Westlake (WLK) tenders 3.600% 2026 notes, plans new notes sale

Westlake Corporation announced a cash tender offer for any and all of its outstanding 3.600% Senior Notes due 2026, subject to the terms and conditions in an Offer to Purchase dated November 4, 2025.

Rhea-AI Filing Summary

Westlake Corporation announced a cash tender offer for any and all of its outstanding 3.600% Senior Notes due 2026, subject to the terms and conditions in an Offer to Purchase dated November 4, 2025.

On the same day, the company also announced its intention to offer senior unsecured notes in an underwritten public offering pursuant to its effective Form S-3 shelf registration. Both announcements were made via press releases furnished as exhibits.

Insights

Corporate Finance Analyst

Debt refinancing in motion: tender 2026 notes and issue new senior notes to reshape maturities.

Westlake launched a cash tender for any and all of its 3.600% Senior Notes due 2026 and announced an underwritten offering of new senior unsecured notes. This is classic liability management: retire near‑term debt and replace it with longer‑dated paper via the shelf registration on Form S‑3.

Outcomes hinge on pricing, participation, and terms in the Offer to Purchase. Interest expense could rise or fall depending on the new coupon; liquidity depends on the offering’s size and settlement alignment with tender outflows. Both actions are subject to market conditions and the tender’s stated terms and conditions.

Key items to watch: tender uptake rate for the 2026 notes, final coupon and tenor of the new notes, and settlement timing relative to November 2025 announcement. If execution is smooth, the maturity profile extends past 2026; investors should monitor the final results press release tied to the tender expiration and the pricing of the new issue when announced.

8-K Event Classification

Item 7.01 — Regulation FD Disclosure

1 item

Item 7.01 Regulation FD Disclosure Disclosure

Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Westlake (WLK) announce on November 4, 2025?

The company commenced a cash tender offer for any and all of its 3.600% Senior Notes due 2026 and announced an intended offering of new senior unsecured notes.

Which securities are targeted by the Westlake tender offer (WLK)?

Any and all of Westlake’s outstanding 3.600% Senior Notes due 2026.

How will Westlake (WLK) offer the new notes?

Through an underwritten public offering pursuant to its Form S-3 shelf registration (File No. 333-291208).

Where can investors find details on the tender offer and notes offering?

In the press releases furnished as Exhibits 99.1 and 99.2 and in the Offer to Purchase dated November 4, 2025.

Does this 8-K constitute an offer to sell or buy securities?

No. The filing states it does not constitute an offer or solicitation in any jurisdiction where unlawful.

Are the press releases considered filed under the Exchange Act?

No. The information in Item 7.01, including Exhibits 99.1 and 99.2, is furnished, not filed.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Understanding 8-K Material Events →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 11/04/2025 - 09:51 AM EST Learn about SEC filing dates

WESTLAKE CORP false 0001262823 0001262823 2025-11-04 2025-11-04 0001262823 us-gaap:CommonStockMember 2025-11-04 2025-11-04 0001262823 us-gaap:SeniorNotesMember 2025-11-04 2025-11-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (date of earliest event reported): November 4, 2025

Westlake Corporation

(Exact name of registrant as specified in its charter)

Delaware		001-32260		76-0346924
(State or other jurisdiction of incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)
2801 Post Oak Boulevard, Suite 600 Houston, Texas				77056
(Address of principal executive offices)				(Zip Code)

Registrant’s telephone number, including area code: (713) 960-9111

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock		WLK		The New York Stock Exchange
1.625% Senior Notes due 2029		WLK 29		The New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01 Regulation FD Disclosure

Tender Offer

On November 4, 2025, Westlake Corporation (the “Company”) issued a press release announcing the commencement of a cash tender offer (the “Tender Offer”) for any and all of its outstanding 3.600% Senior Notes due 2026. The Tender Offer is subject to the terms and conditions set forth in the Offer to Purchase, dated November 4, 2025. A copy of the press release is attached as Exhibit 99.1 to this report and is incorporated by reference herein.

Senior Notes Offering

On November 4, 2025 the Company issued a press release announcing its intention to offer senior unsecured notes (the “Notes”) in an underwritten public offering pursuant to the Company’s registration statement on Form S-3 (File No. 333-291208) (the “Notes Offering”). A copy of the press release is attached as Exhibit 99.2 to this report and is incorporated herein by reference.

The information furnished pursuant to this Item 7.01, including Exhibits 99.1 and 99.2, shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and will not be incorporated by reference into any registration statement filed by the Company under the Securities Act unless specifically identified as being incorporated therein.

This Current Report on Form 8-K does not constitute an offer to purchase securities or a solicitation of an offer to sell any securities or an offer to sell or the solicitation of an offer to purchase any securities nor does it constitute an offer or solicitation in any jurisdiction in which such offer or solicitation is unlawful.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number		Description
99.1		Press Release issued by Westlake Corporation on November 4, 2025 announcing commencement of the Tender Offer.
99.2		Press Release issued by Westlake Corporation on November 4, 2025 announcing commencement of the Notes Offering.
104		Cover Page Interactive Data File, formatted in Inline XBRL.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		WESTLAKE CORPORATION
Date: November 4, 2025		By:		/s/ L. Benjamin Ederington
				L. Benjamin Ederington
				Executive Vice President, Legal and External Affairs