STOCK TITAN

[Form 4] Westlake Corporation Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Westlake Corporation (WLK) insider filing shows director Carolyn C. Sabat reported equity award activity on Form 4. The filing records restricted stock unit (RSU) transactions dated 08/08/2025 and 08/09/2025. The RSUs convert into common stock on a one-for-one basis and all RSUs will vest on August 8, 2026. The filing lists an acquisition of 2,168 RSUs on 08/08/2025 and a transaction involving 1,128 RSUs on 08/09/2025, with the entries showing the number of underlying common shares associated with each RSU line.

The reporting person is identified as a director of the issuer. The form is signed by Carolyn C. Sabat by POA J Feng and dated 08/11/2025. The document provides specific grant, conversion, and vesting details but does not include additional context such as exercise prices beyond $0 for the RSUs or the economic rationale for the transactions.

Westlake Corporation (WLK) — la segnalazione di un insider mostra che la direttrice Carolyn C. Sabat ha riportato attività relative a premi azionari nel Form 4. La comunicazione registra operazioni su unità azionarie vincolate (RSU) datate 08/08/2025 e 08/09/2025. Le RSU si convertono in azioni ordinarie con rapporto uno a uno e tutte le RSU matureranno l'8 agosto 2026. Il documento indica l'acquisizione di 2,168 RSU l'08/08/2025 e una transazione di 1,128 RSU l'08/09/2025, con le voci che mostrano il numero di azioni ordinarie sottostanti per ciascuna linea RSU.

La persona che effettua la segnalazione è indicata come direttrice dell'emittente. Il modulo è firmato da Carolyn C. Sabat tramite procura (POA) J Feng e datato 08/11/2025. Il documento fornisce dettagli specifici su assegnazione, conversione e maturazione, ma non include contesto aggiuntivo come prezzi di esercizio diversi da $0 per le RSU o le ragioni economiche delle operazioni.

Westlake Corporation (WLK) — la presentación de un insider muestra que la directora Carolyn C. Sabat informó actividad de premios de capital en el Form 4. El documento registra transacciones de unidades de acciones restringidas (RSU) fechadas 08/08/2025 y 08/09/2025. Las RSU se convierten en acciones comunes a razón de una por una y todas las RSU vencerán el 8 de agosto de 2026. El informe indica la adquisición de 2,168 RSU el 08/08/2025 y una transacción de 1,128 RSU el 08/09/2025, mostrando el número de acciones ordinarias subyacentes asociadas a cada partida de RSU.

La persona que informa está identificada como directora del emisor. El formulario está firmado por Carolyn C. Sabat por POA J Feng y con fecha 08/11/2025. El documento aporta detalles concretos sobre la concesión, conversión y vencimiento, pero no incluye contexto adicional, como precios de ejercicio distintos de $0 para las RSU ni la justificación económica de las operaciones.

Westlake Corporation (WLK)의 내부자 보고에 따르면 이사회 이사인 Carolyn C. SabatForm 4에 주식 보상 관련 거래를 보고했습니다. 보고서는 08/08/202508/09/2025자 제한주식단위(RSU) 거래를 기록하고 있습니다. RSU는 1대1 비율로 보통주로 전환되며 모든 RSU는 2026년 8월 8일에 완전히 권리가 확정(vest)됩니다. 서류에는 08/08/2025에 2,168 RSU 취득과 08/09/2025에 1,128 RSU 관련 거래가 기재되어 있으며, 각 RSU 항목에 해당하는 기초 보통주 수가 표시되어 있습니다.

신고자는 발행사의 이사로 명시되어 있습니다. 해당 양식은 Carolyn C. Sabat가 대리인(POA) J Feng을 통해 서명했으며 날짜는 08/11/2025로 기재되어 있습니다. 문서는 부여·전환·권리확정 관련 구체적인 내용을 제공하지만 RSU의 행사가격이 $0 이외인지 여부나 거래의 경제적 배경 등 추가적인 맥락은 포함하고 있지 않습니다.

Westlake Corporation (WLK) — la déclaration d'initié indique que l'administratrice Carolyn C. Sabat a signalé des opérations liées à des attributions d'actions dans le Form 4. Le document enregistre des transactions sur unités d'actions restreintes (RSU) datées 08/08/2025 et 08/09/2025. Les RSU se convertissent en actions ordinaires au taux d'une pour une et toutes les RSU seront acquises le 8 août 2026. La déclaration mentionne l'acquisition de 2,168 RSU le 08/08/2025 et une transaction de 1,128 RSU le 08/09/2025, en indiquant le nombre d'actions ordinaires sous-jacentes pour chaque ligne RSU.

La personne déclarante est identifiée comme administratrice de l'émetteur. Le formulaire est signé par Carolyn C. Sabat par procuration (POA) J Feng et daté 08/11/2025. Le document fournit des détails précis sur l'octroi, la conversion et l'acquisition des droits, mais n'apporte pas de contexte supplémentaire, comme des prix d'exercice autres que $0 pour les RSU ou la justification économique des opérations.

