Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| WESTLAKE CORPWLK · Entity 3555 | EVP, PEM Segment Head | March 30, 2026 | March 31, 2026 |
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 March 30, 2026 · Filed March 31, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 34,482 |
Reported balance
After 2026-03-27 transaction · row 1
1 source rowRow 1 · 2026-03-27 · Sale · Disposed 4,000 · Balance 34,482 |
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 |
|---|---|---|---|---|---|---|
| March 13, 2023 Filed Mar 15, 2023 15:17 UTC Amendment | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 4,512 | $104.32 | $470,691.84 |
DisclosureSEC source: 0001567619-23-005095 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,209 F1 · shares: The original Form 4 filed by the Reporting Person on February 17, 2023 is amended by this Form 4 Amendment to disclose that 4,752 shares of common stock were sold to cover tax withholding obligations arising from the award reported in the original Form 4. The original Form 4 did not report the sale to cover tax withholding obligations because the number of shares to be sold was not known at the time of filing. This Form 4 Amendment is in addition to, and does not replace, the disclosure contained in the original Form 4. Read SEC document |
| February 17, 2023 Filed Feb 17, 2023 15:35 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantCommon Stock | 11,298 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-23-003263 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 25,721 F1 · shares: Represents shares of common stock that vested 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 granted to the Reporting Person on February 14, 2020 under the terms of the Issuer's 2013 Omnibus Incentive Plan. Read SEC document |
| February 17, 2023 Filed Feb 21, 2023 09:06 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 3,478 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-23-003368 · doc1.xml · derivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,478 Underlying: Common Stock · 3,478 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 17, 2026. F3 · derivative.expiration_date: All of the restricted stock units will vest on February 17, 2026. Read SEC document |
| February 17, 2023 Filed Feb 21, 2023 09:06 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantEmployee Option (right to buy) · Derivative | 9,495 | $0.00 Strike: $122.65 | $0.00 |
DisclosureSEC source: 0001567619-23-003368 · doc1.xml · derivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,495 Underlying: Common Stock · 9,495 shares Expires 2033-02-17 F1 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 17, 2024, 2025 and 2026, respectively. Read SEC document |
| February 17, 2023 Filed Mar 15, 2023 15:17 UTC Amendment | WESTLAKE CORP WLK · Entity 3555 | GrantCommon Stock | 11,298 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-23-005095 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 25,721 Read SEC document |
| February 15, 2023 Filed Feb 16, 2023 11:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 20 | $122.41 | $2,448.20 |
DisclosureSEC source: 0001567619-23-003132 · doc1.xml · nonDerivative · entry 3 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 14,423 F2 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units. Read SEC document |
| February 15, 2023 Filed Feb 16, 2023 11:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 1,397 | $121.86 | $170,238.42 |
DisclosureSEC source: 0001567619-23-003132 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 14,443 F2 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units. Read SEC document |
| February 14, 2023 Filed Feb 16, 2023 11:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 5,632 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-23-003132 · doc1.xml · derivative · entry 4 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 5,632 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. F3 · derivative.exercise_date: On February 14, 2020, the reporting person was granted 5,632 restricted stock units vesting on the third anniversary of the grant date. F3 · derivative.expiration_date: On February 14, 2020, the reporting person was granted 5,632 restricted stock units vesting on the third anniversary of the grant date. Read SEC document |
| February 14, 2023 Filed Feb 16, 2023 11:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 5,632 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001567619-23-003132 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,840 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 |
| August 31, 2022 Filed Sep 1, 2022 12:06 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 1,000 | $98.94 | $98,940.00 |
DisclosureSEC source: 0001567619-22-016895 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,208 Read SEC document |
| August 23, 2022 Filed Aug 24, 2022 12:36 UTC | WESTLAKE CORP WLK · Entity 3555 | GiftCommon Stock | 572 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-22-016613 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,208 Read SEC document |
