Confidential 2021 Alteryx, Inc. 35 $ in thousands GAAP to Non-GAAP Reconciliations Q1 2018 Q2 2018 Q3 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 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 consideration 293 162 - 169 - (75) - 175 - - - - Intangible asset impairment - - - - - - - - 2,025 - - - Non-GAAP income (loss) from operations $7,242 $1,148 $14,294 $26,386 $1,438 $813 $21,953 $51,024 $(3,248) $(59) $31,159 $49,152 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%