Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| WESTLAKE CORPWLK · Entity 3555 | Director | August 14, 2026 | August 17, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
WESTLAKE CORP
Report date August 14, 2026 · Filed August 17, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Restricted Stock UnitsSEC Table II · derivative / convertible security | Direct | 2,184 |
Reported balance
After 2026-08-14 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2026-08-14 · Grant · Acquired 2,184 · Balance 2,184 F1: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. F2: All of the restricted stock units will vest on August 14, 2027. |
Filing footnotes · ownership attribution and instrument terms
F1: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.
F2: All of the restricted stock units will vest on August 14, 2027.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| August 14, 2026 Filed Aug 17, 2026 16:25 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 2,184 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-353621 · ownership.xml · derivative · entry 1 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,184 Underlying: Common Stock · 2,184 shares Expires not disclosed F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. F2 · derivative.exercise_date: All of the restricted stock units will vest on August 14, 2027. F2 · derivative.expiration_date: All of the restricted stock units will vest on August 14, 2027. Read SEC document |
| August 08, 2026 Filed Aug 10, 2026 17:50 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 2,168 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-341996 · ownership.xml · derivative · entry 3 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,168 Underlying: Common Stock · 2,168 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. F3 · derivative.exercise_date: On August 8, 2025 the reporting person was granted 2,168 restricted stock units vesting on the first anniversary of the grant date. F3 · derivative.expiration_date: On August 8, 2025 the reporting person was granted 2,168 restricted stock units vesting on the first anniversary of the grant date. Read SEC document |
| August 08, 2026 Filed Aug 10, 2026 17:50 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 2,168 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-26-341996 · ownership.xml · nonDerivative · entry 1 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,748 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. Read SEC document |
| August 09, 2025 Filed Aug 11, 2025 14:18 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 1,128 | $0.00 | $0.00 |
DisclosureSEC source: 0001974884-25-000004 · ownership.xml · derivative · entry 4 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 1,128 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. F4 · derivative.exercise_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date. F4 · derivative.expiration_date: On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date. Read SEC document |
| August 09, 2025 Filed Aug 11, 2025 14:18 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 1,128 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001974884-25-000004 · ownership.xml · nonDerivative · entry 1 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,580 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. Read SEC document |
| August 08, 2025 Filed Aug 11, 2025 14:18 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 2,168 | $0.00 | $0.00 |
DisclosureSEC source: 0001974884-25-000004 · ownership.xml · derivative · entry 3 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,168 Underlying: Common Stock · 2,168 shares Expires not disclosed F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. F3 · derivative.exercise_date: All of the restricted stock units will vest on August 8, 2026. F3 · derivative.expiration_date: All of the restricted stock units will vest on August 8, 2026. Read SEC document |
| August 11, 2024 Filed Aug 12, 2024 15:26 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 1,136 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-095200 · ownership.xml · derivative · entry 4 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 1,136 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. F4 · derivative.exercise_date: On August 11, 2023 the reporting person was granted 1,136 restricted stock units vesting on the first anniversary of the grant date. F4 · derivative.expiration_date: On August 11, 2023 the reporting person was granted 1,136 restricted stock units vesting on the first anniversary of the grant date. Read SEC document |
| August 11, 2024 Filed Aug 12, 2024 15:26 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 1,136 | Not disclosed | Not disclosed |
DisclosureSEC source: 0000950170-24-095200 · ownership.xml · nonDerivative · entry 1 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,452 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. Read SEC document |
| August 09, 2024 Filed Aug 12, 2024 15:26 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 1,128 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-095200 · ownership.xml · derivative · entry 3 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,128 Underlying: Common Stock · 1,128 shares Expires not disclosed F1 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. F3 · derivative.exercise_date: All of the restricted stock units will vest on August 9, 2025. F3 · derivative.expiration_date: All of the restricted stock units will vest on August 9, 2025. Read SEC document |
| May 12, 2024 Filed May 13, 2024 13:22 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 1,316 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-24-058259 · ownership.xml · derivative · entry 3 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 1,316 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 ("RSUs") convert into the Issuer's common stock on a one-for-one basis. F3 · derivative.exercise_date: On May 12, 2023, the reporting person was granted 1,316 RSUs vesting on the first anniversay of the grant date. F3 · derivative.expiration_date: On May 12, 2023, the reporting person was granted 1,316 RSUs vesting on the first anniversay of the grant date. Read SEC document |
| May 12, 2024 Filed May 13, 2024 13:22 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 1,316 | Not disclosed | Not disclosed |
DisclosureSEC source: 0000950170-24-058259 · ownership.xml · nonDerivative · entry 1 Chao Catherine T. · CIK 0001974884 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,316 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 ("RSUs") convert into the Issuer's common stock on a one-for-one basis. Read SEC document |
| August 31, 2023 Filed Sep 1, 2023 14:14 UTC | WESTLAKE CORP WLK · Entity 3555 | GiftCommon Stock | 19,423 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-23-047917 · doc4.xml · nonDerivative · entry 1 Chao Catherine T. · CIK 0001974884 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 19,423 F1 · ownership.nature: These shares are held in a trust for the benefit of the reporting person, who also serves as sole trustee. Read SEC document |
| August 11, 2023 Filed Aug 14, 2023 13:14 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 1,136 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-23-045501 · doc4.xml · derivative · entry 2 Chao Catherine T. · CIK 0001974884 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,136 Underlying: Common Stock · 1,136 shares Expires not disclosed F2 · derivative.exercise_price: Restricted stock units convert into the Issuer's common stock on a one-for-one basis. F3 · derivative.exercise_date: All of the restricted stock units will vest on August 11, 2024. F3 · derivative.expiration_date: All of the restricted stock units will vest on August 11, 2024. Read SEC document |
| May 12, 2023 Filed May 15, 2023 13:15 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 1,316 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-23-029244 · doc4.xml · derivative · entry 1 Chao Catherine T. · CIK 0001974884 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,316 Underlying: Common Stock · 1,316 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 May 12, 2024. F2 · derivative.expiration_date: All of the restricted stock units will vest on May 12, 2024. 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.