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WESTLAKE CORP

For the period ended Jun 30, 2026. Filed Aug 5, 2026.

View on SEC.gov

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2026 · Filed Aug 5, 2026

WLK$63.49-4.2%Stored close · as of Nov 6, 2026

What changed in Risk Factors?

Read the current filing

Previous report: 10-Q

Period ended 2026-03-31; filed 2026-05-06.

0001262823-26-000022

Item 1A. Risk Factors2)Unregistered Sales of Equity Securities and Use of Proceeds

Current report: 10-Q

Period ended 2026-06-30; filed 2026-08-05.

0001262823-26-000032

Item 1A. Risk Factors2)Unregistered Sales of Equity Securities and Use of Proceeds

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 4 previous paragraphs and 4 current paragraphs.

2 unchanged; 2 reworded; 0 added; 0 removed; 0 previous and 0 current paragraphs rearranged.

Tables are not compared: 1 previous and 1 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Reworded paragraphs (2)

Previous wording

(1) Includes 49,686 shares withheld in February 2026, in satisfaction of withholding taxes due upon the vesting of restricted stock units granted to our employees under the 2013 Omnibus Incentive Plan (as amended and restated effective May 11, 2023).

Current wording

(1) Includes 91, 10,568 and 152 shares withheld in April 2026, May 2026 and June 2026, respectively, in satisfaction of withholding taxes due upon the vesting of restricted stock units granted to our employees under the 2013 Omnibus Incentive Plan (as amended and restated effective May 11, 2023).

Previous wording

(2) In November 2014, our Board of Directors authorized a $250 million stock repurchase program (the "2014 Program"). In November 2015, our Board of Directors approved the expansion of the 2014 Program by an additional $150 million. In August 2018, our Board of Directors approved the further expansion of the existing 2014 Program by an additional$150 million. In August 2022, our Board of Directors approved the further expansion of the existing 2014 Program by an additional $500 million. There were repurchases of 1,400 common stock under the 2014 Program during the three months ended March 31, 2026. As of March 31, 2026, 9,929,683 shares of our common stock had been acquired at an aggregate purchase price of approximately$697 million under the 2014 Program. Transaction fees and commissions are not reported in the average price paid per share in the table above. Decisions regarding the amount and the timing of purchases under the 2014 Program will be influenced by our cash on hand, our cash flows from operations, general market conditions and other factors. The 2014 Program may be discontinued by our Board of Directors at any time.

Current wording

(2) In November 2014, our Board of Directors authorized a $250 million stock repurchase program (the "2014 Program"). In November 2015, our Board of Directors approved the expansion of the 2014 Program by an additional $150 million. In August 2018, our Board of Directors approved the further expansion of the existing 2014 Program by an additional$150 million. In August 2022, our Board of Directors approved the further expansion of the existing 2014 Program by an additional $500 million. There were repurchases of 355,721 common stock under the 2014 Program during the three months ended June 30, 2026, for an aggregate purchase price of $30 million under the 2014 Program. As of June 30, 2026, 10,285,404 shares of our common stock had been acquired at an aggregate purchase price of approximately$727 million under the 2014 Program. Transaction fees and commissions are not reported in the average price paid per share in the table above. Decisions regarding the amount and the timing of purchases under the 2014 Program will be influenced by our cash on hand, our cash flows from operations, general market conditions and other factors. The 2014 Program may be discontinued by our Board of Directors at any time.