375 shares Expires not disclosed F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. F3 · derivative.exercise_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). F3 · derivative.expiration_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 21:10 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantEmployee Option (right to buy) · Derivative | 20,995 | $0.00 Strike: $61.87 | $0.00 |
DisclosureSEC source: 0001140361-17-008564 · doc1.xml · derivative · entry 1 Bender Mark Steven · CIK 0001330417 · Sr VP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,995 Underlying: Common Stock · 20,995 shares Expires 2027-02-17 F1 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively. Read SEC document |
| February 15, 2017 Filed Feb 16, 2017 21:17 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 909 | $64.01 | $58,185.09 |
DisclosureSEC source: 0001140361-17-007942 · doc1.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · Sr VP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 70,243 Read SEC document |
| February 14, 2017 Filed Feb 16, 2017 21:17 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 3,152 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-007942 · doc1.xml · derivative · entry 3 Bender Mark Steven · CIK 0001330417 · Sr VP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 3,152 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 convert into Issuer's common stock on a one-for-one basis. F2 · derivative.exercise_date: On February 14, 2014, the reporting person was granted 3,152 restricted stock units vesting on the third anniversary of the grant date. F2 · derivative.expiration_date: On February 14, 2014, the reporting person was granted 3,152 restricted stock units vesting on the third anniversary of the grant date. Read SEC document |
| February 14, 2017 Filed Feb 16, 2017 21:17 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 3,152 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-17-007942 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · Sr VP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 71,152 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 convert into Issuer's common stock on a one-for-one basis. Read SEC document |
| December 01, 2016 Filed Dec 5, 2016 21:05 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 8,324 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-16-088814 · doc1.xml · derivative · entry 1 Bender Mark Steven · CIK 0001330417 · Sr VP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 8,324 Underlying: Common Stock · 8,324 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. F2 · derivative.exercise_date: The restricted stock units will vest three years from the date of grant (December 1, 2019). F2 · derivative.expiration_date: The restricted stock units will vest three years from the date of grant (December 1, 2019). Read SEC document |
| November 26, 2012 Filed Dec 19, 2017 20:21 UTC Amendment | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 4,407 | $75.00 | $330,525.00 |
DisclosureSEC source: 0001140361-17-046709 · doc1.xml · nonDerivative · entry 2 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 36,281 F1 · shares: The amount of the security reflected on November 26, 2012 pre-dates the two-for-one stock split which occurred March 18, 2014. Read SEC document |
| November 26, 2012 Filed Dec 19, 2017 20:21 UTC Amendment | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 4,407 | $14.24 | $62,755.68 |
DisclosureSEC source: 0001140361-17-046709 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · EVP and CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 40,688 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 · shares: The amount of the security reflected on November 26, 2012 pre-dates the two-for-one stock split which occurred March 18, 2014. F2 · price: The price of the security reflected on November 26, 2012 pre-dates the two-for-one stock split which occurred March 18, 2014. 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.