GAAP to Non-GAAP Reconciliations $ in thousands Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 2018 2018 2018 2018 2019 2019 2019 2019 2020 2020 2020 2020 GAAP income (loss) from operations $2,683 $(3,425) $9,394 $21,118 $(4,402) $(8,288) $11,936 $38,735 $(20,105) $(17,794) $9,633 $24,359 Stock-based compensation 3,789 3,894 4,382 4,582 5,335 8,024 8,836 10,930 13,664 16,923 20,697 23,632 Amortization of intangible assets 477 517 518 517 505 1,152 1,181 1,184 1,168 812 829 1,161 Change in fair value of contingent 293 162 - 169 - (75) - 175 - - - - consideration Intangible asset impairment - - - - - - - - 2,025 - - - Non-GAAP income (loss) from $7,242 $1,148 $14,294 $26,386 $1,438 $813 $21,953 $51,024 $(3,248) $(59) $31,159 $49,152 operations As margin % Total revenue $50,329 $51,502 $62,589 $89,150 $76,020 $82,043 $103,397 $156,450 $108,831 $96,233 $129,717 $160,527 GAAP operating margin 5% (7%) 15% 24% (6%) (10%) 12% 25% (18%) (18%) 7% 15% Non-GAAP operating margin 14% 2% 23% 30% 2% 1% 21% 33% (3%) (0%) 24% 31% Confidential │ ©2021 Alteryx, Inc. 35