Westlake Corporation (WLK) — die Insider-Meldung zeigt, dass die Direktorin Carolyn C. Sabat Aktivitäten im Zusammenhang mit Aktienzuteilungen im Form 4 gemeldet hat. Die Einreichung verzeichnet Restricted Stock Unit (RSU)-Transaktionen datiert 08/08/2025 und 08/09/2025. Die RSUs werden eins zu eins in Stammaktien umgewandelt und alle RSUs werden am 8. August 2026 vollständig unverfallbar. Die Meldung listet den Erwerb von 2,168 RSUs am 08/08/2025 und eine Transaktion über 1,128 RSUs am 08/09/2025 auf, wobei die Einträge die Anzahl der zugrunde liegenden Stammaktien für jede RSU-Position angeben.

Die meldende Person ist als Direktorin des Emittenten ausgewiesen. Das Formular ist von Carolyn C. Sabat durch POA J Feng unterschrieben und datiert 08/11/2025. Das Dokument liefert konkrete Angaben zu Gewährung, Umwandlung und Vesting, enthält jedoch keinen weiteren Kontext wie Ausübungspreise außer $0 für die RSUs oder die wirtschaftliche Begründung der Transaktionen.

Positive
  • Clear disclosure of RSU awards with conversion terms: RSUs convert one-for-one into common stock
  • Explicit vesting schedule provided: all RSUs will vest on August 8, 2026
  • Reporting person identified as a director, improving transparency for investors
Negative
  • None.

Insights

TL;DR: Routine insider equity awards recorded; RSUs convert one-for-one and vest 08/08/2026.

The Form 4 documents compensation-related equity activity for director Carolyn C. Sabat. It shows a grant/acquisition event for 2,168 restricted stock units dated 08/08/2025 and a separate RSU-related transaction of 1,128 units dated 08/09/2025. The filing explicitly states RSUs convert into common stock on a one-for-one basis and that all RSUs will vest on August 8, 2026. The form is executed by POA J Feng on 08/11/2025. From a reporting perspective this is a clear, specific disclosure of equity compensation and resulting beneficial ownership changes; it contains no additional financial performance or cash transaction details.

TL;DR: Disclosure appears routine for director compensation; vesting schedule and conversion terms are clearly stated.

The filing identifies the reporting person as a director and discloses restricted stock units with explicit conversion (one-for-one) and a stated vesting date of August 8, 2026. The record includes transaction dates (08/08/2025 and 08/09/2025) and shows the numbers of RSUs involved (2,168 and 1,128). The presence of a POA signature and the clear explanatory notes meet standard disclosure expectations for director equity awards. The filing does not disclose any departures from routine award practice or governance concerns within the document itself.

Westlake Corporation (WLK) — la segnalazione di un insider mostra che la direttrice Carolyn C. Sabat ha riportato attività relative a premi azionari nel Form 4. La comunicazione registra operazioni su unità azionarie vincolate (RSU) datate 08/08/2025 e 08/09/2025. Le RSU si convertono in azioni ordinarie con rapporto uno a uno e tutte le RSU matureranno l'8 agosto 2026. Il documento indica l'acquisizione di 2,168 RSU l'08/08/2025 e una transazione di 1,128 RSU l'08/09/2025, con le voci che mostrano il numero di azioni ordinarie sottostanti per ciascuna linea RSU.

La persona che effettua la segnalazione è indicata come direttrice dell'emittente. Il modulo è firmato da Carolyn C. Sabat tramite procura (POA) J Feng e datato 08/11/2025. Il documento fornisce dettagli specifici su assegnazione, conversione e maturazione, ma non include contesto aggiuntivo come prezzi di esercizio diversi da $0 per le RSU o le ragioni economiche delle operazioni.

Westlake Corporation (WLK) — la presentación de un insider muestra que la directora Carolyn C. Sabat informó actividad de premios de capital en el Form 4. El documento registra transacciones de unidades de acciones restringidas (RSU) fechadas 08/08/2025 y 08/09/2025. Las RSU se convierten en acciones comunes a razón de una por una y todas las RSU vencerán el 8 de agosto de 2026. El informe indica la adquisición de 2,168 RSU el 08/08/2025 y una transacción de 1,128 RSU el 08/09/2025, mostrando el número de acciones ordinarias subyacentes asociadas a cada partida de RSU.

La persona que informa está identificada como directora del emisor. El formulario está firmado por Carolyn C. Sabat por POA J Feng y con fecha 08/11/2025. El documento aporta detalles concretos sobre la concesión, conversión y vencimiento, pero no incluye contexto adicional, como precios de ejercicio distintos de $0 para las RSU ni la justificación económica de las operaciones.

