Last 12 months
Inside the activity.
0 purchase rows · 9 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 0 |
| Dec 2025 | 0 | 3 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 0 | 2 |
| Mar 2026 | 0 | 2 |
| Apr 2026 | 0 | 0 |
| May 2026 | 0 | 0 |
| Jun 2026 | 0 | 0 |
| Jul 2026 | 0 | 0 |
| Aug 2026 | 0 | 2 |
| Sep 2026 | 0 | 0 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
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 date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| March 08, 2021 Filed Mar 9, 2021 07:58 UTC |
Buesinger Robert F.EVP, Vinyl Products
|
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 |
Buesinger Robert F.EVP, Vinyl Products
|
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 25, 2021 Filed Feb 26, 2021 13:36 UTC |
Teel Lawrence E.EVP and Special Advisor to CEO
|
SaleCommon Stock | 4,902 | $87.14 | $427,160.28 |
DisclosureSEC source: 0001567619-21-004978 · doc1.xml · nonDerivative · entry 6 Teel Lawrence E. · CIK 0001551480 · EVP and Special Advisor to CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,903 Read SEC document |
| February 25, 2021 Filed Feb 26, 2021 13:36 UTC |
Teel Lawrence E.EVP and Special Advisor to CEO
|
SaleCommon Stock | 28,547 | $86.93 | $2,481,505.07 |
DisclosureSEC source: 0001567619-21-004978 · doc1.xml · nonDerivative · entry 5 Teel Lawrence E. · CIK 0001551480 · EVP and Special Advisor to CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,805 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $86.85 to $87.38, 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 25, 2021 Filed Feb 26, 2021 13:36 UTC |
Teel Lawrence E.EVP and Special Advisor to CEO
|
Exercise / conversionCommon Stock | 6,928 | $61.87 | $428,600.72 |
DisclosureSEC source: 0001567619-21-004978 · doc1.xml · nonDerivative · entry 4 Teel Lawrence E. · CIK 0001551480 · EVP and Special Advisor to CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 38,352 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 25, 2021 Filed Feb 26, 2021 13:36 UTC |
Teel Lawrence E.EVP and Special Advisor to CEO
|
Exercise / conversionCommon Stock | 9,698 | $79.83 | $774,191.34 |
DisclosureSEC source: 0001567619-21-004978 · doc1.xml · nonDerivative · entry 3 Teel Lawrence E. · CIK 0001551480 · EVP and Special Advisor to CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 31,424 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 25, 2021 Filed Feb 26, 2021 13:36 UTC |
Teel Lawrence E.EVP and Special Advisor to CEO
|
Exercise / conversionCommon Stock | 7,861 | $65.81 | $517,352.06 |
DisclosureSEC source: 0001567619-21-004978 · doc1.xml · nonDerivative · entry 2 Teel Lawrence E. · CIK 0001551480 · EVP and Special Advisor to CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,726 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 25, 2021 Filed Feb 26, 2021 13:36 UTC |
Teel Lawrence E.EVP and Special Advisor to CEO
|
Exercise / conversionCommon Stock | 4,060 | $44.42 | $180,345.20 |
DisclosureSEC source: 0001567619-21-004978 · doc1.xml · nonDerivative · entry 1 Teel Lawrence E. · CIK 0001551480 · EVP and Special Advisor to CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 13,865 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 25, 2021 Filed Feb 26, 2021 13:35 UTC |
Zoeller Johnathan StevanVP and CAO
|
Exercise / conversionEmployee Option (right to buy) · Derivative | 1,006 | $0.00 Strike: $65.81 | $0.00 |
DisclosureSEC source: 0001567619-21-004976 · doc1.xml · derivative · entry 3 Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,044 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. Read SEC document |
| February 25, 2021 Filed Feb 26, 2021 13:35 UTC |
Zoeller Johnathan StevanVP and CAO
|
SaleCommon Stock | 1,006 | $86.94 | $87,456.61 |
DisclosureSEC source: 0001567619-21-004976 · doc1.xml · nonDerivative · entry 2 Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Read SEC document |
| February 25, 2021 Filed Feb 26, 2021 13:35 UTC |
Zoeller Johnathan StevanVP and CAO
|
Exercise / conversionCommon Stock | 1,006 | $65.81 | $66,207.38 |
DisclosureSEC source: 0001567619-21-004976 · doc1.xml · nonDerivative · entry 1 Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,006 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 |
Buesinger Robert F.EVP, Vinyl Products
|
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 |
Buesinger Robert F.EVP, Vinyl Products
|
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 19, 2021 Filed Feb 22, 2021 08:34 UTC |
Kenner AndrewSVP, Operations
|
GrantRestricted Stock Units · Derivative | 2,717 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-21-004537 · doc1.xml · derivative · entry 2 Kenner Andrew · CIK 0001439749 · SVP, Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,717 Underlying: Common Stock · 2,717 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 08:34 UTC |
Kenner AndrewSVP, Operations
|
GrantEmployee Option (right to buy) · Derivative | 9,336 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC source: 0001567619-21-004537 · doc1.xml · derivative · entry 1 Kenner Andrew · CIK 0001439749 · SVP, Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,336 Underlying: Common Stock · 9,336 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 19, 2021 Filed Feb 22, 2021 08:32 UTC |
Chao JamesDirector · Chairman · 10% owner
|
