Williams Companies Inc — Current Report (Form 8-K)

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): January 8, 2026 (January 5, 2026)

The Williams Companies, Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (918) 573-2000

NOT APPLICABLE

(Former name or former address, if changed since last report.)

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:

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

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. ☐

On January 5, 2026, The Williams Companies, Inc. (the “Company”) issued a press release announcing that it had priced the Offering (as defined below). A copy of the press release is furnished and attached as Exhibit 99.1 hereto and is incorporated herein by reference.

In accordance with General Instruction B.2 of Form 8-K, the information furnished under this Item 7.01 on this Current Report on Form 8-K and Exhibit 99.1 attached hereto are deemed to be “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act.

On January 5, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Barclays Capital Inc., BofA Securities, Inc., CIBC World Markets Corp., and Truist Securities, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.650% Senior Notes due 2033 (the “New 2033 Notes”), $1.25 billion aggregate principal amount of its 5.150% Senior Notes due 2036 (the “2036 Notes”) and $1.0 billion aggregate principal amount of its 5.950% Senior Notes due 2056 (the “2056 Notes” and, together with the New 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report. The New 2033 Notes are an additional issuance of the Company’s 5.650% Senior Notes due 2033 issued on March 2, 2023 and will trade interchangeably with the $750 million aggregate principal amount of such notes that were issued on such date.

The Offering has been registered under the Securities Act pursuant to a registration statement on Form S-3 (Registration No. 333-277232) of the Company (the “Registration Statement”) and the prospectus supplement dated January 5, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on January 6, 2026. The Offering is expected to close on January 8, 2026. The legal opinion of Gibson, Dunn & Crutcher LLP related to the Offering pursuant to the Registration Statement is filed as Exhibit 5.1 to this report.

The Notes will be issued pursuant to an Indenture, dated as of December 18, 2012, between the Company and The Bank of New York Mellon Trust Company, N.A. as trustee (the “Trustee”), as supplemented, in the case of the New 2033 Notes, by the Seventh Supplemental Indenture (the “Seventh Supplemental Indenture”), dated as of March 2, 2023, between the Company and the Trustee, and, in the case of the 2036 Notes and the 2056 Notes, by the Thirteenth Supplemental Indenture (the “Thirteenth Supplemental Indenture”), to be dated as of January 8, 2026, between the Company and the Trustee. The New 2033 Notes will be represented by a global security, the form of which is included as an exhibit to the Seventh Supplemental Indenture. The form of Seventh Supplemental Indenture and the form of the New 2033 Notes were filed as Exhibits 4.1 and 4.3, respectively, to the Company’s Current Report on Form 8-K, filed with the SEC on March 2, 2023. The 2036 Notes and the 2056 Notes will each be represented by a global security, the applicable forms of which are included as exhibits to the Thirteenth Supplemental Indenture. The form of Thirteenth Supplemental Indenture and the forms of the 2036 Notes and 2056 Notes are filed as Exhibits to this Current Report on Form 8-K and are incorporated herein by reference.

SIGNATURES

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.