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 |
|---|---|---|---|---|---|---|
| August 18, 2017 Filed Aug 21, 2017 23:30 UTC |
BLAKELY ROBERT TDirector
|
GrantRestricted Stock Units · Derivative | 1,721 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-032884 · doc1.xml · derivative · entry 1 BLAKELY ROBERT T · CIK 0001218020 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,721 Underlying: Common Stock · 1,721 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 18, 2018. F2 · derivative.expiration_date: All of the restricted stock units will vest on August 18, 2018. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 12:50 UTC |
LUKENS MAX LDirector
|
Exercise / conversionRestricted Stock Units · Derivative | 1,003 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-032561 · doc1.xml · derivative · entry 2 LUKENS MAX L · CIK 0001040101 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,006 Underlying: Common Stock · 1,003 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. F2 · derivative.exercise_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date. F2 · derivative.expiration_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 12:50 UTC |
LUKENS MAX LDirector
|
Exercise / conversionCommon Stock | 1,003 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-17-032561 · doc1.xml · nonDerivative · entry 1 LUKENS MAX L · CIK 0001040101 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 19,878 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 12:53 UTC |
RILEY H JOHN JRDirector
|
Exercise / conversionRestricted Stock Units · Derivative | 1,003 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-032563 · doc1.xml · derivative · entry 2 RILEY H JOHN JR · CIK 0001173593 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,006 Underlying: Common Stock · 1,003 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. F2 · derivative.exercise_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date. F2 · derivative.expiration_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 12:53 UTC |
RILEY H JOHN JRDirector
|
Exercise / conversionCommon Stock | 1,003 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-17-032563 · doc1.xml · nonDerivative · entry 1 RILEY H JOHN JR · CIK 0001173593 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,692 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 16:49 UTC |
Graff Michael JDirector
|
Exercise / conversionRestricted Stock Units · Derivative | 1,003 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-032560 · doc1.xml · derivative · entry 2 Graff Michael J · CIK 0001457009 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,006 Underlying: Common Stock · 1,003 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into Issuer's common stock on an one-to-one basis. F2 · derivative.exercise_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date. F2 · derivative.expiration_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 16:49 UTC |
Graff Michael JDirector
|
Exercise / conversionCommon Stock | 1,003 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-17-032560 · doc1.xml · nonDerivative · entry 1 Graff Michael J · CIK 0001457009 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,080 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into Issuer's common stock on an one-to-one basis. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 12:56 UTC |
Jenkins Dorothy CDirector · 10% owner
|
Exercise / conversionRestricted Stock Units · Derivative | 1,003 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-032565 · doc1.xml · derivative · entry 3 Jenkins Dorothy C · CIK 0001299504 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,006 Underlying: Common Stock · 1,003 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. F3 · derivative.exercise_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting on three equal installments beginning on the first anniversary of the grant date. F3 · derivative.expiration_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting on three equal installments beginning on the first anniversary of the grant date. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 12:56 UTC |
Jenkins Dorothy CDirector · 10% owner
|
Exercise / conversionCommon Stock | 1,003 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-17-032565 · doc1.xml · nonDerivative · entry 1 Jenkins Dorothy C · CIK 0001299504 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 46,118 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 12:53 UTC |
Jenkins Dorothy CDirector · 10% owner
|
Exercise / conversionRestricted Stock Units · Derivative | 1,003 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-032564 · doc1.xml · derivative · entry 3 Jenkins Dorothy C · CIK 0001299504 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,006 Underlying: Common Stock · 1,003 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. F3 · derivative.exercise_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting on three equal installments beginning on the first anniversary of the grant date. F3 · derivative.expiration_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting on three equal installments beginning on the first anniversary of the grant date. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 12:53 UTC |
Jenkins Dorothy CDirector · 10% owner
|