Westlake Corporation (WLK)의 내부자 보고에 따르면 이사회 이사인 Carolyn C. SabatForm 4에 주식 보상 관련 거래를 보고했습니다. 보고서는 08/08/202508/09/2025자 제한주식단위(RSU) 거래를 기록하고 있습니다. RSU는 1대1 비율로 보통주로 전환되며 모든 RSU는 2026년 8월 8일에 완전히 권리가 확정(vest)됩니다. 서류에는 08/08/2025에 2,168 RSU 취득과 08/09/2025에 1,128 RSU 관련 거래가 기재되어 있으며, 각 RSU 항목에 해당하는 기초 보통주 수가 표시되어 있습니다.

신고자는 발행사의 이사로 명시되어 있습니다. 해당 양식은 Carolyn C. Sabat가 대리인(POA) J Feng을 통해 서명했으며 날짜는 08/11/2025로 기재되어 있습니다. 문서는 부여·전환·권리확정 관련 구체적인 내용을 제공하지만 RSU의 행사가격이 $0 이외인지 여부나 거래의 경제적 배경 등 추가적인 맥락은 포함하고 있지 않습니다.

Westlake Corporation (WLK) — la déclaration d'initié indique que l'administratrice Carolyn C. Sabat a signalé des opérations liées à des attributions d'actions dans le Form 4. Le document enregistre des transactions sur unités d'actions restreintes (RSU) datées 08/08/2025 et 08/09/2025. Les RSU se convertissent en actions ordinaires au taux d'une pour une et toutes les RSU seront acquises le 8 août 2026. La déclaration mentionne l'acquisition de 2,168 RSU le 08/08/2025 et une transaction de 1,128 RSU le 08/09/2025, en indiquant le nombre d'actions ordinaires sous-jacentes pour chaque ligne RSU.

La personne déclarante est identifiée comme administratrice de l'émetteur. Le formulaire est signé par Carolyn C. Sabat par procuration (POA) J Feng et daté 08/11/2025. Le document fournit des détails précis sur l'octroi, la conversion et l'acquisition des droits, mais n'apporte pas de contexte supplémentaire, comme des prix d'exercice autres que $0 pour les RSU ou la justification économique des opérations.

Westlake Corporation (WLK) — die Insider-Meldung zeigt, dass die Direktorin Carolyn C. Sabat Aktivitäten im Zusammenhang mit Aktienzuteilungen im Form 4 gemeldet hat. Die Einreichung verzeichnet Restricted Stock Unit (RSU)-Transaktionen datiert 08/08/2025 und 08/09/2025. Die RSUs werden eins zu eins in Stammaktien umgewandelt und alle RSUs werden am 8. August 2026 vollständig unverfallbar. Die Meldung listet den Erwerb von 2,168 RSUs am 08/08/2025 und eine Transaktion über 1,128 RSUs am 08/09/2025 auf, wobei die Einträge die Anzahl der zugrunde liegenden Stammaktien für jede RSU-Position angeben.

Die meldende Person ist als Direktorin des Emittenten ausgewiesen. Das Formular ist von Carolyn C. Sabat durch POA J Feng unterschrieben und datiert 08/11/2025. Das Dokument liefert konkrete Angaben zu Gewährung, Umwandlung und Vesting, enthält jedoch keinen weiteren Kontext wie Ausübungspreise außer $0 für die RSUs oder die wirtschaftliche Begründung der Transaktionen.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Sabat Carolyn Chao

(Last) (First) (Middle)
2801 POST OAK BLVD., STE. 600

(Street)
HOUSTON TX 77056

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
WESTLAKE CORP [ WLK ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
08/08/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/09/2025 M 1,128 A (1) 3,580 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Units (1) 08/08/2025 A 2,168 (2) (2) Common Stock 2,168 $0 2,168 D
Restricted Stock Units (1) 08/09/2025 M 1,128 (3) (3) Common Stock 1,128 $0 0 D
Explanation of Responses:
1. Restricted stock units convert into the Issuer's common stock on a one-for-one basis.
2. All of the restricted stock units will vest on August 8, 2026.
3. On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.
Carolyn C. Sabat by J Feng POA 08/11/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did the WLK Form 4 filed by Carolyn C. Sabat report?

The Form 4 reports restricted stock unit transactions dated 08/08/2025 and 08/09/2025, including an acquisition of 2,168 RSUs and an RSU-related transaction of 1,128 units.

How do the RSUs reported for WLK convert into common stock?

The filing states the restricted stock units convert into the issuer's common stock on a one-for-one basis.

When do the reported RSUs for WLK vest?

All of the restricted stock units covered by this filing will vest on August 8, 2026.

What is Carolyn C. Sabat's relationship to Westlake (WLK)?

The Form 4 identifies Carolyn C. Sabat as a director of the issuer.

Who signed the Form 4 and when was it filed?

The form is signed as Carolyn C. Sabat by J Feng POA and dated 08/11/2025.
WESTLAKE CORPORATION

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