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person · Reporting owner

Zoeller Johnathan Stevan

Disclosed activity across 2 companies

Tapewire entity
92748
SEC CIK
0001803678

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
WESTLAKE CORPWLK · Entity 3555VP and CAOMarch 21, 2024March 22, 2024
Westlake Chemical Partners LPWLKP · Entity 5149VP and CAOMarch 31, 2020March 31, 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 March 21, 2024 · Filed March 22, 2024

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect4,416 Ending reported balance After 2024-03-21 transaction · row 4
4 source rows · reconciled sequence

Row 1 · 2024-03-21 · Exercise / conversion · Acquired 293 · Balance 4,709

Row 2 · 2024-03-21 · Exercise / conversion · Acquired 296 · Balance 5,005

Row 3 · 2024-03-21 · Exercise / conversion · Acquired 68 · Balance 5,073

Row 4 · 2024-03-21 · Disposition to issuer · Disposed 657 · Balance 4,416

Employee Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $86.54 · Expires 2031-02-19Direct0 Reported balance After 2024-03-21 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2024-03-21 · Exercise / conversion · Disposed 293 · Balance 0

F1: The stock options are exercisable in three installments of 33%. 33% and 34% on February 19, 2022, 2023 and 2024, respectively.

Employee Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $108.12 · Expires 2032-02-18Direct878 Reported balance After 2024-03-21 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2024-03-21 · Exercise / conversion · Disposed 296 · Balance 878

F2: The stock options are exercisable in three installments of 33%, 33% and 34% on February 18, 2023, 2024 and 2025, respectively.

Employee Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $122.65 · Expires 2033-02-17Direct1,457 Reported balance After 2024-03-21 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2024-03-21 · Exercise / conversion · Disposed 68 · Balance 1,457

F3: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2024, 2025 and 2026, respectively.

Filing footnotes · ownership attribution and instrument terms

F1: The stock options are exercisable in three installments of 33%. 33% and 34% on February 19, 2022, 2023 and 2024, respectively.

F2: The stock options are exercisable in three installments of 33%, 33% and 34% on February 18, 2023, 2024 and 2025, respectively.

F3: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2024, 2025 and 2026, respectively.

Westlake Chemical Partners LP

Report date March 31, 2020 · Filed March 31, 2020

This filing explicitly reported no securities owned.

Transaction history

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Purchases/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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 21, 2024 Filed Mar 22, 2024 18:55 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 68 $0.00 Strike: $122.65 $0.00
Disclosure

SEC source: 0000950170-24-035284 · ownership.xml · derivative · entry 7

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,457

Underlying: Common Stock · 68 shares

Expires 2033-02-17

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.

F3 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2024, 2025 and 2026, respectively.

Read SEC document
March 21, 2024 Filed Mar 22, 2024 18:55 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 296 $0.00 Strike: $108.12 $0.00
Disclosure

SEC source: 0000950170-24-035284 · ownership.xml · derivative · entry 6

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 878

Underlying: Common Stock · 296 shares

Expires 2032-02-18

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 exercisable in three installments of 33%, 33% and 34% on February 18, 2023, 2024 and 2025, respectively.

Read SEC document
March 21, 2024 Filed Mar 22, 2024 18:55 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 293 $0.00 Strike: $86.54 $0.00
Disclosure

SEC source: 0000950170-24-035284 · ownership.xml · derivative · entry 5

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 293 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.

F1 · 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
March 21, 2024 Filed Mar 22, 2024 18:55 UTC WESTLAKE CORP WLK · Entity 3555 Disposition to issuerCommon Stock 657 $150.57 $98,921.21
Disclosure

SEC source: 0000950170-24-035284 · ownership.xml · nonDerivative · entry 4

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,416

Read SEC document
March 21, 2024 Filed Mar 22, 2024 18:55 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 68 $122.65 $8,340.20
Disclosure

SEC source: 0000950170-24-035284 · ownership.xml · nonDerivative · entry 3

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,073

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 21, 2024 Filed Mar 22, 2024 18:55 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 296 $108.12 $32,002.78
Disclosure

SEC source: 0000950170-24-035284 · ownership.xml · nonDerivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,005

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 21, 2024 Filed Mar 22, 2024 18:55 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 293 $86.54 $25,355.60
Disclosure

SEC source: 0000950170-24-035284 · ownership.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,709

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, 2024 Filed Mar 11, 2024 13:03 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 649 $0.00 Strike: $122.65 $0.00
Disclosure

SEC source: 0000950170-24-028937 · ownership.xml · derivative · entry 7

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,525

Underlying: Common Stock · 649 shares

Expires 2033-02-17

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.