Exercise / conversionCommon Stock | 1,003 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-17-032564 · doc1.xml · nonDerivative · entry 1 Jenkins Dorothy C · CIK 0001299504 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 46,118 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 12:47 UTC |
Jenkins Dorothy CDirector · 10% owner
|
Exercise / conversionRestricted Stock Units · Derivative | 1,003 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-032558 · doc1.xml · derivative · entry 3 Jenkins Dorothy C · CIK 0001299504 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,006 Underlying: Common Stock · 1,003 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. F3 · derivative.exercise_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting on three equal installments beginning on the first anniversary of the grant date. F3 · derivative.expiration_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting on three equal installments beginning on the first anniversary of the grant date. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 12:47 UTC |
Jenkins Dorothy CDirector · 10% owner
|
Exercise / conversionCommon Stock | 1,003 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-17-032558 · doc1.xml · nonDerivative · entry 1 Jenkins Dorothy C · CIK 0001299504 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 46,118 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 16:51 UTC |
NORTHCUTT R BRUCEDirector
|
Exercise / conversionRestricted Stock Units · Derivative | 1,003 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-032562 · doc1.xml · derivative · entry 2 NORTHCUTT R BRUCE · CIK 0001307964 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,006 Underlying: Common Stock · 1,003 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into Issuer's common stock on an one-to-one basis. F2 · derivative.exercise_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date. F2 · derivative.expiration_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 16:51 UTC |
NORTHCUTT R BRUCEDirector
|
Exercise / conversionCommon Stock | 1,003 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-17-032562 · doc1.xml · nonDerivative · entry 1 NORTHCUTT R BRUCE · CIK 0001307964 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,080 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into Issuer's common stock on an one-to-one basis. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 16:48 UTC |
BLAKELY ROBERT TDirector
|
Exercise / conversionRestricted Stock Units · Derivative | 1,003 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-032559 · doc1.xml · derivative · entry 2 BLAKELY ROBERT T · CIK 0001218020 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,006 Underlying: Common Stock · 1,003 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. F2 · derivative.exercise_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date. F2 · derivative.expiration_date: On August 17, 2016, the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date. Read SEC document |
| August 17, 2017 Filed Aug 17, 2017 16:48 UTC |
BLAKELY ROBERT TDirector
|
Exercise / conversionCommon Stock | 1,003 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-17-032559 · doc1.xml · nonDerivative · entry 1 BLAKELY ROBERT T · CIK 0001218020 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,107 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into Issuer's common stock on an one-for-one basis. Read SEC document |
| August 17, 2017 Filed Sep 21, 2017 17:22 UTC Amendment |
RILEY H JOHN JRDirector
|
Exercise / conversionCommon Stock | 1,003 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001140361-17-036146 · doc1.xml · nonDerivative · entry 1 RILEY H JOHN JR · CIK 0001173593 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 21,692 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 convert into Issuer's common stock on a one-for-one basis. F1 · balance_after: The number of shares of common stock shown on the reporting person's original Form 4 filed on August 17, 2017 (and correspondingly on the subsequent Form 4 filed on August 22, 2017) was incorrectly reported due to a typo. Read SEC document |
| August 15, 2017 Filed Aug 16, 2017 20:56 UTC |
Bender Mark StevenExecutive VP & CFO
|
SaleCommon Stock | 13,794 | $70.22 | $968,620.20 |
DisclosureSEC source: 0001140361-17-032454 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · Executive VP & CFO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 44,449 F1 · price: In accordance with the Securities and Exchange Commission's No Action Letter dated June 25, 2008, we have aggregated the sales that occurred on August 15, 2017 for ease of reporting. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $70.00 to 70.45, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4. Read SEC document |
| August 14, 2017 Filed Aug 15, 2017 18:25 UTC |
Jenkins Dorothy CDirector · 10% owner
|
Exercise / conversionEmployee Option (right to buy) · Derivative | 3,840 | $0.00 Strike: $13.56 | $0.00 |
DisclosureSEC source: 0001140361-17-032365 · doc1.xml · derivative · entry 3 Jenkins Dorothy C · CIK 0001299504 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 3,840 shares Expires 2017-08-17 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. F1 · derivative.exercise_price: Values and amounts reflect the results of a two-for-one stock split on March 18, 2014. F2 · derivative.exercise_date: The stock options are exercisable in four equal annual installments beginning on the first anniversary of the grant date. Read SEC document |
