Company: WCN
Filing Date: 2025-05-30
Form Type: 424B5
Source: 0001104659-25-054854
Chunk: 0

Company: Waste Connections, Inc.
Filing Date: 2025-05-30
Form: 424B5
Chunk 0
---
TABLE OF CONTENTS

Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333- 282813 PROSPECTUS SUPPLEMENT
(To prospectus dated October 24, 2024) $500,000,000 Waste Connections, Inc. 5.250% Senior Notes due 2035 We are offering $500,000,000 aggregate principal amount of 5.250% Senior Notes due 2035 (the “Notes”). We will pay interest on the Notes on March 1 and September 1 of each year, beginning March 1, 2026. The Notes will mature on September 1, 2035. We may redeem some or all of the Notes at any time at the applicable redemption price described in this prospectus supplement. We also have the right to redeem all of the Notes if, at any time, certain changes in law require us to make additional payments with respect to taxes withheld from payments on the Notes. See “Description of Notes — Optional Redemption.” If a change of control triggering event as described in this prospectus supplement occurs, we will be required, subject to certain exceptions, to make an offer to each holder of Notes to purchase all or any part of that holder’s Notes for cash at a purchase price equal to 101% of the principal amount of the Notes to be purchased, plus accrued and unpaid interest, if any, on those Notes to, but excluding, the purchase date. See “Description of Notes — Change of Control Triggering Event.” The Notes will be our senior, unsecured obligations and will rank equally in right of payment with all of our existing and future senior, unsecured indebtedness and will rank senior in right of payment to any future indebtedness that we incur that is expressly subordinated to the Notes. The Notes will be effectively subordinated to any future secured indebtedness that we incur to the extent of the value of the collateral securing such indebtedness. In addition, the Notes will be structurally subordinated to all existing and future indebtedness and other liabilities, including trade payables, of our subsidiaries. Investing in the Notes involves risks. You should read carefully the entire accompanying base prospectus and this prospectus supplement and the documents incorporated by reference herein and therein, including the section entitled “Risk Factors” beginning on page S-9of this prospectus supplement.

| ​                                   
 Notes                               | ​ 
 ​ | ​ 
 ​ | Per Note 
 ​        | ​ | ​       | ​ | ​ 
 ​ |