F3 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2024, 2025 and 2026, respectively.

Read SEC document
March 08, 2024 Filed Mar 11, 2024 13:03 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 1,408 $0.00 Strike: $108.12 $0.00
Disclosure

SEC source: 0000950170-24-028937 · ownership.xml · derivative · entry 6

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,174

Underlying: Common Stock · 1,408 shares

Expires 2032-02-18

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 exercisable in three installments of 33%, 33% and 34% on February 18, 2023, 2024 and 2025, respectively.

Read SEC document
March 08, 2024 Filed Mar 11, 2024 13:03 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 719 $0.00 Strike: $86.54 $0.00
Disclosure

SEC source: 0000950170-24-028937 · ownership.xml · derivative · entry 5

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 293

Underlying: Common Stock · 719 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.

F1 · 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
March 08, 2024 Filed Mar 11, 2024 13:03 UTC WESTLAKE CORP WLK · Entity 3555 Disposition to issuerCommon Stock 2,776 $142.09 $394,441.84
Disclosure

SEC source: 0000950170-24-028937 · ownership.xml · nonDerivative · entry 4

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,416

Read SEC document
March 08, 2024 Filed Mar 11, 2024 13:03 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 649 $122.65 $79,599.85
Disclosure

SEC source: 0000950170-24-028937 · ownership.xml · nonDerivative · entry 3

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,192

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, 2024 Filed Mar 11, 2024 13:03 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 1,408 $108.12 $152,229.44
Disclosure

SEC source: 0000950170-24-028937 · ownership.xml · nonDerivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,543

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, 2024 Filed Mar 11, 2024 13:03 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 719 $86.54 $62,220.75
Disclosure

SEC source: 0000950170-24-028937 · ownership.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,135

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, 2024 Filed Feb 21, 2024 15:31 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 67 $138.30 $9,266.03
Disclosure

SEC source: 0000950170-24-017626 · ownership.xml · nonDerivative · entry 4

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,416

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 $138.13 to $138.67 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 15:31 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 679 $129.92 $88,215.68
Disclosure

SEC source: 0000950170-24-017626 · ownership.xml · nonDerivative · entry 3

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,483

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 15:31 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionRestricted Stock Units · Derivative 866 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-017626 · ownership.xml · derivative · entry 5

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 866 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 866 RSUs vesting on the third anniversay of the grant date.

F5 · derivative.expiration_date: On February 19, 2021, the reporting person was granted 866 RSUs vesting on the third anniversay of the grant date.

Read SEC document
February 19, 2024 Filed Feb 21, 2024 15:31 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 866 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-017626 · ownership.xml · nonDerivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,162

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 14:07 UTC WESTLAKE CORP WLK · Entity 3555 GrantRestricted Stock Units · Derivative 715 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-016828 · ownership.xml · derivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 715

Underlying: Common Stock · 715 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 14:07 UTC WESTLAKE CORP WLK · Entity 3555 GrantEmployee Option (right to buy) · Derivative 1,980 $0.00 Strike: $144.49 $0.00
Disclosure

SEC source: 0000950170-24-016828 · ownership.xml · derivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,980

Underlying: Common Stock · 1,980 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 15:31 UTC WESTLAKE CORP WLK · Entity 3555 GrantCommon Stock 1,736 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-017626 · ownership.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,296

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 14, 2023 Filed Aug 15, 2023 14:44 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 144 $132.11 $19,023.84
Disclosure

SEC source: 0001209191-23-045784 · doc4.xml · nonDerivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,560

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
August 13, 2023 Filed Aug 15, 2023 14:44 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionRestricted Stock Units · Derivative 588 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-045784 · doc4.xml · derivative · entry 3

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 588 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 the Issuer's common stock on a one-for-one basis.

