Company: WCN
Filing Date: 2025-05-30
Form Type: 424B5
Source: 0001104659-25-054854
Chunk: 22

Company: Waste Connections, Inc.
Filing Date: 2025-05-30
Form: 424B5
Chunk 22
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500 million of the borrowings outstanding under the Revolving Credit Facility.

As of March 31, 2025, we had $2,479.7 million in borrowings outstanding under the Revolving Credit Facility, exclusive of outstanding standby letters of credit of $56.2 million, with such borrowings bearing interest ranging from 4.02% to 7.50%. We used the borrowings under the Revolving Credit Facility for general corporate purposes, including acquisitions. Amounts repaid under the Revolving Credit Facility may be re-borrowed from time to time, subject to the terms of the Revolving Credit Facility, and we intend to do so from time to time for liquidity and general corporate purposes, including to fund future acquisitions. In addition, the Company also had $56.2 million of letters of credit issued and outstanding at March 31, 2025 under the Revolving Credit Facility and $111.9 million of letters of credit issued and outstanding at March 31, 2025 under a standalone bilateral letter of credit facility.

Affiliates of certain of the underwriters are lenders under our Revolving Credit Facility and, as a result, will indirectly receive a portion of the proceeds of this offering. See “Underwriting (Conflicts of Interest)” in this prospectus supplement.

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TABLE OF CONTENTS

CAPITALIZATION The following table sets forth our cash and cash equivalents and capitalization as of March 31, 2025 on: • an actual basis; and • an as adjusted basis to reflect the sale of Notes in this offering and the application of the net proceeds therefrom as described in “Use of Proceeds” in this prospectus supplement. You should read our financial statements and notes thereto that are incorporated by reference into this prospectus supplement and the accompanying base prospectus for additional information about our capital structure.

| ​                                                                | ​ | ​ | As of March 31, 2025          |   |            |   |   |   |             |   |            |   | ​ |
|:-----------------------------------------------------------------|:--|:--|:------------------------------|:--|-----------:|:--|:--|:--|:------------|:--|-----------:|:--|:--|
| ​                                                                | ​ | ​ | Actual                        |   |            |   | ​ | ​ | As Adjusted |   |            |   | ​ |
| ​                                                                | ​ | ​ | -in