X0206 3 2016-12-20 0 0001170534 MITEL NETWORKS CORP MITL 0001692526 Durow Wesley Dean 350 LEGGET DRIVE OTTAWA A6 K2K 2W7 ONTARIO, CANADA 0 1 0 0 Chief Marketing Officer Common Shares 3604 D Options (Common Shares) 7.17 2023-03-04 Common Shares 49500 D Options (Common Shares) 8.94 2022-05-14 Common Shares 40000 D Restricted Stock Units Common Shares 40500 D Restricted Stock Units Common Shares 15000 D 49,500 stock options to purchase common shares ("Common Shares") of Mitel Networks Corporation (the "Company") were granted to Mr. Durow on March 4, 2016. 3,093 options vested on June 4, 2016 and are scheduled to vest in approximately equal installments every three months thereafter until March 4, 2020. 40,000 stock options to purchase Common Shares of the Company were granted to Mr. Durow on May 14, 2015. 2,500 options vested on August 14, 2015 and are scheduled to vest in equal installments every three months thereafter until May 14, 2019. Represents 40,500 Common Shares underlying 40,500 Restricted Stock Units ("RSUs") granted to Mr. Durow on March 4, 2016. These RSUs will vest as follows: (i) 10,125 of the RSUs will vest on March 4, 2017; (ii) 10,125 of the RSUs will vest on March 4, 2018; (iii) 10,125 of the RSUs will vest on March 4, 2019; and (iv) 10,125 of the RSUs will vest on March 4, 2020. Represents 15,000 Common Shares underlying 15,000 RSUs granted to Mr. Durow on May 14, 2015. These RSUs will vest as follows: (i) 5,000 of the RSUs will vest on May 14, 2017; (ii) 5,000 of the RSUs will vest on May 14, 2018; and (iii) 5,000 of the RSUs will vest on May 14, 2019. /s/ Wesley Dean Durow 2016-12-20