F3 · derivative.exercise_date: On August 13, 2021 the reporting person was granted 588 restricted stock units vesting on the second anniversary of the grant date.

F3 · derivative.expiration_date: On August 13, 2021 the reporting person was granted 588 restricted stock units vesting on the second anniversary of the grant date.

Read SEC document
August 13, 2023 Filed Aug 15, 2023 14:44 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 588 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-23-045784 · doc4.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,704

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 the Issuer's common stock on a one-for-one basis.

Read SEC document
May 19, 2023 Filed May 22, 2023 14:34 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 1,963 $0.00 Strike: $86.54 $0.00
Disclosure

SEC source: 0001209191-23-031345 · doc4.xml · derivative · entry 3

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,012

Underlying: Common Stock · 1,963 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.

F2 · 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 19, 2023 Filed May 22, 2023 14:34 UTC WESTLAKE CORP WLK · Entity 3555 Disposition to issuerCommon Stock 1,963 $116.66 $229,003.58
Disclosure

SEC source: 0001209191-23-031345 · doc4.xml · nonDerivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,116

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $116.65 to $116.74, 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
May 19, 2023 Filed May 22, 2023 14:34 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 1,963 $86.54 $169,873.90
Disclosure

SEC source: 0001209191-23-031345 · doc4.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,079

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 13, 2023 Filed Mar 15, 2023 19:23 UTC Amendment WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 19 $107.32 $2,039.08
Disclosure

SEC source: 0001567619-23-005101 · doc1.xml · nonDerivative · entry 3

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,116

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 377 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
March 13, 2023 Filed Mar 15, 2023 19:23 UTC Amendment WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 358 $104.32 $37,346.56
Disclosure

SEC source: 0001567619-23-005101 · doc1.xml · nonDerivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,135

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 377 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 27, 2023 Filed Feb 28, 2023 14:51 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 1,038 $0.00 Strike: $65.81 $0.00
Disclosure

SEC source: 0001567619-23-003893 · doc1.xml · derivative · entry 5

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,038 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
February 27, 2023 Filed Feb 28, 2023 14:51 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 651 $0.00 Strike: $79.83 $0.00
Disclosure

SEC source: 0001567619-23-003893 · doc1.xml · derivative · entry 4

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 651 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 are excercisable in three installments of 33%, 33% and 34% on February 15, 2020, 2021 and 2022, respectively.

Read SEC document
February 27, 2023 Filed Feb 28, 2023 14:51 UTC WESTLAKE CORP WLK · Entity 3555 Disposition to issuerCommon Stock 1,689 $120.65 $203,771.77
Disclosure

SEC source: 0001567619-23-003893 · doc1.xml · nonDerivative · entry 3

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,493

Read SEC document
February 27, 2023 Filed Feb 28, 2023 14:51 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 1,038 $65.81 $68,313.38
Disclosure

SEC source: 0001567619-23-003893 · doc1.xml · nonDerivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,182

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, 2023 Filed Feb 28, 2023 14:51 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 651 $79.83 $51,969.33
Disclosure

SEC source: 0001567619-23-003893 · doc1.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,144

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 17, 2023 Filed Feb 17, 2023 20:41 UTC WESTLAKE CORP WLK · Entity 3555 GrantCommon Stock 1,446 $0.00 $0.00
Disclosure

SEC source: 0001567619-23-003269 · doc1.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,493

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.

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February 17, 2023 Filed Feb 21, 2023 14:11 UTC WESTLAKE CORP WLK · Entity 3555 GrantRestricted Stock Units · Derivative 796 $0.00 $0.00
Disclosure

SEC source: 0001567619-23-003375 · doc1.xml · derivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 796

Underlying: Common Stock · 796 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.

