X0306 4 2018-08-29 false 0001318220 Waste Connections, Inc. WCN 0001064299 MITTELSTAEDT RONALD J 3 WATERWAY SQUARE PLACE SUITE 110 THE WOODLANDS TX 77380 true true false false Chief Executive Officer Restricted Share Units 0.00 2018-08-29 4 J false 222.00 0.00 D Common Shares 222.00 0.00 D Restricted Share Units 0.00 2018-08-29 4 J false 66450.00 0.00 D Common Shares 66450.00 0.00 D Restricted Share Units 0.00 2018-08-29 4 J false 18109.00 0.00 D Common Shares 18109.00 18108.00 D The deferred restricted share unit award was granted on 11/12/2010 and vested 25% per year over the four-year period following the date of grant. Reflects the number of restricted share units ("RSUs") no longer deemed to be invested in Issuer's nonqualified deferred compensation plan ("Plan") based on an investment election by Reporting Person on August 29, 2018 to credit value of such RSUs into a measurement fund under the Plan. The value of such RSUs is based on the market value of Issuer's common shares on the election date. Such elections are available during Issuer's open trading windows to participants under the Plan who have attained age 55; and for RSU deferrals such participants have made that (i) are scheduled to be distributed pursuant to a multi-year annual installment method election following participant's separation from service and (ii) have been vested for at least three years prior to the election date, as provided for in Amendment No. 2 to the Plan, dated October 25, 2017. The investment election made by Reporting Person does not alter any distribution dates previously selected under the Plan. The deferred restricted share unit award was granted on 2/11/2011 and vested 25% per year over the four-year period following the date of grant. The deferred restricted share unit award was granted on 2/25/2013 and vested 25% per year over the four-year period following the date of grant. Ronald Mittelstaedt 2018-08-31