Westlake Corporation

WLK Basic Materials Specialty Chemicals

Westlake Corporation’s revenue for fiscal 2025 (year ended December 2025) was $11.2 billion, down 8.01% from fiscal 2024.

Revenue
+5.04%
EPS
+102.3%
Free cash flow
+486.0%
Total debt
+8.76%

Quarter to September 2026, against a year earlier

66.38 1.52 −2.24%
Market cap
$8.5B
P/E
0.0×
Fwd P/E
36.7×
Dividend yield
3.20%
F-score
3/9
Altman Z
1.65
Beneish M
−2.44
Dividend safety
8/100

Westlake Corporation (WLK) SEC filings, changes and red flags

Red flags

  • Officer departure

    Westlake Corporation reported the departure of an officer or director

    8-K filed · The filing · sec.gov

  • Impairment

    Westlake Corporation recorded a goodwill impairment of $727.0 million in fiscal Q3 2025

    10-Q filed · The filing · sec.gov

Filings

Form Period Filed What it reports Flags
10-Q Sep 30, 2026 P1I2: 10 added · 11 removed · 27 modified
P2I1A: no changes
8-K Nov 4, 2026 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Sep 24, 2026 2.05 Costs of exit or disposal activities; 7.01 Regulation FD disclosure
8-K Aug 31, 2026 5.02 Departure or appointment of directors or officers Officer departure
10-Q Jun 30, 2026 P1I2: 15 added · 7 removed · 31 modified
P2I1A: no changes
8-K Aug 4, 2026 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Jul 29, 2026 8.01 Other events
8-K Jun 15, 2026 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K May 14, 2026 5.07 Submission of matters to a vote of security holders
10-Q Mar 31, 2026
8-K May 5, 2026 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Apr 27, 2026 7.01 Regulation FD disclosure
8-K Apr 15, 2026 5.02 Departure or appointment of directors or officers; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Apr 13, 2026 8.01 Other events
8-K Apr 2, 2026 1.01 Entry into a material definitive agreement; 1.02 Termination of a material definitive agreement; 2.03 Creation of a direct financial obligation; 9.01 Financial statements and exhibits
8-K Mar 30, 2026 5.02 Departure or appointment of directors or officers
10-K Dec 31, 2025 1: 16 added · 17 removed · 52 modified
1A: 10 added · 74 removed · 67 modified
7: 31 added · 61 removed · 40 modified
8-K Feb 24, 2026 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Feb 19, 2026 5.02 Departure or appointment of directors or officers; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Jan 6, 2026 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Dec 12, 2025 2.05 Costs of exit or disposal activities; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Nov 10, 2025 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Nov 4, 2025 1.01 Entry into a material definitive agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Nov 4, 2025 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
10-Q Sep 30, 2025 Impairment
8-K Oct 30, 2025 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
10-Q Jun 30, 2025
8-K Aug 5, 2025 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
10-Q Mar 31, 2025
8-K May 2, 2025 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
10-K Dec 31, 2024
8-K Feb 24, 2025 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
10-Q Sep 30, 2024
8-K Nov 5, 2024 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
10-Q Jun 30, 2024
8-K Aug 6, 2024 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K May 1, 2024 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Feb 20, 2024 2.02 Results of operations and financial condition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits
8-K Feb 6, 2024 2.02 Results of operations and financial condition

From the company’s filings on sec.gov. Red flags are raised by rules over the filings’ own data and text; they are not investment advice.