| May 27, 2022 Filed May 31, 2022 12:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 4,856 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC source: 0001567619-22-011902 · doc1.xml · derivative · entry 5 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,862 Underlying: Common Stock · 4,856 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 were excercisable in three installments of 33%, 33% and 34% on February 19, 2022, 2023 and 2024, respectively. Read SEC document |
| May 27, 2022 Filed May 31, 2022 12:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 9,571 | $0.00 Strike: $107.75 | $0.00 |
DisclosureSEC source: 0001567619-22-011902 · doc1.xml · derivative · entry 4 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 9,571 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. F2 · derivative.exercise_date: The stock options were excercisable in three installments of 33%, 33% and 34% on February 16, 2019, 2020 and 2021, respectively. Read SEC document |
| May 27, 2022 Filed May 31, 2022 12:38 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 14,427 | $129.47 | $1,867,820.41 |
DisclosureSEC source: 0001567619-22-011902 · doc1.xml · nonDerivative · entry 3 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,780 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $129.45 to $129.72, inclusive. The reporting person undertakes to provide to Westlake 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. Read SEC document |
| May 27, 2022 Filed May 31, 2022 12:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 4,856 | $86.54 | $420,228.04 |
DisclosureSEC source: 0001567619-22-011902 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 26,207 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 27, 2022 Filed May 31, 2022 12:38 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 9,571 | $107.75 | $1,031,275.25 |
DisclosureSEC source: 0001567619-22-011902 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,351 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 |
| March 15, 2022 Filed Mar 16, 2022 08:24 UTC | WESTLAKE CORP WLK · Entity 3555 | GiftCommon Stock | 500 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-22-007013 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,780 Read SEC document |
| March 14, 2022 Filed Mar 15, 2022 15:38 UTC Amendment | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 3 | $120.25 | $360.74 |
DisclosureSEC source: 0001567619-22-006982 · doc1.xml · nonDerivative · entry 3 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,280 F1 · shares: The original Form 4 filed by the Reporting Person on February 18, 2022 is amended by this Form 4 Amendment to disclose that 2,559 shares of common stock were sold to cover tax withholding obligations arising from the award reported in the original Form 4. The original Form 4 did not report the sale to cover tax withholding obligations because the number of shares to be sold was not known at the time of filing. This Form 4 Amendment is in addition to, and does not replace, the disclosure contained in the original Form 4. F2 · balance_after: The amount of common stock beneficially owned by the Reporting Person reflects adjustments for subsequent transactions reported on March 10, 2022 and March 14, 2022 and is the total owned as of March 15, 2022. Read SEC document |
| March 14, 2022 Filed Mar 15, 2022 15:38 UTC Amendment | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 2,556 | $118.51 | $302,911.56 |
DisclosureSEC source: 0001567619-22-006982 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,283 F1 · shares: The original Form 4 filed by the Reporting Person on February 18, 2022 is amended by this Form 4 Amendment to disclose that 2,559 shares of common stock were sold to cover tax withholding obligations arising from the award reported in the original Form 4. The original Form 4 did not report the sale to cover tax withholding obligations because the number of shares to be sold was not known at the time of filing. This Form 4 Amendment is in addition to, and does not replace, the disclosure contained in the original Form 4. F2 · balance_after: The amount of common stock beneficially owned by the Reporting Person reflects adjustments for subsequent transactions reported on March 10, 2022 and March 14, 2022 and is the total owned as of March 15, 2022. Read SEC document |
| March 10, 2022 Filed Mar 14, 2022 08:52 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 7,861 | $0.00 Strike: $65.81 | $0.00 |
DisclosureSEC source: 0001567619-22-006831 · doc1.xml · derivative · entry 5 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 8,100 Underlying: Common Stock · 7,861 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 were excercisable in three installments of 33%, 33% and 34% on February 14, 2021, 2022 and 2023, respectively. Read SEC document |
| March 10, 2022 Filed Mar 14, 2022 08:52 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 14,694 | $0.00 Strike: $79.83 | $0.00 |
DisclosureSEC source: 0001567619-22-006831 · doc1.xml · derivative · entry 4 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 14,694 shares Expires 2029-02-15 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_date: The stock options were excercisable in three installments of 33%, 33% and 34% on February 15, 2020, 2021 and 2022, respectively. Read SEC document |
| March 10, 2022 Filed Mar 14, 2022 08:52 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 22,555 | $117.61 | $2,652,693.55 |
