Confidential 2021 Alteryx, Inc. 36 $ 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 gross profit $45,325 $46,233 $56,779 $82,433 $68,020 $72,748 $93,752 $144,239 $95,784 $86,598 $119,303 $149,784 Stock-based compensation 139 206 226 226 307 410 431 486 436 597 714 803 Amortization of intangible assets 446 451 456 456 446 1,096 1,128 1,131 1,118 762 773 1,105 Impairment of intangible assets - - - - - - - - 2,025 - - - Non-GAAP gross profit $45,910 $46,890 $57,461 $83,115 $68,773 $74,254 $95,311 $145,856 $99,363 $87,957 $120,790 $151,692 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 gross margin 90% 90% 91% 92% 89% 89% 91% 92% 88% 90% 92% 93% Non-GAAP gross margin 91% 91% 92% 93% 90% 91% 92% 93% 91% 91% 93% 94%