X0306 4 2017-03-01 0001170534 MITEL NETWORKS CORP MITL 0001504970 Ramakrishna Sudhakar 350 LEGGET DRIVE OTTAWA, K2K 2W7 A6 1 Common Shares 2017-03-01 4 S 0 513 6.67 D 16653 D This sale was made to cover taxes following the vesting of 10,000 RSUs that vested February 28, 2017. /s/ Sudhakar Ramakrishna 2017-03-03