TapewireFind a company

person · Reporting owner

Bender Mark Steven

Disclosed activity across 2 companies

Tapewire entity
47290
SEC CIK
0001330417

Export transaction history ↓

Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
WESTLAKE CORPWLK · Entity 3555EVP & CFOMay 12, 2026May 14, 2026
Westlake Chemical Partners LPWLKP · Entity 5149Director · SVP, CFOMarch 12, 2020March 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 / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect35,895 Ending reported balance After 2026-05-13 transaction · row 2
2 source rows · reconciled sequence

Row 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 securityDirect0 Reported balance After 2026-05-12 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 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 / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Units (Limited Partner Interests)SEC Table I · non-derivativeDirect14,000 Ending reported balance After 2020-03-13 transaction · row 2
2 source rows · reconciled sequence

Row 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 API
Reset

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
February 18, 2022 Filed Mar 15, 2022 19:59 UTC Amendment WESTLAKE CORP WLK · Entity 3555 GrantCommon Stock 7,922 $0.00 $0.00
Disclosure

SEC source: 0001567619-22-006988 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,535

F1 · shares: Due to an rounding error, discovered on March 15, 2022, the original Form 4 filed on behalf of the Reporting Person on February 18, 2022 (the 'Original Form 4') reported the vesting of 7,923 shares of common stock. This Form 4/A amends that filing to reflect a vesting of 7,922 shares of common stock. As previously reported, these shares of common stock 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.

F1 · balance_after: Due to an rounding error, discovered on March 15, 2022, the original Form 4 filed on behalf of the Reporting Person on February 18, 2022 (the 'Original Form 4') reported the vesting of 7,923 shares of common stock. This Form 4/A amends that filing to reflect a vesting of 7,922 shares of common stock. As previously reported, these shares of common stock 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 16, 2022 Filed Feb 17, 2022 15:33 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 1,166 $104.96 $122,383.36
Disclosure

SEC source: 0001567619-22-004814 · doc1.xml · nonDerivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,613

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 16, 2022 Filed Mar 6, 2026 20:16 UTC Amendment WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 1,171 $104.96 $122,908.16
Disclosure

SEC source: 0001193125-26-096289 · ownership.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,608

F1 · shares: The original Form 4 filed by the Reporting Person on February 17, 2022, is amended by this Form 4/A to disclose that 1,171 shares of common stock were sold to cover tax withholding obligations arising from the vesting of the Reporting Person's restricted stock units. The original Form 4 reported an incorrect number of shares sold to cover tax withholding obligations. [This Form 4/A is in addition to, and does not replace, the disclosure contained in the original Form 4.]

Read SEC document
February 15, 2022 Filed Feb 17, 2022 15:33 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionRestricted Stock Units · Derivative 4,755 $0.00 $0.00
Disclosure

SEC source: 0001567619-22-004814 · 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 · 4,755 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 4,755 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 4,755 restricted stock units vesting on the third anniversary of the grant date.

Read SEC document
February 15, 2022 Filed Feb 17, 2022 15:33 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 4,755 Not disclosed Not disclosed
Disclosure

SEC source: 0001567619-22-004814 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,779

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
November 11, 2021 Filed Nov 15, 2021 15:23 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 2,369 $101.57 $240,619.33
Disclosure

SEC source: 0001567619-21-020169 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · Director · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,024

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $101.52 to $101.594, 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 08, 2021 Filed Nov 10, 2021 17:25 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 631 $100.77 $63,587.13
Disclosure

SEC source: 0001567619-21-019659 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · Director · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,393

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $100.75 to $100.79, 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 05, 2021 Filed Nov 8, 2021 17:27 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 6,356 $98.80 $627,947.38
Disclosure

SEC source: 0001567619-21-019456 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · Director · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,024

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $98.71 to $98.84, 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
August 13, 2021 Filed Aug 16, 2021 18:02 UTC WESTLAKE CORP WLK · Entity 3555 GrantRestricted Stock Units · Derivative 2,938 $0.00 $0.00
Disclosure

