X0508 4 2026-02-13 false 0001318220 Waste Connections, Inc. WCN 0001766686 Bertone Andrea E. 3 WATERWAY SQUARE PLACE SUITE 110 THE WOODLANDS TX 77380 true false false false false Common Shares 2026-02-13 4 M false 344.00 0.00 A 344.00 D Common Shares 2026-02-13 4 F false 185.00 160.2683 D 159.00 D Common Shares 2026-02-14 4 M false 279.00 0.00 A 438.00 D Common Shares 2026-02-14 4 F false 150.00 160.2683 D 288.00 D Restricted Share Units 0.00 2026-02-13 4 A false 435.00 0.00 A Common Shares 435.00 435.00 D Restricted Share Units 0.00 2026-02-13 4 A false 687.00 0.00 A Common Shares 687.00 687.00 D Restricted Share Units 0.00 2026-02-13 4 M false 344.00 0.00 D Common Shares 344.00 343.00 D Restricted Share Units 0.00 2026-02-14 4 M false 279.00 0.00 D Common Shares 279.00 0.00 D Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares. For purposes of this disclosure, Canadian dollar amounts have been converted to U.S. dollars. CAN $218.26 = US $160.2683 One Deferred Share Unit is the economic equivalent of one common share of the Issuer. Deferred Share Units will be settled in cash, common shares, or a combination thereof, at the sole discretion of the Issuer, and distributed to the reporting person upon such person's retirement and generally do not expire. Each restricted share unit represents a contingent right to receive one share of the Issuer's common shares. Subject to the reporting person's continued service with the Issuer, the award shall vest 50% immediately on the award date and 50% on the first anniversary of the award date. Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The restricted share units were awarded on February 13, 2026 and have a vesting schedule of 50% immediately and 50% on the first anniversary of the award date. Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The restricted share units were awarded on February 14, 2025 and have a vesting schedule of 50% immediately and 50% on the first anniversary of the award date. ANDREA BERTONE 2026-02-18