GrantRestricted Stock Units · Derivative | 10,774 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-21-004534 · doc1.xml · derivative · entry 2 Chao James · CIK 0001299505 · Director · Chairman · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,774 Underlying: Common Stock · 10,774 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 08:32 UTC |
Chao JamesDirector · Chairman · 10% owner
|
GrantEmployee Option (right to buy) · Derivative | 37,026 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC source: 0001567619-21-004534 · doc1.xml · derivative · entry 1 Chao James · CIK 0001299505 · Director · Chairman · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 37,026 Underlying: Common Stock · 37,026 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 19, 2021 Filed Feb 22, 2021 13:31 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
GrantRestricted Stock Units · Derivative | 19,810 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-21-004533 · doc1.xml · derivative · entry 2 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 19,810 Underlying: Common Stock · 19,810 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 13:31 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
GrantEmployee Option (right to buy) · Derivative | 68,074 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC source: 0001567619-21-004533 · doc1.xml · derivative · entry 1 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 68,074 Underlying: Common Stock · 68,074 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 19, 2021 Filed Feb 22, 2021 13:35 UTC |
Zoeller Johnathan StevanVP and CAO
|
GrantRestricted Stock Units · Derivative | 866 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-21-004538 · doc1.xml · derivative · entry 2 Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 866 Underlying: Common Stock · 866 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 13:35 UTC |
Zoeller Johnathan StevanVP and CAO
|
GrantEmployee Option (right to buy) · Derivative | 2,975 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC source: 0001567619-21-004538 · doc1.xml · derivative · entry 1 Zoeller Johnathan Stevan · CIK 0001803678 · VP and CAO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,975 Underlying: Common Stock · 2,975 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 19, 2021 Filed Feb 22, 2021 13:33 UTC |
Kearns Roger L.EVP and COO
|
GrantRestricted Stock Units · Derivative | 5,470 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-21-004536 · doc1.xml · derivative · entry 2 Kearns Roger L. · CIK 0001739128 · EVP and COO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,470 Underlying: Common Stock · 5,470 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 13:33 UTC |
Kearns Roger L.EVP and COO
|
GrantEmployee Option (right to buy) · Derivative | 18,796 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC source: 0001567619-21-004536 · doc1.xml · derivative · entry 1 Kearns Roger L. · CIK 0001739128 · EVP and COO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 18,796 Underlying: Common Stock · 18,796 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 19, 2021 Filed Feb 22, 2021 13:30 UTC |
Bender Mark StevenEVP and CFO
|
GrantRestricted Stock Units · Derivative | 5,558 | $0.00 | $0.00 |
DisclosureSEC 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 |
Bender Mark StevenEVP and CFO
|
GrantEmployee Option (right to buy) · Derivative | 19,100 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC 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 19, 2021 Filed Feb 22, 2021 13:33 UTC |
Ederington L. BenjaminSVP, GC, CAO and Secretary
|
GrantRestricted Stock Units · Derivative | 4,388 | $0.00 | $0.00 |
DisclosureSEC source: 0001567619-21-004535 · doc1.xml · derivative · entry 2 Ederington L. Benjamin · CIK 0001588279 · SVP, GC, CAO and Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,388 Underlying: Common Stock · 4,388 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 13:33 UTC |
Ederington L. BenjaminSVP, GC, CAO and Secretary
|
GrantEmployee Option (right to buy) · Derivative | 15,079 | $0.00 Strike: $86.54 | $0.00 |
DisclosureSEC source: 0001567619-21-004535 · doc1.xml · derivative · entry 1 Ederington L. Benjamin · CIK 0001588279 · SVP, GC, CAO and Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,079 Underlying: Common Stock · 15,079 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 |
Buesinger Robert F.EVP, Vinyl Products
|
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 18, 2021 Filed Feb 18, 2021 17:25 UTC |
Kenner AndrewSVP, Operations
|
Tax withholdingCommon Stock | 476 | $85.08 | $40,497.60 |
DisclosureSEC source: 0001567619-21-004431 · doc1.xml · nonDerivative · entry 2 Kenner Andrew · CIK 0001439749 · SVP, Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 13,464 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 $85.71, 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 18, 2021 Filed Feb 18, 2021 17:27 UTC |
Chao JamesDirector · Chairman · 10% owner
|
Tax withholdingCommon Stock | 2,537 | $85.08 | $215,855.57 |
DisclosureSEC source: 0001567619-21-004432 · doc1.xml · nonDerivative · entry 2 Chao James · CIK 0001299505 · Director · Chairman · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 84,092 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 $85.83, 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 18, 2021 Filed Feb 18, 2021 22:29 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
Tax withholdingCommon Stock | 3,685 | $85.08 | $313,516.12 |
