X0306 4 2017-03-09 0001170534 MITEL NETWORKS CORP MITL 0001214422 MCBEE RICHARD D 350 LEGGET DRIVE OTTAWA, A6 K2K 2W7 1 1 See Remarks Common Shares 2017-03-09 4 M 0 57375 6.50 A 252360 D Common Shares 2017-03-09 4 M 0 58312 6.50 A 310672 D Common Shares 2017-03-10 4 S 0 43025 6.9517 D 267647 D Restricted Stock Units 0 2017-03-09 4 M 0 57375 0 D Common Shares 57375 172125 D Restricted Stock Units 0 2017-03-09 4 M 0 58312 0 D Common Shares 58312 116626 D Represents 229,500 Common Shares underlying 229,500 Restricted Stock Units ("RSUs") granted to Mr. McBee on March 4, 2016. These RSUs will vest as follows: (i) 57,375 of the RSUs will vest on March 4, 2017; (ii) 57,375 of the RSUs will vest on March 4, 2018; (iii) 57,375 of the RSUs will vest on March 4, 2019; and (iv) 57,375 of the RSUs will vest on March 4, 2020. Represents 174,938 Common Shares underlying 174,938 RSUs granted to Mr. McBee on March 5, 2015. These RSUs will vest as follows: (i) 58,312 of the RSUs will vest on March 5, 2017; (ii) 58,312 of the RSUs will vest on March 5, 2018; and (iii) 58,314 of the RSUs will vest on March 5, 2019. /s/ Richard D. McBee 2017-03-13