Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-34370 WASTE CONNECTIONS, INC. (Exact name of registrant as specified in its charter) Ontario, Canada (State or o ...

Waste Connections, Inc. (NYSE:WCN) Q4 2021 Earnings Conference Call February 17, 2022 8:30 AM ET Company Participants Worthing Jackman - President and Chief Executive Officer Mary Anne Whitney - Chief Financial Officer Conference Call Participants Walter Spracklin - RBC Capital Markets Hamzah Mazari - Jefferies Tyler Brown - Raymond James Jerry Revich - Goldman Sachs Kevin Chiang - CIBC Sean Eastman - KeyBanc Capital Markets Noah Kaye - Oppenheimer Michael Hoffman - Stifel Chris Murray - ATB Capital Markets ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ___________ to ___________ Commission File No. 1-34370 WASTE CONNECTIONS, INC. (Exact name of registrant as specified in its charter) Ontario, Ca ...

1 Investor Presentation December 2021 SAFE HARBOR STATEMENT This document contains forward-looking statements within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995 ("PSLRA"), including "forward-looking information" within the meaning of applicable Canadian securities laws. These forward-looking statements are neither historical facts nor assurances of future performance and reflect Waste Connections' current beliefs and expectations regarding future ev ...

Waste Connections, Inc. (NYSE:WCN) Q3 2021 Earnings Conference Call October 28, 2021 8:30 AM ET Company Participants Worthing Jackman - President & CEO Mary Anne Whitney - EVP & CFO Conference Call Participants Adam Bubes - Goldman Sachs Sean Eastman - KeyBanc Hamzah Mazari - Jefferies Walter Spracklin - RBC Capital Markets Jeff Goldstein - Morgan Stanley Tyler Brown - Raymond James Kevin Chiang - CIBC Noah Kaye - Oppenheimer Michael Hoffman - Stifel Chris Murray - ATB Capital Markets Operator Greetings and ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-34370 WASTE CONNECTIONS, INC. (Exact name of registrant as specified in its charter) Ontario, Canada (I.R.S. ...

Waste Connections, Inc. (NYSE:WCN) Q2 2021 Results Earnings Conference Call August 5, 2021 8:30 AM ET Company Participants Worthing Jackman - President, Chief Executive Officer Mary Anne Whitney - Executive Vice President, Chief Financial Officer Conference Call Participants Walter Spracklin - RBC Capital Markets Hamzah Mazari - Jefferies Jeff Goldstein - Morgan Stanley Jerry Revich - Goldman Sachs Michael Hoffman - Stifel Sean Eastman - KeyBanc Tyler Brown - Raymond James Noah Kaye - Oppenheimer Michael Fe ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-34370 WASTE CONNECTIONS, INC. (Exact name of registrant as specified in its charter) Ontario, Canada (State or ot ...

Waste Connections, Inc. (NYSE:WCN) Q1 2021 Earnings Conference Call April 29, 2021 8:30 AM ET Company Participants Worthing Jackman – President and Chief Executive Officer Mary Anne Whitney – Chief Financial Officer Conference Call Participants Walter Spracklin – RBC Capital Markets Kevin Chiang – CIBC Jeff Goldstein – Morgan Stanley Chris Murray – ATB Capital Markets Tyler Brown – Raymond James Adam Bubes – Goldman Sachs Michael Hoffman – Stifel Ryan Gunning – Jefferies Stephanie Yee – JPMorgan Noah Kaye – ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-34370 WASTE CONNECTIONS, INC. (Exact name of registrant as specified in its charter) Ontario, Canada (State or o ...