共和废品处理美股招股说明书(2026-06-24版)

PROSPECTUS SUPPLEMENT (to Prospectus Dated April25, 2025) 4.750% Notes due 20315.000% Notes due 2036 We are offering $700,000,000 aggregate principal amount of 4.750% notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of 5.000% notesdue 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”). Interest on the Notes is payable semi-annually in arrears on January15 and July15 of eachyear, beginning on January15, 2027. The 2031 Notes will mature on July15, 2031. The 2036 Notes will mature on July15, 2036. We may redeem some or all of theNotes, at any time and from time to time, at our option at a redemption price calculated as described in this prospectus supplement. See “Description of Notes —Optional Redemption” in this prospectus supplement. If a change of control triggering event occurs, we will be required to offer to purchase the relevant series of Notesfrom the holders at a purchase price equal to 101% of the principal amount thereof plus accrued and unpaid interest to, but excluding, the purchase date. See “Descriptionof Notes — Change of Control Triggering Event” in this prospectus supplement. The Notes will be our unsecured and unsubordinated obligations and will rank equally with all of our other unsecured and unsubordinated indebtedness from time to timeoutstanding. The Notes will be issued only in registered form in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof. The Notes of each series have no established trading market. We do not intend to list the Notes on any securities exchange. Investing in the Notes involves risks. You should read carefully the entire accompanying prospectus and this prospectussupplement and the documents incorporated by reference herein and therein, including the section entitled “RiskFactors”beginning on pageS-4 of this prospectus supplement. Neither the United States Securities and Exchange Commission nor any other regulatory body has approved or disapproved of these Notes or passed upon theaccuracy or adequacy of this prospectus supplement or the accompanying prospectus. Any representation to the contrary is a criminal offense. (1)Plus accrued interest from June26, 2026, if settlement occurs after that date. We expect the Notes to be delivered in book-entry form only through the facilities of The Depository Trust Company (“DTC”) for the accounts of its participants,including Clearstream Banking S.A. and Euroclear Bank SA/NV, against payment in New York, New York on or about June 26, 2026. SiebertWilliamsShankCastleOakSecurities,L.P. Table of Contents We have not, and the underwriters have not, authorized anyone to provide you with different or additional information from that contained orincorporated by reference in this prospectus supplement or the accompanying prospectus. We take no responsibility for, and can provide no assurance asto the reliability of, any information that others may give. This prospectus supplement and the accompanying prospectus do not constitute an offer to sellor the solicitation of an offer to buy any securities other than the securities described in this prospectus supplement or an offer to sell or the solicitationof an offer to buy those securities in any circumstances in which such offer or solicitation is unlawful. Neither the delivery of this prospectus supplement, the accompanying prospectus or any free writing prospectus, nor any sale made hereunder andthereunder shall, under any circumstances, create any implication that there has been no change in our affairs since the date hereof or thereof or that theinformation contained or incorporated by reference herein or therein is correct as of any time subsequent to the date of such information. Unless the context indicates otherwise, all references in this prospectus supplement and the accompanying prospectus to “we,” “us,” “our” and“Republic” refer to Republic Services, Inc., our consolidated subsidiaries, or to all of them taken as a whole. TABLE OF CONTENTS Prospectus Supplement FORWARD-LOOKING STATEMENTSDOCUMENTS INCORPORATED BY REFERENCESUMMARYRISK FACTORSUSE OF PROCEEDSDESCRIPTION OF NOTESMATERIAL UNITED STATES FEDERAL TAX CONSIDERATIONSUNDERWRITING (CONFLICTS OF INTEREST)LEGAL MATTERSEXPERTS Prospectus ABOUT THIS PROSPECTUSRISK FACTORSDISCLOSURE REGARDING FORWARD-LOOKING STATEMENTSDOCUMENTS INCORPORATED BY REFERENCE INTO THIS PROSPECTUSTHE COMPANYUSE OF PROCEEDSDESCRIPTION OF SECURITIESDESCRIPTION OF DEBT SECURITIES DESCRIPTION OF CAPITAL STOCK DESCRIPTION OF SUBSCRIPTION RIGHTS PLAN OF DISTRIBUTION Table of Contents FORWARD-LOOKING STATEMENTS This prospectus supplement and the accompanying prospectus and the documents incorporated by reference herein or therein contain certain forward-looking information about us that is intended to be covered by the safe harbor for “forward-looking statements” provided by the Private SecuritiesLitigation Reform Act of 1995. Forward-looking stateme