X0206 3 2017-04-04 0 0001170534 MITEL NETWORKS CORP MITL 0001203749 ABBOTT TODD 350 LEGGET DRIVE OTTAWA, ON, A6 ONTARIO, CANADA 1 EVP Global Sales Restricted Stock Units Common Shares 40000 D Represents 40,000 Common Shares underlying 40,000 RSUs granted on April 7, 2017. These RSUs vest in four equal installments annually starting April 7, 2018. /s/ Todd Abbott 2017-04-11