Confidential 2021 Alteryx, Inc. 41 FYE December 31 | $ in thousands GAAP to Non-GAAP Reconciliations 2017 2018 1 2019 1 2020 1 Three months ended Dec 31, 2020 1 Three months ended Dec 31, 2019 1 GAAP general & administrative expense $32,241 $48,267 $79,943 $101,439 $30,183 $23,291 Stock-based compensation (4,519) (5,998) (11,878) (25,515) (8,826) (3,667) Follow-on-public offering costs (676) - - - - - Change in fair value of contingent consideration (190) (624) (100) - - (175) Non-GAAP general & administrative expense $26,856 $41,645 $67,965 $75,924 $21,537 $19,449 As margin % Total revenue $131,607 $253,570 $417,910 $495,308 $160,527 $156,450 GAAP general & administrative 24% 19% 19% 20% 19% 15% Non-GAAP general & administrative 20% 16% 16% 15% 13% 12% ASC 605 ASC 606 1 Alteryx adopted the new revenue recognition accounting standard Accounting Standards Codification (ASC) 606 effective January 1, 2018 on a modified retrospective basis. Financial results for the 2018 and 2019 reporting periods are presented in accordance with the new revenue recognition standard. Historical financial results for the reporting periods prior to 2018 are presented in conformity with amounts previously disclosed under the prior revenue recognition standard ASC 605.