DisclosureSEC source: 0001567619-21-004433 · doc1.xml · nonDerivative · entry 2 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 438,939 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 $85.71, 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 18, 2021 Filed Feb 18, 2021 22:32 UTC |
Bender Mark StevenEVP and CFO
|
Tax withholdingCommon Stock | 808 | $85.08 | $68,746.26 |
DisclosureSEC 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 18, 2021 Filed Feb 18, 2021 22:24 UTC |
Teel Lawrence E.EVP and Special Advisor to CEO
|
Tax withholdingCommon Stock | 572 | $85.08 | $48,666.90 |
DisclosureSEC source: 0001567619-21-004428 · doc1.xml · nonDerivative · entry 2 Teel Lawrence E. · CIK 0001551480 · EVP and Special Advisor to CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,805 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 $85.83, 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 |
Buesinger Robert F.EVP, Vinyl Products
|
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 |
Buesinger Robert F.EVP, Vinyl Products
|
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 |
Buesinger Robert F.EVP, Vinyl Products
|
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 |
Buesinger Robert F.EVP, Vinyl Products
|
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 17, 2021 14:49 UTC |
Kenner AndrewSVP, Operations
|
Tax withholdingCommon Stock | 3 | $88.04 | $264.12 |
DisclosureSEC source: 0001567619-21-004223 · doc1.xml · nonDerivative · entry 3 Kenner Andrew · CIK 0001439749 · SVP, Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,016 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 14:49 UTC |
Kenner AndrewSVP, Operations
|
Tax withholdingCommon Stock | 248 | $85.73 | $21,261.04 |
DisclosureSEC source: 0001567619-21-004223 · doc1.xml · nonDerivative · entry 2 Kenner Andrew · CIK 0001439749 · SVP, Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,019 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 14:33 UTC |
Kenner AndrewSVP, Operations
|
Tax withholdingCommon Stock | 3 | $88.04 | $264.12 |
DisclosureSEC source: 0001567619-21-004215 · doc1.xml · nonDerivative · entry 3 Kenner Andrew · CIK 0001439749 · SVP, Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,016 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 14:33 UTC |
Kenner AndrewSVP, Operations
|
Tax withholdingCommon Stock | 248 | $85.73 | $21,261.04 |
DisclosureSEC source: 0001567619-21-004215 · doc1.xml · nonDerivative · entry 2 Kenner Andrew · CIK 0001439749 · SVP, Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,019 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 14:01 UTC |
Chao JamesDirector · Chairman · 10% owner
|
Tax withholdingCommon Stock | 8 | $87.70 | $701.60 |
DisclosureSEC source: 0001567619-21-004206 · doc1.xml · nonDerivative · entry 3 Chao James · CIK 0001299505 · Director · Chairman · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 77,149 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 14:01 UTC |
Chao JamesDirector · Chairman · 10% owner
|
Tax withholdingCommon Stock | 784 | $85.73 | $67,212.32 |
DisclosureSEC source: 0001567619-21-004206 · doc1.xml · nonDerivative · entry 2 Chao James · CIK 0001299505 · Director · Chairman · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 77,157 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 19:44 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
Tax withholdingCommon Stock | 971 | $85.73 | $83,243.83 |
DisclosureSEC source: 0001567619-21-004220 · doc1.xml · nonDerivative · entry 3 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 430,641 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 19:44 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
Tax withholdingCommon Stock | 10 | $87.69 | $876.90 |
DisclosureSEC source: 0001567619-21-004220 · doc1.xml · nonDerivative · entry 2 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 431,612 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 18:47 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
Tax withholdingCommon Stock | 971 | $85.73 | $83,243.83 |
DisclosureSEC source: 0001567619-21-004202 · doc1.xml · nonDerivative · entry 3 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 430,641 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 18:47 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
Tax withholdingCommon Stock | 10 | $87.69 | $876.90 |
DisclosureSEC source: 0001567619-21-004202 · doc1.xml · nonDerivative · entry 2 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 431,612 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 20:15 UTC |
Teel Lawrence E.EVP and Special Advisor to CEO
|
Tax withholdingCommon Stock | 3 | $87.43 | $262.30 |
DisclosureSEC source: 0001567619-21-004238 · doc1.xml · nonDerivative · entry 3 Teel Lawrence E. · CIK 0001551480 · EVP and Special Advisor to CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 8,082 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 20:15 UTC |
Teel Lawrence E.EVP and Special Advisor to CEO
|
Tax withholdingCommon Stock | 319 | $85.73 | $27,347.87 |
DisclosureSEC source: 0001567619-21-004238 · doc1.xml · nonDerivative · entry 2 Teel Lawrence E. · CIK 0001551480 · EVP and Special Advisor to CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 8,085 Read SEC document |
| February 16, 2021 Filed Feb 17, 2021 20:10 UTC |
Bender Mark StevenEVP and CFO
|
Tax withholdingCommon Stock | 4 | $87.38 | $349.52 |
DisclosureSEC 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.