[Form 4] Westlake Corporation Insider Trading Activity

Rhea-AI Filing Summary

Roger A. Cregg, a director of Westlake Corporation (WLK), reported an acquisition of 2,168 restricted stock units (RSUs) on 08/08/2025. The RSUs convert one-for-one into the issuer's common stock, and all units are scheduled to vest on 08/08/2026. The transaction is recorded as an acquisition (A) with an indicated price of $0, reflecting a grant of RSUs rather than a cash purchase. The reported ownership form is direct.

This filing documents an equity grant to a director that will become common shares if vesting conditions are met; no other purchases, sales, or derivative exercises are disclosed in this report.

Insights

Corporate Governance Expert

TL;DR: A director received a one-year-vesting RSU grant of 2,168 shares; this is a standard equity compensation disclosure.

This Form 4 shows a grant of 2,168 RSUs to Roger Cregg, reported as acquired on 08/08/2025 and vesting on 08/08/2026. The RSUs convert one-for-one to common stock and are recorded at $0, consistent with restricted-unit compensation rather than a market purchase. From a governance perspective, the filing documents routine director equity alignment with shareholders but contains no additional material changes to ownership percentages or control disclosed within this form.

Securities Analyst

TL;DR: The reported item is a small RSU grant to a director with a one-year vest; the filing itself is unlikely to be material to investors.

The report lists only 2,168 RSUs that will convert to common stock on a one-for-one basis and vest on 08/08/2026. No cash consideration or derivative transactions are reported. As presented, the disclosure documents director compensation and future potential dilution of 2,168 shares if vested and converted, but the form does not indicate any immediate market transaction or change in control.

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
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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^*

CREGG ROGER A

(Last) (First) (Middle)

2801 POST OAK BLVD., SUITE 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

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

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.

	Roger Cregg 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 Form 4 report for Westlake (WLK) show?

The report shows that director Roger A. Cregg was granted 2,168 restricted stock units (RSUs) on 08/08/2025, converting one-for-one to common stock.

When do the RSUs vest for the WLK Form 4?

All 2,168 RSUs are scheduled to vest on 08/08/2026 according to the filing.

Was there a cash purchase reported in the WLK Form 4 transaction?

No cash purchase was reported; the RSUs are recorded with an indicated price of $0, consistent with a grant of restricted stock units.

What is Roger Cregg's relationship to Westlake in this filing?

The filing identifies Roger A. Cregg as a Director of Westlake Corporation and the reported ownership is direct.

How many common shares will the RSUs convert into?

The RSUs convert on a one-for-one basis into common stock, so 2,168 RSUs will convert into 2,168 common shares upon vesting.