X0206 3 2016-12-20 0 0001170534 MITEL NETWORKS CORP MITL 0001692576 McCarthy Michael William 350 LEGGET DRIVE OTTAWA A6 K2K 2W7 ONTARIO, CANADA 0 1 0 0 See Remarks Common Shares 2653 D Options (Common Shares) 9.70 2022-03-05 Common Shares 8250 D Options (Common Shares) 10.11 2021-04-03 Common Shares 7500 D Options (Common Shares) 5.91 2020-09-27 Common Shares 20000 D Restricted Stock Units Common Shares 6500 D Restricted Stock Units Common Shares 5813 D Restricted Stock Units Common Shares 1750 D 8,250 stock options to purchase common shares ("Common Shares") of Mitel Networks Corporation (the "Company") were granted to Mr. McCarthy on March 5, 2015. 515 options vested on June 5, 2015 and are scheduled to vest in approximately equal installments every three months thereafter until March 5, 2019. 7,500 stock options to purchase Common Shares of the Company were granted to Mr. McCarthy on April 3, 2014. 468 options vested on July 3, 2014 and are scheduled to vest in approximately equal installments every three months thereafter until April 3, 2018. 20,000 stock options to purchase Common Shares of the Company were granted to Mr. McCarthy on September 27, 2013. 1,250 options vested on December 27, 2013 and are scheduled to vest in equal installments every three months thereafter until September 27, 2017. Represents 6,500 Common Shares underlying 6,500 Restricted Stock Units ("RSUs") granted to Mr. McCarthy on March 4, 2016. These RSUs will vest as follows: (i) 1,625 of the RSUs will vest on March 4, 2017; (ii) 1,625 of the RSUs will vest on March 4, 2018; (iii) 1,625 of the RSUs will vest on March 4, 2019; and (iv) 1,625 of the RSUs will vest on March 4, 2020. Represents 5,813 Common Shares underlying 5,813 RSUs granted to Mr. McCarthy on March 5, 2015. These RSUs will vest as follows: (i) 1,937 of the RSUs will vest on March 5, 2017; (ii) 1,937 of the RSUs will vest on March 5, 2018; and (iii) 1,939 of the RSUs will vest on March 5, 2019. Represents 1,750 Common Shares underlying 1,750 RSUs granted to Mr. McCarthy on April 3, 2014. These RSUs will vest as follows: (i) 875 of the RSUs will vest on March 1, 2017; and (ii) 875 of the RSUs will vest on December 15, 2017. Mr. McCarthy's title is Vice President, Investor Relations. /s/ Michael William McCarthy 2016-12-20