Company: WCN
Filing Date: 2025-04-04
Form Type: DEF 14A
Source: 0001104659-25-032201
Chunk: 25

Company: Waste Connections, Inc.
Filing Date: 2025-04-04
Form: DEF 14A
Chunk 25
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(1) Beneficial ownership is determined in accordance with the rules of the SEC. In general, a person who has voting power and/or investment power with respect to securities is treated as the beneficial owner of those securities. Except as otherwise indicated by footnote, and subject to applicable community property laws, the Company believes that the beneficial owners of the Common Shares, based on information furnished by such owners, have sole investment power and voting power with respect to such Common Shares. (2) Common Shares which will become issuable within 60 days after March 21, 2025, pursuant to outstanding RSUs count as outstanding for computing the percentage beneficially owned by the person holding such RSUs, but are not deemed to be outstanding for the purpose of computing the percentage ownership of any other person. (3) Includes 235,959 Common Shares held by Mittelstaedt Enterprises, L.P., of which Mr. Mittelstaedt is a limited partner. Excludes 5,286 Common Shares held by the Mittelstaedt Irrevocable Trust dated 6/18/97 and 55,002 Common Shares held by RDM Positive Impact Foundation as to which Mr. Mittelstaedt disclaims beneficial ownership. (4) Includes 12,983 Common Shares held by Mr. Little’s spouse. (5) Includes 220 Common Shares held by Mr. Shea’s children.

36 2025 Proxy • Waste Connections, Inc.

TABLE OF CONTENTS Proposal 2

| ​ | Non-Binding AdvisoryVote On NamedExecutive OfficerCompensation(“Say-On-Pay”)                           |   |   |     | ​ |
| ​ | How should I vote my shares on Proposal 2?                                                             |   |   |     | ​ |
| ​ | The Board of Directors unanimously recommends that shareholders VOTE “FOR” this “Say-on-Pay” proposal. |   |   |     | ​ |
| ​ | Recommendation                                                                                         | ​ | ​ |     | ​ |

WHAT AM I BEING ASKED TO VOTE ON? As required by Section 14A of the Exchange Act, we are requesting our shareholders to approve, on a non-binding, advisory basis, the compensation of our named executive officers, as disclosed in the Compensation Discussion and Analysis, the compensation tables, and the narrative discussion set forth on pages 38to 73of this Proxy Statement. This non-binding advisory vote, commonly referred to as a “say-on-pay” vote,