Roger A. Cregg Through Power - 10 Dec 2025 Form 4 Insider Report for WESTLAKE CORP (WLK)

Role
Director
Signature
Roger Cregg by J Feng POA
Issuer symbol
WLK
Transactions as of
10 Dec 2025
Net transactions value
$0
Form type
4
Filing time
10 Dec 2025, 14:47:38 UTC
Previous filing
11 Aug 2025
Next filing
03 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
CREGG ROGER A Director 2801 POST OAK BLVD., SUITE 600, HOUSTON Roger Cregg by J Feng POA 10 Dec 2025 0001231239

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WLK Common Stock Options Exercise +1,339 1,339 10 Dec 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction WLK Restricted Stock Units Options Exercise $0 -1,339 -100% $0.000000 0 10 Dec 2025 Common Stock 1,339 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Restricted stock units convert into the Issuer's common stock on a one-for-one basis.
F2 On December 10, 2024 the reporting person was granted 1,339 restricted stock units vesting on the first anniversary of the grant date.