SEC source: 0001567619-21-015732 · doc1.xml · derivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,938

Underlying: Common Stock · 2,938 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
March 24, 2021 Filed Mar 25, 2022 14:14 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 4,000 $79.83 $319,320.00
Disclosure

SEC source: 0001567619-22-007463 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,725

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 23, 2021 Filed Mar 24, 2022 16:19 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 3,000 $79.83 $239,490.00
Disclosure

SEC source: 0001567619-22-007422 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,725

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 12, 2021 Filed Mar 15, 2021 12:19 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 5,000 $0.00 Strike: $61.87 $0.00
Disclosure

SEC source: 0001567619-21-006247 · doc1.xml · derivative · entry 6

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,000 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.

F4 · 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 12, 2021 Filed Mar 15, 2021 12:19 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 10,740 $0.00 Strike: $45.70 $0.00
Disclosure

SEC source: 0001567619-21-006247 · 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 · 10,740 shares

Expires 2023-02-15

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.

F3 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 15, 2014, 2015 and 2016.

Read SEC document
March 12, 2021 Filed Mar 15, 2021 12:19 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 5,820 $95.23 $554,238.60
Disclosure

SEC source: 0001567619-21-006247 · doc1.xml · nonDerivative · entry 4

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,380

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $95.02 to $95.78, 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 12, 2021 Filed Mar 15, 2021 12:19 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 9,920 $94.39 $936,348.80
Disclosure

SEC source: 0001567619-21-006247 · doc1.xml · nonDerivative · entry 3

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,200

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $94.00 to $95.00, 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 12, 2021 Filed Mar 15, 2021 12:19 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 5,000 $61.87 $309,325.00
Disclosure

SEC source: 0001567619-21-006247 · doc1.xml · nonDerivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,120

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 12, 2021 Filed Mar 15, 2021 12:19 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 10,740 $45.70 $490,791.15
Disclosure

SEC source: 0001567619-21-006247 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,120

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, 2021 Filed Mar 10, 2021 13:33 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 15,995 $0.00 Strike: $61.87 $0.00
Disclosure

SEC source: 0001567619-21-005948 · doc1.xml · derivative · entry 5

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 15,995 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.

F3 · 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 09, 2021 Filed Mar 10, 2021 13:33 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 9,816 $0.00 Strike: $63.98 $0.00
Disclosure

SEC source: 0001567619-21-005948 · 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 · 9,816 shares

Expires 2024-02-14

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, 2015, 2016 and 2017.

Read SEC document
March 09, 2021 Filed Mar 10, 2021 13:33 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 25,811 $92.27 $2,381,630.01
Disclosure

SEC source: 0001567619-21-005948 · doc1.xml · nonDerivative · entry 3

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,380

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $92.00 to $92.95, 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 09, 2021 Filed Mar 10, 2021 13:33 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 15,995 $61.87 $989,530.68
Disclosure

SEC source: 0001567619-21-005948 · doc1.xml · nonDerivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,191

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, 2021 Filed Mar 10, 2021 13:33 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 9,816 $63.98 $628,003.14
Disclosure

SEC source: 0001567619-21-005948 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,196

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 13:30 UTC WESTLAKE CORP WLK · Entity 3555 GrantRestricted Stock Units · Derivative 5,558 $0.00 $0.00
Disclosure

SEC source: 0001567619-21-004531 · doc1.xml · derivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,558

Underlying: Common Stock · 5,558 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 13:30 UTC WESTLAKE CORP WLK · Entity 3555 GrantEmployee Option (right to buy) · Derivative 19,100 $0.00 Strike: $86.54 $0.00
Disclosure

SEC source: 0001567619-21-004531 · doc1.xml · derivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,100

Underlying: Common Stock · 19,100 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 22:32 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 808 $85.08 $68,746.26
Disclosure

SEC source: 0001567619-21-004435 · doc1.xml · nonDerivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,380

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 $85.80, 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 20:10 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 4 $87.38 $349.52
Disclosure

