X0306 4 2020-03-05 0 0000855612 ZIX CORP ZIXI 0001229950 WAGNER DAVID 2711 N. HASKELL AVENUE SUITE 2200 DALLAS TX 75204 1 1 0 0 President, CEO Common Stock 2020-03-05 4 A 0 311333 8.03 A 946691 D Grant under the 2018 Omnibus Incentive Plan (the "Plan") consists of 50% restricted stock that will vest pro-rata annually over 3 years and 50% restricted stock that will vest pro-rata up to 1/3 each year the Company achieves specific performance criteria in 2019-2021, subject to acceleration under conditions described in the Plan. /s/ Noah F. Webster, Attorney-in-Fact 2020-03-09