DisclosureSEC source: 0001567619-22-006831 · doc1.xml · nonDerivative · entry 3 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 14,839 Read SEC document |
| March 10, 2022 Filed Mar 14, 2022 08:52 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 7,861 | $65.81 | $517,352.06 |
DisclosureSEC source: 0001567619-22-006831 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 37,394 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 |
| March 10, 2022 Filed Mar 14, 2022 08:52 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 14,694 | $79.83 | $1,173,022.02 |
DisclosureSEC source: 0001567619-22-006831 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 29,533 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 |
| March 09, 2022 Filed Mar 10, 2022 08:56 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 2,730 | $115.55 | $315,451.50 |
DisclosureSEC source: 0001567619-22-006679 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 14,839 Read SEC document |
| February 18, 2022 Filed Feb 22, 2022 07:01 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 12,923 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-22-005158 · doc1.xml · derivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT and Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,923 Underlying: Common Stock · 12,923 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 18, 2025. F3 · derivative.expiration_date: All of the restricted stock units will vest on February 18, 2025. Read SEC document |
| February 18, 2022 Filed Feb 22, 2022 07:01 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantEmployee Option (right to buy) · Derivative | 11,615 | $0.00 Strike: $108.12 | $0.00 |
DisclosureSEC source: 0001567619-22-005158 · doc1.xml · derivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT and Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,615 Underlying: Common Stock · 11,615 shares Expires 2032-02-18 F1 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 18, 2023, 2024 and 2025, respectively. Read SEC document |
| February 18, 2022 Filed Feb 22, 2022 07:01 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantCommon Stock | 6,446 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-22-005157 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 17,569 F1 · shares: Represents shares of common stock that vested 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 granted to the Reporting Person on February 15, 2019 under the terms of the Issuer's 2013 Omnibus Incentive Plan. Read SEC document |
| February 18, 2022 Filed Mar 15, 2022 15:38 UTC Amendment | WESTLAKE CORP WLK · Entity 3555 | GrantCommon Stock | 6,446 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-22-006982 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, HIP, IT & Digital 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 17,569 Read SEC document |
| February 16, 2022 Filed Feb 17, 2022 12:09 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 963 | $104.96 | $101,076.48 |
DisclosureSEC source: 0001567619-22-004826 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,123 F2 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units. Read SEC document |
| February 15, 2022 Filed Feb 17, 2022 12:09 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 3,869 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-22-004826 · doc1.xml · derivative · entry 3 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 3,869 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. F3 · derivative.exercise_date: On February 15, 2019, the reporting person was granted 3,869 restricted stock units vesting on the third anniversary of the grant date. F3 · derivative.expiration_date: On February 15, 2019, the reporting person was granted 3,869 restricted stock units vesting on the third anniversary of the grant date. Read SEC document |
| February 15, 2022 Filed Feb 17, 2022 12:09 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 3,869 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001567619-22-004826 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,086 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 |
| August 13, 2021 Filed Aug 16, 2021 14:15 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 7,051 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-21-015747 · doc1.xml · derivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 7,051 Underlying: Common Stock · 7,051 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 August 13, 2024. F2 · derivative.expiration_date: All of the restricted stock units will vest on August 13, 2024. Read SEC document |
| May 10, 2021 Filed May 11, 2021 12:14 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 5,000 | $105.00 | $525,000.00 |
DisclosureSEC source: 0001567619-21-009506 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 8,217 Read SEC document |
| March 18, 2021 Filed Mar 18, 2021 17:56 UTC | WESTLAKE CORP WLK · Entity 3555 | GiftCommon Stock | 82 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-21-006620 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 13,217 Read SEC document |
| March 08, 2021 Filed Mar 9, 2021 07:58 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 7,861 | $0.00 Strike: $65.81 | $0.00 |