SEC source: 0001567619-21-004233 · doc1.xml · nonDerivative · entry 3

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,958

Read SEC document
February 16, 2021 Filed Feb 17, 2021 20:10 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 398 $85.73 $34,120.54
Disclosure

SEC source: 0001567619-21-004233 · doc1.xml · nonDerivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,962

Read SEC document
February 16, 2021 Filed Feb 17, 2021 20:00 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 4 $87.38 $349.52
Disclosure

SEC source: 0001567619-21-004231 · doc1.xml · nonDerivative · entry 3

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,958

Read SEC document
February 16, 2021 Filed Feb 17, 2021 20:00 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 398 $85.73 $34,120.54
Disclosure

SEC source: 0001567619-21-004231 · doc1.xml · nonDerivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,962

Read SEC document
February 16, 2021 Filed Feb 18, 2021 22:32 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionRestricted Stock Units · Derivative 3,230 $0.00 $0.00
Disclosure

SEC source: 0001567619-21-004435 · 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 · 3,230 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 3,230 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 3,230 restricted stock units vesting on the third anniversary of the grant date.

Read SEC document
February 16, 2021 Filed Feb 18, 2021 22:32 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 3,230 Not disclosed Not disclosed
Disclosure

SEC source: 0001567619-21-004435 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,188

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 14, 2021 Filed Feb 17, 2021 20:10 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionRestricted Stock Units · Derivative 1,478 $0.00 $0.00
Disclosure

SEC source: 0001567619-21-004233 · 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 · 1,478 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 14, 2020, the reporting person was granted 1,478 restricted stock units vesting on the first anniversary of the grant date.

F2 · derivative.expiration_date: On February 14, 2020, the reporting person was granted 1,478 restricted stock units vesting on the first anniversary of the grant date.

Read SEC document
February 14, 2021 Filed Feb 17, 2021 20:10 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 1,478 Not disclosed Not disclosed
Disclosure

SEC source: 0001567619-21-004233 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,360

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 14, 2021 Filed Feb 17, 2021 20:00 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionRestricted Stock Units · Derivative 1,478 $0.00 $0.00
Disclosure

SEC source: 0001567619-21-004231 · 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 · 1,478 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 14, 2020, the reporting person was granted 1,478 restricted stock units vesting on the first anniversary of the grant date.

F2 · derivative.expiration_date: On February 14, 2020, the reporting person was granted 1,478 restricted stock units vesting on the first anniversary of the grant date.

Read SEC document
February 14, 2021 Filed Feb 17, 2021 20:00 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 1,478 Not disclosed Not disclosed
Disclosure

SEC source: 0001567619-21-004231 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,360

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
November 06, 2020 Filed Nov 10, 2020 12:01 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 1,600 $74.79 $119,671.04
Disclosure

SEC source: 0001567619-20-018999 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · Director · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,882

Read SEC document
November 05, 2020 Filed Nov 6, 2020 16:54 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionEmployee Option (right to buy) · Derivative 24,996 $0.00 Strike: $44.42 $0.00
Disclosure

SEC source: 0001567619-20-018814 · 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 · 24,996 shares

Expires 2026-02-18

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, 2017, 2018 and 2019, respectively.

Read SEC document
November 05, 2020 Filed Nov 6, 2020 16:54 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 420 $74.54 $31,306.80
Disclosure

SEC source: 0001567619-20-018814 · doc1.xml · nonDerivative · entry 3

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,482

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $74.47 to $74.59, 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
November 05, 2020 Filed Nov 6, 2020 16:54 UTC WESTLAKE CORP WLK · Entity 3555 SaleCommon Stock 24,576 $73.98 $1,818,132.48
Disclosure

SEC source: 0001567619-20-018814 · doc1.xml · nonDerivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,902

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $73.45 to $74.44, 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 05, 2020 Filed Nov 6, 2020 16:54 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 24,996 $44.42 $1,110,322.32
Disclosure

SEC source: 0001567619-20-018814 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,478

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, 2020 Filed Mar 16, 2020 11:14 UTC Westlake Chemical Partners LP WLKP · Entity 5149 PurchaseCommon Units (Limited Partner Interests) 1,000 $14.91 $14,914.00
Disclosure

