WLK Insider Filing: Graff Records 2,168 RSUs, Ownership 21,142 Shares

Rhea-AI Filing Summary

Michael J. Graff, a director of Westlake Corporation (WLK), filed a Form 4 reporting restricted stock unit activity and resulting ownership. The filing shows an acquisition on 08/08/2025 of 2,168 restricted stock units and a related transaction on 08/09/2025 affecting 1,128 restricted stock units. The document states restricted stock units convert into common stock one-for-one and that all restricted stock units will vest on August 8, 2026. The report lists a beneficial ownership of 21,142 common shares following the reported transactions. The form is signed by Michael Graff by POA on 08/11/2025.

Positive

• Director Michael J. Graff received 2,168 restricted stock units on 08/08/2025
• RSUs convert to common stock on a one-for-one basis
• Filing discloses clear vesting date: August 8, 2026

Negative

• None.

Insights

Financial Analyst

TL;DR: Director received RSUs increasing reported holdings to 21,142 shares; transactions are routine compensation/vesting events.

The Form 4 documents equity-based compensation activity for Director Michael J. Graff rather than an open-market purchase or sale. The filing explicitly reports acquisitions of restricted stock units on 08/08/2025 (2,168 RSUs) and a related entry on 08/09/2025 for 1,128 RSUs. The RSUs convert one-for-one into common stock and a vesting date of August 8, 2026 is specified. From an investor-materiality perspective, the filing documents insider compensation and ownership levels but does not present quantifiable information about economic impact, price paid, or shares representing a material percentage of outstanding equity.

Corporate Governance Expert

TL;DR: Filing indicates standard director equity awards and clear vesting mechanics; no governance red flags disclosed.

The disclosure shows restricted stock units granted/recorded for a director with explicit conversion and vesting terms: RSUs convert one-for-one into common shares and vest on a stated date. The report is signed by POA, and includes grant history (a 1,128 RSU grant dated 08/09/2024 vesting on its first anniversary). These are routine governance/compensation disclosures; the itemized entries and explanatory footnotes align with typical Section 16 reporting requirements. No departures from standard disclosure practice are evident in the text provided.

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^*

Graff Michael J

(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)	21,142	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.

	Michael Graff 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.
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FAQ

Who filed the Form 4 for Westlake (WLK)?

Michael J. Graff, identified as a director, filed the Form 4 (signed by POA J Feng dated 08/11/2025).

What transactions are reported on the WLK Form 4?

The filing reports an acquisition of 2,168 restricted stock units on 08/08/2025 and a related transaction affecting 1,128 restricted stock units on 08/09/2025.

How many Westlake (WLK) shares does Michael Graff beneficially own after these transactions?

The Form 4 lists a reported beneficial ownership of 21,142 common shares following the reported transactions.

When do the restricted stock units vest?

The filing states that all restricted stock units will vest on August 8, 2026, and notes a 1,128-RSU grant dated 08/09/2024 that vests on its first anniversary.

Do the restricted stock units convert to shares and at what ratio?

Yes. The document explicitly states the restricted stock units convert into the Issuer's common stock on a one-for-one basis.