MIME 2018 Proxy Statement

Appendix A Reconciliation of Non-GAAP Financial Measures REPORTED RESULTS VARIATION FROM EXECUTIVE COMPENSATION TARGET ACHIEVEMENT FISCAL 2018 Q1 FY 2018 Q2 FY 2018 Q3 FY 2018 Q4 FY 2018 FY18 (in thousands) GAAP Revenue (as reported) . . . . . . . . . . . . . . $ 58,158 $ 63,066 $ 67,272 $ 73,401 $ 261,897 Effects of foreign exchange rate movements on reported GAAP Revenue . . . . . . . . . . . . . . . $ 561 $ 1,203 $ 1,194 $ 3,794 $ 6,753 Revenue for the purposes of executive compensation calculation . . . . . . . . . . . . . . . $ 57,597 $ 61,862 $ 66,078 $ 69,607 $ 255,144 Revenue Performance Target . . . . . . . . . . . . . . $ 57,094 $ 62,001 $ 66,604 $ 70,332 $ 256,032 Q1 FY 2018 Q2 FY 2018 Q3 FY 2018 Q4 FY 2018 FY18 (in thousands) Net loss (as reported) . . . . . . . . . . . . . . . . . . . . $(1,900) $(1,339) $(2,593) $(6,554) $(12,386) Depreciation, amortization and disposals of long-lived assets . . . . . . . . . . . . . . . . . . . . . . 3,609 4,250 4,719 6,562 19,141 Rent expense related to build-to-suit facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — — — (785) (785) Interest (income) expense, net . . . . . . . . . . . . . (208) (245) (245) (14) (712) Provision for income taxes . . . . . . . . . . . . . . . . 457 421 845 982 2,705 Share-based compensation expense . . . . . . . . . 2,646 2,910 3,142 3,036 11,734 Impairments of long-lived assets . . . . . . . . . . . — — — 1,712 1,712 Restructuring . . . . . . . . . . . . . . . . . . . . . . . . . . . — — — 832 832 Foreign exchange expense . . . . . . . . . . . . . . . . 540 655 864 1,452 3,511 Adjusted EBITDA (as reported) . . . . . . . . . . . . $ 5,144 $ 6,652 $ 6,732 $ 7,223 $ 25,752 Adjustment related to software amortization . . (87) (169) (274) (759) (1,289) Effects of foreign exchange rate movements on reported results . . . . . . . . . . . . . . . . . . . . . . . (91) (19) 260 (404) (254) Adjusted EBITDA for purposes of executive compensation calculation . . . . . . . . . . . . . . . $ 4,966 $ 6,464 $ 6,718 $ 6,060 $ 24,209 Adjusted EBITDA Performance Target . . . . . . $ 4,450 $ 5,917 $ 6,251 $ 6,588 $ 23,207 A-1