SEC source: 0001567619-20-006351 · doc1.xml · nonDerivative · entry 2

Bender Mark Steven · CIK 0001330417 · Director · SVP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

Read SEC document
March 12, 2020 Filed Mar 16, 2020 11:14 UTC Westlake Chemical Partners LP WLKP · Entity 5149 PurchaseCommon Units (Limited Partner Interests) 1,000 $15.07 $15,073.00
Disclosure

SEC source: 0001567619-20-006351 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · Director · SVP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,000

Read SEC document
February 18, 2020 Filed Feb 19, 2020 20:31 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 1,457 $60.52 $88,176.18
Disclosure

SEC source: 0001567619-20-004286 · doc1.xml · nonDerivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,482

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $60.50 to $60.8058, 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 17, 2020 Filed Feb 19, 2020 20:31 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionRestricted Stock Units · Derivative 5,375 $0.00 $0.00
Disclosure

SEC source: 0001567619-20-004286 · 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 · 5,375 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 17, 2017, the reporting person was granted 5,375 restricted stock units vesting on the third anniversary of the grant date.

F2 · derivative.expiration_date: On February 17, 2017, the reporting person was granted 5,375 restricted stock units vesting on the third anniversary of the grant date.

Read SEC document
February 17, 2020 Filed Feb 19, 2020 20:31 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionCommon Stock 5,375 Not disclosed Not disclosed
Disclosure

SEC source: 0001567619-20-004286 · doc1.xml · nonDerivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,939

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 14, 2020 Filed Feb 18, 2020 12:10 UTC WESTLAKE CORP WLK · Entity 3555 GrantRestricted Stock Units · Derivative 1,478 $0.00 $0.00
Disclosure

SEC source: 0001567619-20-004127 · doc1.xml · derivative · entry 3

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,478

Underlying: Common Stock · 1,478 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.

F4 · derivative.exercise_date: All of these restricted stock units will vest on February 14, 2021.

F4 · derivative.expiration_date: All of these restricted stock units will vest on February 14, 2021.

Read SEC document
February 14, 2020 Filed Feb 18, 2020 12:10 UTC WESTLAKE CORP WLK · Entity 3555 GrantRestricted Stock Units · Derivative 7,150 $0.00 $0.00
Disclosure

SEC source: 0001567619-20-004127 · doc1.xml · derivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,150

Underlying: Common Stock · 7,150 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 these restricted stock units will vest on February 14, 2023.

F3 · derivative.expiration_date: All of these restricted stock units will vest on February 14, 2023.

Read SEC document
February 14, 2020 Filed Feb 18, 2020 12:10 UTC WESTLAKE CORP WLK · Entity 3555 GrantEmployee Option (right to buy) · Derivative 30,243 $0.00 Strike: $65.81 $0.00
Disclosure

SEC source: 0001567619-20-004127 · doc1.xml · derivative · entry 1

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,243

Underlying: Common Stock · 30,243 shares

Expires 2030-02-14

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.

Read SEC document
December 03, 2019 Filed Dec 3, 2019 18:56 UTC WESTLAKE CORP WLK · Entity 3555 Tax withholdingCommon Stock 3,374 $67.01 $226,080.94
Disclosure

SEC source: 0001567619-19-022522 · doc1.xml · nonDerivative · entry 2

Bender Mark Steven · CIK 0001330417 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,564

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $67.01 to $66.7786, 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 01, 2019 Filed Dec 3, 2019 18:56 UTC WESTLAKE CORP WLK · Entity 3555 Exercise / conversionRestricted Stock Units · Derivative 8,324 $0.00 $0.00
Disclosure

SEC source: 0001567619-19-022522 · 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 · 8,324 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 December 1, 2016, the reporting person was granted 8,324 restricted stock units vesting on the third anniversary of the grant date.

F2 · derivative.expiration_date: On December 1, 2016, the reporting person was granted 8,324 restricted stock units vesting on the third anniversary of the grant date.

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.