| August 14, 2017 Filed Aug 15, 2017 18:25 UTC |
Jenkins Dorothy CDirector · 10% owner
|
Exercise / conversionCommon Stock | 3,840 | $13.56 | $52,080.00 |
DisclosureSEC source: 0001140361-17-032365 · doc1.xml · nonDerivative · entry 1 Jenkins Dorothy C · CIK 0001299504 · Director · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 45,115 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| May 17, 2017 Filed May 18, 2017 16:47 UTC |
Mangieri George JVP & Chief Accounting Officer
|
SaleCommon Stock | 6,578 | $62.21 | $409,197.65 |
DisclosureSEC source: 0001140361-17-021379 · doc1.xml · nonDerivative · entry 1 Mangieri George J · CIK 0001298504 · VP & Chief Accounting Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 6,577 F1 · price: In accordance with the Securities and Exchange Commission's No Action Letter dated June 25, 2008, we have aggregated the sales that occurred on May 8, 2017 for ease of reporting. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $62.1902 to $62.235, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4. Read SEC document |
| March 10, 2017 Filed Mar 13, 2017 20:01 UTC |
Bender Mark StevenSr VP, CFO and Treasurer
|
SaleCommon Stock | 12,000 | $64.32 | $771,784.80 |
DisclosureSEC source: 0001140361-17-011748 · doc1.xml · nonDerivative · entry 1 Bender Mark Steven · CIK 0001330417 · Sr VP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 58,243 F1 · price: In accordance with the Securities and Exchange Commission's No Action Letter dated June 25, 2008, we have aggregated the sales that occurred on March 10, 2017 for ease of reporting. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $63.78 to $64.59, inclusive. The reporting person undertakes to provide to Westlake Chemical Corporation, any security holder of Westlake Chemical Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4. Read SEC document |
| March 01, 2017 Filed Mar 3, 2017 18:47 UTC |
Buesinger Robert F.Sr. Vice President, Vinyls
|
Exercise / conversionEmployee Option (right to buy) · Derivative | 4,445 | $0.00 Strike: $44.42 | $0.00 |
DisclosureSEC source: 0001140361-17-010641 · doc1.xml · derivative · entry 5 Buesinger Robert F. · CIK 0001488587 · Sr. Vice President, Vinyls 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 45 Underlying: Common Stock · 4,445 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. F2 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 18, 2017, 2018, and 2019, respectively. Read SEC document |
| March 01, 2017 Filed Mar 3, 2017 18:47 UTC |
Buesinger Robert F.Sr. Vice President, Vinyls
|
Exercise / conversionEmployee Option (right to buy) · Derivative | 3,748 | $0.00 Strike: $45.70 | $0.00 |
DisclosureSEC source: 0001140361-17-010641 · doc1.xml · derivative · entry 4 Buesinger Robert F. · CIK 0001488587 · Sr. Vice President, Vinyls 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 3,748 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. F1 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 15, 2014, 2015, and 2016, respectively. Read SEC document |
| March 01, 2017 Filed Mar 3, 2017 18:47 UTC |
Buesinger Robert F.Sr. Vice President, Vinyls
|
SaleCommon Stock | 8,193 | $66.25 | $542,786.25 |
DisclosureSEC source: 0001140361-17-010641 · doc1.xml · nonDerivative · entry 3 Buesinger Robert F. · CIK 0001488587 · Sr. Vice President, Vinyls 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,309 Read SEC document |
| March 01, 2017 Filed Mar 3, 2017 18:47 UTC |
Buesinger Robert F.Sr. Vice President, Vinyls
|
Exercise / conversionCommon Stock | 4,445 | $44.42 | $197,446.90 |
DisclosureSEC source: 0001140361-17-010641 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · Sr. Vice President, Vinyls 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 17,502 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 01, 2017 Filed Mar 3, 2017 18:47 UTC |
Buesinger Robert F.Sr. Vice President, Vinyls
|
Exercise / conversionCommon Stock | 3,748 | $45.70 | $171,274.23 |
DisclosureSEC source: 0001140361-17-010641 · doc1.xml · nonDerivative · entry 1 Buesinger Robert F. · CIK 0001488587 · Sr. Vice President, Vinyls 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 13,057 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 23, 2017 Filed Feb 28, 2017 21:32 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
Exercise / conversionEmployee Option (right to buy) · Derivative | 42,180 | $0.00 Strike: $15.81 | $0.00 |
DisclosureSEC source: 0001140361-17-009660 · doc1.xml · derivative · entry 4 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 42,180 shares Expires 2017-02-23 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 equal installments on February 23, 2008, 2009 and 2010. Read SEC document |
| February 23, 2017 Filed Feb 28, 2017 21:32 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
SaleCommon Stock | 42,180 | $63.35 | $2,672,124.09 |
DisclosureSEC source: 0001140361-17-009660 · doc1.xml · nonDerivative · entry 2 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 274,018 F1 · price: In accordance with the Securities and Exchange Commission's No Action Letter dated June 25, 2008, we have aggregated the sales that occurred on February 23, 2017 for ease of reporting. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $63.28 to 63.49, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4. Read SEC document |