DisclosureSEC source: 0001567619-21-005878 · doc1.xml · derivative · entry 6 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,961 Underlying: Common Stock · 7,861 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. F3 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 14, 2021, 2022 and 2023. Read SEC document |
| March 08, 2021 Filed Mar 9, 2021 07:58 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionEmployee Option (right to buy) · Derivative | 8,652 | $0.00 Strike: $61.87 | $0.00 |
DisclosureSEC source: 0001567619-21-005878 · doc1.xml · derivative · entry 5 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 8,652 shares Expires 2027-02-17 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, 2018, 2019 and 2020. Read SEC document |
| March 08, 2021 Filed Mar 9, 2021 07:58 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 7,861 | $95.00 | $746,795.00 |
DisclosureSEC source: 0001567619-21-005878 · doc1.xml · nonDerivative · entry 4 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 13,299 Read SEC document |
| March 08, 2021 Filed Mar 9, 2021 07:58 UTC | WESTLAKE CORP WLK · Entity 3555 | SaleCommon Stock | 8,652 | $92.50 | $800,310.00 |
DisclosureSEC source: 0001567619-21-005878 · doc1.xml · nonDerivative · entry 3 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,160 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $92.50 to $92.52, 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 |
| March 08, 2021 Filed Mar 9, 2021 07:58 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 7,861 | $65.81 | $517,352.06 |
DisclosureSEC source: 0001567619-21-005878 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 29,812 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 |
| March 08, 2021 Filed Mar 9, 2021 07:58 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 8,652 | $61.87 | $535,255.98 |
DisclosureSEC source: 0001567619-21-005878 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,951 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 19, 2021 Filed Feb 22, 2021 08:30 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 4,283 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-21-004532 · doc1.xml · derivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,283 Underlying: Common Stock · 4,283 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 19, 2024. F3 · derivative.expiration_date: All of the restricted stock units will vest on February 19, 2024. Read SEC document |
| February 19, 2021 Filed Feb 22, 2021 08:30 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantEmployee Option (right to buy) · Derivative | 14,718 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC source: 0001567619-21-004532 · doc1.xml · derivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 14,718 Underlying: Common Stock · 14,718 shares Expires 2031-02-19 F1 · 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 |
| February 18, 2021 Filed Feb 18, 2021 17:30 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 641 | $85.08 | $54,535.64 |
DisclosureSEC source: 0001567619-21-004434 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 13,299 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $85.06 to $85.70, 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 16, 2021 Filed Feb 17, 2021 14:52 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 4 | $87.43 | $349.73 |
DisclosureSEC source: 0001567619-21-004227 · doc1.xml · nonDerivative · entry 3 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,371 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 14:52 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 322 | $85.73 | $27,605.06 |
DisclosureSEC source: 0001567619-21-004227 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,375 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 14:22 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 4 | $87.43 | $349.73 |
DisclosureSEC source: 0001567619-21-004213 · doc1.xml · nonDerivative · entry 3 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,371 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 14:22 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 322 | $85.73 | $27,605.06 |
DisclosureSEC source: 0001567619-21-004213 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,375 Read SEC document |
| February 16, 2021 Filed Feb 18, 2021 17:30 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 2,569 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-21-004434 · doc1.xml · derivative · entry 3 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 2,569 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 16, 2018, the reporting person was granted 2,569 restricted stock units vesting on the third anniversary of the grant date. F2 · derivative.expiration_date: On February 16, 2018, the reporting person was granted 2,569 restricted stock units vesting on the third anniversary of the grant date. Read SEC document |
| February 16, 2021 Filed Feb 18, 2021 17:30 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 2,569 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001567619-21-004434 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · EVP, Vinyl Products 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 13,940 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.