[Form 4] Westlake Corporation Insider Trading Activity

Rhea-AI Filing Summary

James Chao, Senior Chairman and Director of Westlake Corp (WLK), reported an insider disposition on Form 4. The filing shows a gift (Code G) of 15,140 shares on 08/28/2025 at a reported price of $0, leaving Mr. Chao with 39,741 shares beneficially owned after the transaction.

The Form 4 was signed by a power of attorney on 08/29/2025. No derivative transactions or additional details are reported.

Positive

• None.

Negative

• Insider disposition: James Chao disposed of 15,140 shares of Westlake (Code G), reducing his direct holdings to 39,741 shares.

Insights

Corporate Governance Expert

TL;DR: Insider reported a non-sale disposition (gift) of 15,140 Westlake shares, reducing direct holdings to 39,741 shares.

The filing documents a Code G transaction, which is a gift rather than a market sale, and thus does not directly signal cashing out or market pressure. As Senior Chairman and a director, the change in direct holdings is material for disclosure but appears to be a routine ownership change. The timely filing and clear ownership balance are consistent with standard Section 16 reporting practices.

Securities Analyst

TL;DR: Reported disposal of 15,140 shares via gift leaves 39,741 shares held; no options or derivatives disclosed.

The Form 4 shows only a non-derivative disposal coded as G with no cash consideration (price $0). There are no accompanying derivative positions or other transactions listed. For investors, the transaction documents an ownership reduction by a named insider but provides no information on motives, valuation events, or impact on company fundamentals.

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

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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^*

Chao James

(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
X	Officer (give title below)		Other (specify below)
	Senior Chairman

3. Date of Earliest Transaction (Month/Day/Year)
08/28/2025

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	08/28/2025		G		15,140	D	$0	39,741	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

Explanation of Responses:

	James Chao by J Feng POA	08/29/2025
	** 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 for Westlake (WLK) report?

The Form 4 reports a gift (Code G) of 15,140 shares by James Chao on 08/28/2025, leaving 39,741 shares beneficially owned.

Was the 08/28/2025 transaction a sale for cash?

No. The transaction is coded as a gift (G) with a reported price of $0, indicating no cash sale.

Does the Form 4 show any derivative transactions for WLK?

No. Table II for derivative securities contains no entries; only a non-derivative disposal is reported.

Who signed the Form 4 on behalf of the reporting person?

The Form 4 was signed by James Chao by J Feng POA on 08/29/2025, indicating a power of attorney signature.

What is James Chao's relationship to Westlake?

James Chao is listed as Senior Chairman and a Director of Westlake Corporation.