Company: WCN
Filing Date: 2025-05-30
Form Type: 424B5
Source: 0001104659-25-054854
Chunk: 54

Company: Waste Connections, Inc.
Filing Date: 2025-05-30
Form: 424B5
Chunk 54
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 of the Notes if any of them are purchased. Commissions and Discounts The underwriters initially propose to offer the Notes to the public at the public offering price that appears on the cover page of this prospectus supplement. The underwriters may offer the Notes to selected dealers at the public offering price minus a concession of up to 0.400% of the principal amount of the Notes. In addition, the underwriters may allow, and those selected dealers may re-allow, a concession to certain other dealers of up to 0.250% of the principal amount of the Notes. After the initial offering, the underwriters may change the public offering price and any other selling terms. The underwriters may offer and sell Notes through certain of their affiliates. The following table shows the underwriting discount to be paid to the underwriters in connection with this offering (expressed as a percentage of the principal amount of the Notes).

| ​        | ​ | ​ | Paid by us |   |        |   | ​ |
| Per note | ​ | ​ | ​          | ​ | 0.650% | ​ | ​ |

In the underwriting agreement, we have agreed that: • We will pay our expenses related to the offering, which we estimate will total approximately $1.7 million. • We will indemnify the underwriters against certain liabilities, including liabilities under the Securities Act of 1933, as amended, or contribute to payments that the underwriters may be required to make in respect of those liabilities. Selling Restriction in Canada The Notes have not been qualified for sale under the securities laws of any province or territory of Canada and are not being and may not be offered or sold in Canada. None of the underwriters participating

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in the distribution of the Notes will offer to sell, directly or indirectly, any Notes acquired by it in connection with the distribution, in Canada or to residents of Canada.

Notice to Prospective Investors in the European Economic Area

The Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the European Economic Area (“EEA”). For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU (as amended, “MiFID II”); (ii) a customer within the meaning