| February 23, 2017 Filed Feb 28, 2017 21:32 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
Exercise / conversionCommon Stock | 42,180 | $15.81 | $666,654.90 |
DisclosureSEC source: 0001140361-17-009660 · doc1.xml · nonDerivative · entry 1 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 316,198 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, 2017 Filed Feb 22, 2017 16:11 UTC |
Buesinger Robert F.Sr. Vice President, Vinyls
|
GrantRestricted Stock Units · Derivative | 3,306 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-008566 · doc1.xml · derivative · entry 2 Buesinger Robert F. · CIK 0001488587 · Sr. Vice President, Vinyls 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,306 Underlying: Common Stock · 3,306 shares Expires not disclosed F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. F3 · derivative.exercise_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). F3 · derivative.expiration_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 16:11 UTC |
Buesinger Robert F.Sr. Vice President, Vinyls
|
GrantEmployee Option (right to buy) · Derivative | 12,913 | $0.00 Strike: $61.87 | $0.00 |
DisclosureSEC source: 0001140361-17-008566 · doc1.xml · derivative · entry 1 Buesinger Robert F. · CIK 0001488587 · Sr. Vice President, Vinyls 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,913 Underlying: Common Stock · 12,913 shares Expires 2027-02-17 F1 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively. Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 16:10 UTC |
Kenner AndrewVP - Manufacturing
|
GrantRestricted Stock Units · Derivative | 2,647 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-008562 · doc1.xml · derivative · entry 2 Kenner Andrew · CIK 0001439749 · VP - Manufacturing 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,647 Underlying: Common Stock · 2,647 shares Expires not disclosed F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. F3 · derivative.exercise_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). F3 · derivative.expiration_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 16:10 UTC |
Kenner AndrewVP - Manufacturing
|
GrantEmployee Option (right to buy) · Derivative | 10,340 | $0.00 Strike: $61.87 | $0.00 |
DisclosureSEC source: 0001140361-17-008562 · doc1.xml · derivative · entry 1 Kenner Andrew · CIK 0001439749 · VP - Manufacturing 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,340 Underlying: Common Stock · 10,340 shares Expires 2027-02-17 F1 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively. Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 16:12 UTC |
Chao JamesDirector · Chairman · 10% owner
|
GrantRestricted Stock Units · Derivative | 15,922 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-008571 · doc1.xml · derivative · entry 2 Chao James · CIK 0001299505 · Director · Chairman · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,922 Underlying: Common Stock · 15,922 shares Expires not disclosed F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. F3 · derivative.exercise_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). F3 · derivative.expiration_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 16:12 UTC |
Chao JamesDirector · Chairman · 10% owner
|
GrantEmployee Option (right to buy) · Derivative | 62,197 | $0.00 Strike: $61.87 | $0.00 |
DisclosureSEC source: 0001140361-17-008571 · doc1.xml · derivative · entry 1 Chao James · CIK 0001299505 · Director · Chairman · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 62,197 Underlying: Common Stock · 62,197 shares Expires 2027-02-17 F1 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively. Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 21:12 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
GrantRestricted Stock Units · Derivative | 19,902 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-008572 · doc1.xml · derivative · entry 2 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 19,902 Underlying: Common Stock · 19,902 shares Expires not disclosed F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. F3 · derivative.exercise_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). F3 · derivative.expiration_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 21:12 UTC |
Chao AlbertDirector · President & CEO · 10% owner
|
GrantEmployee Option (right to buy) · Derivative | 77,746 | $0.00 Strike: $61.87 | $0.00 |
DisclosureSEC source: 0001140361-17-008572 · doc1.xml · derivative · entry 1 Chao Albert · CIK 0001299403 · Director · President & CEO · 10% owner 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 77,746 Underlying: Common Stock · 77,746 shares Expires 2027-02-17 F1 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively. Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 16:09 UTC |
Mangieri George JVP & Chief Accounting Officer
|
