Westlake director gets 2,184 RSUs vesting 2027

Graff Michael J reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Graff Michael J reported acquisition or exercise transactions in this Form 4 filing.

WESTLAKE CORP (WLK) director Michael J. Graff reported a compensation-related equity award. He received 2,184 Restricted Stock Units, each convertible into one share of the company’s common stock. All of these units are scheduled to vest on August 14, 2027, and his directly held RSU balance reported after the award is 2,184 units.

Insider Trade Summary

Grant/Award: 2,184 shares

Grant/Award 1 txn

Insider Graff Michael J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units F1, F2	2,184	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 2,184 contracts (Direct)

Footnotes (2)

1. F1. Restricted stock units convert into the Issuer's common stock on a one-for-one basis.
2. F2. All of the restricted stock units will vest on August 14, 2027.

Key Figures

Restricted Stock Units granted: 2,184 units Transaction price per RSU: $0.0000 per unit Underlying common shares: 2,184 shares +2 more

5 metrics

Restricted Stock Units granted 2,184 units Equity award reported for Michael J. Graff on August 14, 2026

Transaction price per RSU $0.0000 per unit Indicates a compensatory grant with no cash paid per unit

Underlying common shares 2,184 shares Each RSU converts into one share of WESTLAKE CORP common stock

Vesting date August 14, 2027 All granted Restricted Stock Units vest on this date

RSUs held after transaction 2,184 units Total directly held RSUs reported for Michael J. Graff after the award

Key Terms

Restricted Stock Units, vest, one-for-one basis

3 terms

Restricted Stock Units financial

"Restricted Stock Units convert into the Issuer's common stock on a one-for-one basis."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

vest financial

"All of the restricted stock units will vest on August 14, 2027."

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

one-for-one basis financial

"Restricted stock units convert into the Issuer's common stock on a one-for-one basis."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What equity award did WESTLAKE CORP (WLK) director Michael J. Graff report on this Form 4?

Michael J. Graff reported a grant of 2,184 Restricted Stock Units. These RSUs are a compensation-related equity award that convert into WESTLAKE CORP common stock on a one-for-one basis upon settlement.

When do Michael J. Graff’s newly granted RSUs in WESTLAKE CORP (WLK) vest?

All of the 2,184 Restricted Stock Units granted to Michael J. Graff will vest on August 14, 2027. Vesting means the units become earned, after which they can convert into common shares on a one-for-one basis.

How many WESTLAKE CORP (WLK) Restricted Stock Units does Michael J. Graff hold after this transaction?

Following this award, Michael J. Graff is reported as directly holding 2,184 Restricted Stock Units. These RSUs each represent the right to receive one share of WESTLAKE CORP common stock upon settlement, subject to vesting conditions.

What is the conversion ratio of Michael J. Graff’s RSUs into WESTLAKE CORP (WLK) common stock?

The granted Restricted Stock Units convert into WESTLAKE CORP’s common stock on a one-for-one basis. Each of the 2,184 RSUs corresponds to one share of common stock when the units settle, assuming vesting conditions are satisfied.

Did Michael J. Graff buy or sell WESTLAKE CORP (WLK) shares in the market in this Form 4?

No market purchase or sale is reported; this Form 4 shows a grant of 2,184 Restricted Stock Units. The transaction code is an award/acquisition, reflecting equity compensation rather than an open-market trade.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/17/2026 - 12:27 PM EDT Accepted by SEC EDGAR 08/17/2026 - 12:26 PM EDT Learn about SEC filing dates

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^*

Graff Michael J

(Last) (First) (Middle)

2801 POST OAK BLVD., STE. 600

(Street)

HOUSTON TEXAS 77056

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/14/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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)	08/14/2026		A		2,184		(2)	(2)	Common Stock	2,184	$0	2,184	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 14, 2027.

	Michael Graff by J Feng POA	08/17/2026
	** 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.
* Form 4: SEC 1474 (03-26)