Westlake (NYSE: WLK) VP receives new options and RSU awards

Rhea-AI Filing Summary

Westlake Corp vice president and chief accounting officer Jeffrey Adam Holy reported multiple equity awards and a small tax-related share disposition. On February 20, 2026, he was granted employee stock options covering 4,394 shares and restricted stock units (RSUs) for 1,199 and 2,540 shares, all at a grant price of $0.0000 per share.

According to the filing, the stock options vest in three installments of 33%, 33%, and 34% on February 20, 2027, February 20, 2028, and February 20, 2029, and all RSUs will vest on February 20, 2029. He also acquired 264 shares of common stock on February 19, 2026 upon performance stock unit vesting, while 81 shares were withheld at $94.10 per share to cover tax obligations.

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

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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^*

Holy Jeffrey Adam

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP and CAO

3. Date of Earliest Transaction (Month/Day/Year)
02/19/2026

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	02/19/2026		A		264(1)	A	$0	5,205	D
Common Stock	02/20/2026		F		81(2)	D	$94.1	5,124	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
Employee Option (right to buy)	$94.48	02/20/2026		A		4,394		(3)	02/20/2036	Common Stock	4,394	$0	4,394	D
Restricted Stock Units	(4)	02/20/2026		A		1,199		(5)	(5)	Common Stock	1,199	$0	1,199	D
Restricted Stock Units	(4)	02/20/2026		A		2,540		(5)	(5)	Common Stock	2,540	$0	2,540	D

Explanation of Responses:

1. Represents shares of common stock that vested on February 19, 2026, upon the determination by the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance stock units ("PSUs") granted to the Reporting Person on February 17, 2023, under the terms of the Issuer's 2013 Omnibus Incentive Plan.

2. Shares otherwise issuable were witheld to satisfy tax obligations arising out of vesting of the Reporting Person's PSUs.

3. The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2027, 2028 and 2029, respectively.

4. Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock.

5. All of the RSUs will vest on February 20, 2029.

	Jeffrey A. Holy by J. Feng, POA	02/23/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider equity awards did Westlake Corp (WLK) report for Jeffrey Adam Holy?

Jeffrey Adam Holy received several equity awards, including 4,394 employee stock options and two restricted stock unit grants of 1,199 and 2,540 units. All were granted on February 20, 2026, as part of his compensation with Westlake Corp.

How do the new stock options granted to Westlake Corp VP Jeffrey Adam Holy vest?

The 4,394 stock options vest in three installments: 33% on February 20, 2027, another 33% on February 20, 2028, and the final 34% on February 20, 2029. This schedule ties long-term incentives to continued service over three years.

When will Jeffrey Adam Holy’s new restricted stock units at Westlake Corp vest?

All of Jeffrey Adam Holy’s newly granted restricted stock units, totaling 1,199 and 2,540 units, are scheduled to vest on February 20, 2029. Each RSU represents a contingent right to receive one share of Westlake Corp common stock upon vesting.

Why did Jeffrey Adam Holy dispose of 81 shares of Westlake Corp common stock?

The 81-share disposition was a tax-withholding transaction at $94.10 per share, not an open-market sale. Shares otherwise issuable from performance stock unit vesting were withheld to satisfy tax obligations arising from that vesting event.

What triggered the 264-share common stock acquisition reported by Westlake Corp’s VP?

The 264-share acquisition on February 19, 2026, resulted from vesting of performance stock units granted on February 17, 2023. Vesting occurred after the compensation committee determined that the underlying performance criteria were satisfied under Westlake’s 2013 Omnibus Incentive Plan.