X0508 5 2023-12-31 false 0 1 0001318220 Waste Connections, Inc. WCN 0001064313 HARLAN MICHAEL W 3 WATERWAY SQUARE DRIVE SUITE 110 THE WOODLANDS TX 77380 true false false false false Common Shares 2019-08-26 4 P false L 26.22 90.3813 A 9161.936 D Common Shares 2019-11-26 4 P false L 30.044 91.3393 A 9161.936 D Common Shares 2020-03-13 4 P false L 32.711 84.0368 A 9161.936 D Common Shares 2020-05-19 4 P false L 11.803 92.1138 A 9161.936 D Common Shares 2020-08-18 4 P false L 10.864 100.2466 A 9161.936 D Common Shares 2020-11-25 5 P false L 11.671 103.5652 A 9161.936 D Common Shares 2021-03-17 5 P false L 11.841 102.2498 A 9161.936 D Common Shares 2021-05-26 5 P false L 10.066 120.4857 A 9161.936 D Common Shares 2021-09-01 5 P false L 9.353 129.8577 A 9161.936 D Common Shares 2021-11-23 5 P false L 9.944 137.2194 A 9161.936 D Common Shares 2022-03-16 5 P false L 10.087 135.4664 A 9161.936 D Common Shares 2022-06-01 5 P false L 10.722 127.6273 A 9161.936 D Common Shares 2022-09-02 5 P false L 9.751 140.5517 A 9161.936 D Common Shares 2022-12-01 5 P false L 10.596 143.6013 A 9161.936 D Common Shares 2023-03-15 5 L false 11.295 134.9181 A 9161.936 D Common Shares 2023-05-24 5 L false 11.099 137.5213 A 9161.936 D Common Shares 2023-08-30 5 L false 11.031 138.5549 A 9161.936 D Common Shares 2023-11-28 5 L false 12.838 133.298 A 9161.936 D This purchase resulted in a matching transaction for Section 16(b) reporting purposes. As a result, the reporting person has reimbursed Waste Connections, Inc. $698.40 which is the total amount of short swing profit from the matched transactions pursuant to Section 16(b). The transactions in 2019-2022 were due to a broker-assisted dividend reinvestment program inadvertently omitted from prior reports. Amount of securities beneficially owned at December 31, 2019, 2020, 2021 and 2022: 8,966.264, 9,033.313, 9,074.517, 9,115.673, respectively. Michael Harlan 2024-02-14