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February 17, 2023 Filed Feb 21, 2023 14:11 UTC WESTLAKE CORP WLK · Entity 3555 GrantEmployee Option (right to buy) · Derivative 2,174 $0.00 Strike: $122.65 $0.00
Disclosure

SEC source: 0001567619-23-003375 · doc1.xml · derivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,174

Underlying: Common Stock · 2,174 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.

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February 17, 2023 Filed Mar 15, 2023 19:23 UTC Amendment WESTLAKE CORP WLK · Entity 3555 GrantCommon Stock 1,446 $0.00 $0.00
Disclosure

SEC source: 0001567619-23-005101 · doc1.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,493

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February 15, 2023 Filed Feb 16, 2023 16:42 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 3 $122.63 $367.89
Disclosure

SEC source: 0001567619-23-003138 · doc1.xml · nonDerivative · entry 3

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,047

F2 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units.

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February 15, 2023 Filed Feb 16, 2023 16:42 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 214 $121.86 $26,078.04
Disclosure

SEC source: 0001567619-23-003138 · doc1.xml · nonDerivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,050

F2 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units.

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February 14, 2023 Filed Feb 16, 2023 16:42 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionRestricted Stock Units · Derivative 721 $0.00 $0.00
Disclosure

SEC source: 0001567619-23-003138 · doc1.xml · derivative · entry 4

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 721 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 721 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 721 restricted stock units vesting on the third anniversary of the grant date.

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February 14, 2023 Filed Feb 16, 2023 16:42 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 721 Not disclosed Not disclosed
Disclosure

SEC source: 0001567619-23-003138 · doc1.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,264

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.

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August 26, 2022 Filed Aug 29, 2022 14:40 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 542 $107.08 $58,037.36
Disclosure

SEC source: 0001567619-22-016740 · doc1.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 543

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $107.07 to $107.12, inclusive. The reporting person undertakes to provide to Westlake Corporation, any security holder of Westlake 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.

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March 14, 2022 Filed Mar 15, 2022 20:00 UTC Amendment WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 71 $118.51 $8,414.21
Disclosure

SEC source: 0001567619-22-006989 · doc1.xml · nonDerivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,085

F2 · shares: The Original Form 4 is further amended to disclose that 71 shares of common stock were sold to cover tax withholding obligations arising from the award. 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 4A is in addition to, and does not replace, the disclosure contained in the Original Form 4.

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March 01, 2022 Filed Mar 2, 2022 15:17 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 1,006 $0.00 Strike: $65.81 $0.00
Disclosure

SEC source: 0001567619-22-005949 · doc1.xml · derivative · entry 3

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,038

Underlying: Common Stock · 1,006 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.

F1 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 14, 2021, 2022 and 2023, respectively.

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March 01, 2022 Filed Mar 2, 2022 15:17 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 1,006 $110.39 $111,052.34
Disclosure

SEC source: 0001567619-22-005949 · doc1.xml · nonDerivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,157

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March 01, 2022 Filed Mar 2, 2022 15:17 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 1,006 $65.81 $66,207.38
Disclosure

SEC source: 0001567619-22-005949 · doc1.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,163

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 18, 2022 Filed Feb 22, 2022 12:09 UTC WESTLAKE CORP WLK · Entity 3555 GrantRestricted Stock Units · Derivative 817 $0.00 $0.00
Disclosure

SEC source: 0001567619-22-005171 · doc1.xml · derivative · entry 2

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 817

Underlying: Common Stock · 817 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.

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February 18, 2022 Filed Feb 22, 2022 12:09 UTC WESTLAKE CORP WLK · Entity 3555 GrantEmployee Option (right to buy) · Derivative 2,582 $0.00 Strike: $108.12 $0.00
Disclosure

SEC source: 0001567619-22-005171 · doc1.xml · derivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,582

Underlying: Common Stock · 2,582 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.

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February 18, 2022 Filed Feb 22, 2022 12:08 UTC WESTLAKE CORP WLK · Entity 3555 GrantCommon Stock 286 $0.00 $0.00
Disclosure

SEC source: 0001567619-22-005170 · doc1.xml · nonDerivative · entry 1

Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,157

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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.