Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| WESTLAKE CORPWLK · Entity 3555 | SVP, HIP Segment Head | February 19, 2026 | February 23, 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 February 19, 2026 · Filed February 23, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 13,773 |
Ending reported balance
After 2026-02-20 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2026-02-19 · Grant · Acquired 365 · Balance 13,864 F1: Represents shares of common stock that vested on February 19, 2026, 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 ("PSUs") granted to the Reporting Person on February 17, 2023, under the terms of the Issuer's 2013 Omnibus Incentive Plan. Row 2 · 2026-02-20 · Tax withholding · Disposed 91 · Balance 13,773 F2: Shares otherwise issuable were witheld to satisfy tax obligations arising out of vesting of the Reporting Person's PSUs. |
| Employee Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $94.48 · Expires 2036-02-20 | Direct | 14,595 |
Reported balance
After 2026-02-20 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-02-20 · Grant · Acquired 14,595 · Balance 14,595 F3: The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2027, 2028 and 2029, respectively. |
| Restricted Stock UnitsSEC Table II · derivative / convertible security | Direct | 3,983 |
Reported balance
After 2026-02-20 transaction · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · 2026-02-20 · Grant · Acquired 3,983 · Balance 3,983 F4: Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock. F5: All of the RSUs will vest on February 20, 2029. |
Filing footnotes · ownership attribution and instrument terms
F1: Represents shares of common stock that vested on February 19, 2026, 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 ("PSUs") granted to the Reporting Person on February 17, 2023, under the terms of the Issuer's 2013 Omnibus Incentive Plan.
F2: Shares otherwise issuable were witheld to satisfy tax obligations arising out of vesting of the Reporting Person's PSUs.
F3: The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2027, 2028 and 2029, respectively.
F4: Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock.
F5: All of the RSUs will vest on February 20, 2029.
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 |
|---|---|---|---|---|---|---|
| February 20, 2026 Filed Feb 23, 2026 14:45 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 3,983 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-063707 · ownership.xml · derivative · entry 4 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,983 Underlying: Common Stock · 3,983 shares Expires not disclosed F4 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock. F5 · derivative.exercise_date: All of the RSUs will vest on February 20, 2029. F5 · derivative.expiration_date: All of the RSUs will vest on February 20, 2029. Read SEC document |
| February 20, 2026 Filed Feb 23, 2026 14:45 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantEmployee Option (right to buy) · Derivative | 14,595 | $0.00 Strike: $94.48 | $0.00 |
DisclosureSEC source: 0001193125-26-063707 · ownership.xml · derivative · entry 3 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,595 Underlying: Common Stock · 14,595 shares Expires 2036-02-20 F3 · derivative.exercise_date: The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2027, 2028 and 2029, respectively. Read SEC document |
| February 20, 2026 Filed Feb 23, 2026 14:45 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 91 | $94.10 | $8,563.10 |
DisclosureSEC source: 0001193125-26-063707 · ownership.xml · nonDerivative · entry 2 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,773 F2 · shares: Shares otherwise issuable were witheld to satisfy tax obligations arising out of vesting of the Reporting Person's PSUs. Read SEC document |
| February 19, 2026 Filed Feb 23, 2026 14:45 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantCommon Stock | 365 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-063707 · ownership.xml · nonDerivative · entry 1 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,864 F1 · shares: Represents shares of common stock that vested on February 19, 2026, 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 ("PSUs") granted to the Reporting Person on February 17, 2023, under the terms of the Issuer's 2013 Omnibus Incentive Plan. Read SEC document |
| February 18, 2026 Filed Feb 19, 2026 15:20 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 295 | $98.95 | $29,190.25 |
DisclosureSEC source: 0001193125-26-059219 · ownership.xml · nonDerivative · entry 2 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,499 F3 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs. Read SEC document |
| February 17, 2026 Filed Feb 19, 2026 15:20 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 977 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-059219 · ownership.xml · derivative · entry 3 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 977 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. F2 · derivative.exercise_date: On February 17, 2023, the reporting person was granted 977 RSUs vesting on the third anniversay of the grant date. F2 · derivative.expiration_date: On February 17, 2023, the reporting person was granted 977 RSUs vesting on the third anniversay of the grant date. Read SEC document |
| February 17, 2026 Filed Feb 19, 2026 15:20 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 977 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-059219 · ownership.xml · nonDerivative · entry 1 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,794 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 |
| October 02, 2025 Filed Oct 3, 2025 12:20 UTC | WESTLAKE CORP WLK · Entity 3555 | Tax withholdingCommon Stock | 3,842 | $76.70 | $294,681.40 |
DisclosureSEC source: 0001193125-25-229590 · ownership.xml · nonDerivative · entry 2 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,817 F3 · shares: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs. Read SEC document |
| October 01, 2025 Filed Oct 3, 2025 12:20 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionRestricted Stock Units · Derivative | 10,840 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-25-229590 · ownership.xml · derivative · entry 3 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 10,840 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. F2 · derivative.exercise_date: On October 1, 2021, the reporting person was granted 10,840 RSUs vesting on the fourth anniversay of the grant date. F2 · derivative.expiration_date: On October 1, 2021, the reporting person was granted 10,840 RSUs vesting on the fourth anniversay of the grant date. Read SEC document |
| October 01, 2025 Filed Oct 3, 2025 12:20 UTC | WESTLAKE CORP WLK · Entity 3555 | Exercise / conversionCommon Stock | 10,840 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-25-229590 · ownership.xml · nonDerivative · entry 1 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP Segment Head 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 16,659 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 |
| April 11, 2025 Filed Apr 15, 2025 18:00 UTC | WESTLAKE CORP WLK · Entity 3555 | GrantRestricted Stock Units · Derivative | 8,551 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-25-054370 · ownership.xml · derivative · entry 1 Szwejbka Scott Thomas · CIK 0002064540 · SVP, HIP 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,551 Underlying: Common Stock · 8,551 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock. F2 · derivative.exercise_date: All of the RSUs will vest on April 11, 2028. F2 · derivative.expiration_date: All of the RSUs will vest on April 11, 2028. 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.