GrantRestricted Stock Units · Derivative | 1,156 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-008558 · doc1.xml · derivative · entry 2 Mangieri George J · CIK 0001298504 · VP & Chief Accounting Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,156 Underlying: Common Stock · 1,156 shares Expires not disclosed F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. F3 · derivative.exercise_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). F3 · derivative.expiration_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 16:09 UTC |
Mangieri George JVP & Chief Accounting Officer
|
GrantEmployee Option (right to buy) · Derivative | 4,515 | $0.00 Strike: $61.87 | $0.00 |
DisclosureSEC source: 0001140361-17-008558 · doc1.xml · derivative · entry 1 Mangieri George J · CIK 0001298504 · VP & Chief Accounting Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,515 Underlying: Common Stock · 4,515 shares Expires 2027-02-17 F1 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively. Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 21:11 UTC |
Ederington L. BenjaminVP, General Counsel, Corp Secy
|
GrantRestricted Stock Units · Derivative | 3,516 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-008569 · doc1.xml · derivative · entry 2 Ederington L. Benjamin · CIK 0001588279 · VP, General Counsel, Corp Secy 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,516 Underlying: Common Stock · 3,516 shares Expires not disclosed F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. F3 · derivative.exercise_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). F3 · derivative.expiration_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 21:11 UTC |
Ederington L. BenjaminVP, General Counsel, Corp Secy
|
GrantEmployee Option (right to buy) · Derivative | 13,734 | $0.00 Strike: $61.87 | $0.00 |
DisclosureSEC source: 0001140361-17-008569 · doc1.xml · derivative · entry 1 Ederington L. Benjamin · CIK 0001588279 · VP, General Counsel, Corp Secy 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 13,734 Underlying: Common Stock · 13,734 shares Expires 2027-02-17 F1 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively. Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 21:10 UTC |
Bender Mark StevenSr VP, CFO and Treasurer
|
GrantRestricted Stock Units · Derivative | 5,375 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-008564 · doc1.xml · derivative · entry 2 Bender Mark Steven · CIK 0001330417 · Sr VP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,375 Underlying: Common Stock · 5,375 shares Expires not disclosed F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. F3 · derivative.exercise_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). F3 · derivative.expiration_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 21:10 UTC |
Bender Mark StevenSr VP, CFO and Treasurer
|
GrantEmployee Option (right to buy) · Derivative | 20,995 | $0.00 Strike: $61.87 | $0.00 |
DisclosureSEC source: 0001140361-17-008564 · doc1.xml · derivative · entry 1 Bender Mark Steven · CIK 0001330417 · Sr VP, CFO and Treasurer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,995 Underlying: Common Stock · 20,995 shares Expires 2027-02-17 F1 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively. Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 21:10 UTC |
Teel Lawrence E.SVP, Olefins
|
GrantRestricted Stock Units · Derivative | 2,647 | $0.00 | $0.00 |
DisclosureSEC source: 0001140361-17-008560 · doc1.xml · derivative · entry 2 Teel Lawrence E. · CIK 0001551480 · SVP, Olefins 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,647 Underlying: Common Stock · 2,647 shares Expires not disclosed F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. F3 · derivative.exercise_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). F3 · derivative.expiration_date: The restricted stock units will vest 3 years from the date of grant (February 17, 2020). Read SEC document |
| February 17, 2017 Filed Feb 22, 2017 21:10 UTC |
Teel Lawrence E.SVP, Olefins
|
GrantEmployee Option (right to buy) · Derivative | 10,340 | $0.00 Strike: $61.87 | $0.00 |
DisclosureSEC source: 0001140361-17-008560 · doc1.xml · derivative · entry 1 Teel Lawrence E. · CIK 0001551480 · SVP, Olefins 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,340 Underlying: Common Stock · 10,340 shares Expires 2027-02-17 F1 · derivative.exercise_date: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively. Read SEC document |
| February 15, 2017 Filed Feb 16, 2017 16:15 UTC |
Mattina Michael J.Sr. VP, Polyethylene
|
Tax withholdingCommon Stock | 217 | $64.01 | $13,890.17 |
DisclosureSEC source: 0001140361-17-007939 · doc1.xml · nonDerivative · entry 2 Mattina Michael J. · CIK 0001638948 · Sr. VP, Polyethylene 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 6,506 Read SEC document |
| February 15, 2017 Filed Feb 16, 2017 16:16 UTC |
Buesinger Robert F.Sr. Vice President, Vinyls
|
Tax withholdingCommon Stock | 520 | $64.01 | $33,285.20 |
DisclosureSEC source: 0001140361-17-007940 · doc1.xml · nonDerivative · entry 2 Buesinger Robert F. · CIK 0001488587 · Sr. Vice President, Vinyls 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,309 Read SEC document |
| February 15, 2017 Filed Feb 16, 2017 16:18 UTC |
Kenner AndrewVP - Manufacturing
|
Tax withholdingCommon Stock | 522 | $64.01 | $33,413.22 |
DisclosureSEC source: 0001140361-17-007943 · doc1.xml · nonDerivative · entry 2 Kenner Andrew · CIK 0001439749 · VP - Manufacturing 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,707 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.