4//SEC Filing
Chao David Tsung-Hung 4
Accession 0001726418-25-000004
CIK 0001262823other
Filed
Aug 10, 8:00 PM ET
Accepted
Aug 11, 10:17 AM ET
Size
9.7 KB
Accession
0001726418-25-000004
Insider Transaction Report
Form 4
Chao David Tsung-Hung
Director
Transactions
- Exercise/Conversion
Restricted Stock Units
2025-08-09−1,128→ 0 total→ Common Stock (1,128 underlying) - Exercise/Conversion
Common Stock
2025-08-09+1,128→ 8,912 total - Award
Restricted Stock Units
2025-08-08+2,168→ 2,168 total→ Common Stock (2,168 underlying)
Holdings
- 19,423(indirect: By Trust)
Common Stock
Footnotes (4)
- [F1]Restricted stock units convert into the Issuer's common stock on a one-for-one basis.
- [F2]These shares are held in a trust for the benefit of the reporting person, who also serves as sole trustee.
- [F3]All of the restricted stock units will vest on August 8, 2026.
- [F4]On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.
Documents
Issuer
WESTLAKE CORP
CIK 0001262823
Entity typeother
Related Parties
1- filerCIK 0001726418
Filing Metadata
- Form type
- 4
- Filed
- Aug 10, 8:00 PM ET
- Accepted
- Aug 11, 10:17 AM ET
- Size
- 9.7 KB