威廉姆斯美股招股说明书(2026-09-03版)

The Holders may offer, sell or distribute a portion of the securities hereby registered publicly or through private transactions at prevailing marketprices or at negotiated prices. We will not receive any of the proceeds from such sales of common stock. Certain Holders have agreed to lock-uprestrictions with the Company, and as of the date of this prospectus, 1,854,793 shares are available for sale hereunder, with the remainder of the sharesof common stock to become available for sale on a rolling basis until March3, 2027. The Holders who have agreed to lock-up restrictions with theCompany received 25,557,199 shares of common stock, in the aggregate, from the Company in connection with the Acquisition (as defined herein);such Holders may, in the aggregate, sell no more than 537,496 shares of common stock each day from the date hereof until March3, 2027. We will bearall costs, expenses and fees in connection with the registration of these securities, including with regard to compliance with state securities or “blue sky”laws. The Holders will bear all commissions and discounts, if any, attributable to its sale of common stock. See the section titled “Plan of Distribution.” Our common stock is listed on the New York Stock Exchange under the ticker symbol “WMB.” Investing in our common stock involves risks. Please read “Risk Factors” beginning on pageS-3 of this prospectussupplement. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities orpassed upon the adequacy or accuracy of this prospectus supplement or the accompanying base prospectus. Any representation to the contraryis a criminal offense. This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of this offering of common stock.The second part is the accompanying base prospectus, which gives more general information, some of which may not apply to this offering of commonstock. Generally, when we refer only to the “prospectus,” we are referring to both parts combined. If the information about the offering of common stockvaries between this prospectus supplement and the accompanying base prospectus, you should rely on the information in this prospectus supplement. Any statement made in this prospectus or in a document incorporated or deemed to be incorporated by reference into this prospectus will bedeemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus or in any othersubsequently filed document that is also incorporated by reference into this prospectus modifies or supersedes that statement. Any statement so modifiedor superseded will not be deemed, except as so modified or superseded, to constitute a part of this prospectus. Please read “Where You Can Find More Information” on page S-10 of this prospectus supplement. Neither we nor the Holders have authorizedanyone to provide you with additional or different information or to make representations other than those contained or incorporated by reference in thisprospectus or in any free writing prospectus prepared by or on behalf of us. Neither we nor the Holders take any responsibility for, and can provide noassurance as to the reliability of, any other information that others may give you. The Holders are offering to sell common stock, and seeking offers tobuy common stock, only in jurisdictions where offers and sales are permitted. You should not assume that the information contained in this prospectussupplement, the accompanying base prospectus or any free writing prospectus is accurate as of any date other than the dates shown in these documentsor that any information we have incorporated by reference herein is accurate as of any date other than the date of the document incorporated byreference. Our business, financial condition, results of operations and prospects may have changed since such dates. Unless the context otherwise requires, references in this prospectus to “Williams,” “we,” “our,” “us” and like terms refer to The WilliamsCompanies, Inc. and its subsidiaries. TABLE OF CONTENTS Prospectus Supplement Forward-Looking StatementsSummaryThe OfferingRisk FactorsUse of ProceedsSelling HoldersPlan of DistributionLegal MattersExpertsWhere You Can Find More InformationIncorporation by Reference About This ProspectusAbout The Williams Companies, Inc.Risk FactorsWhere You Can Find More InformationIncorporation by ReferenceSpecial Note Regarding Forward-Looking StatementsUse of ProceedsDescription of Debt Securities FORWARD-LOOKING STATEMENTS Certain matters discussed in this prospectus supplement and the documents incorporated herein by reference, excluding historical facts, are“forward-looking statements” within the meaning of Section27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section21E ofthe Securities Exchange Act of 1934, as amended (the “Exchange Act”)