X0306 4 2019-03-13 1 0001689923 Alteryx, Inc. AYX 0001305473 Insight Holdings Group, LLC C/O INSIGHT VENTURE PARTNERS, 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK NY 10036 0 0 1 0 0001574478 Insight Venture Partners VIII, L.P. C/O INSIGHT VENTURE PARTNERS, 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK NY 10036 0 0 1 0 0001574465 Insight Venture Partners (Cayman) VIII, L.P. C/O INSIGHT VENTURE PARTNERS, 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK NY 10036 0 0 1 0 0001578044 Insight Venture Partners VIII (Co-Investors), L.P. C/O INSIGHT VENTURE PARTNERS, 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK NY 10036 0 0 1 0 0001574477 Insight Venture Partners(Delaware) VIII, L.P. C/O INSIGHT VENTURE PARTNERS, 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK NY 10036 0 0 1 0 0001658537 Insight Venture Associates VIII, Ltd. C/O INSIGHT VENTURE PARTNERS, 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK NY 10036 0 0 1 0 0001658471 Insight Venture Associates VIII, L.P. C/O INSIGHT VENTURE PARTNERS, 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK NY 10036 0 0 1 0 0001768895 IVP (Venice), L.P. C/O INSIGHT VENTURE PARTNERS, 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK NY 10036 0 0 1 0 Class A Common Stock 2019-03-13 4 C 0 775661 A 985090 I See Footnotes Class A Common Stock 2019-03-13 4 C 0 200640 A 254813 I See Footnotes Class A Common Stock 2019-03-13 4 C 0 246016 A 312440 I See Footnotes Class A Common Stock 2019-03-13 4 C 0 27683 A 35157 I See Footnotes Class A Common Stock 2019-03-13 4 J 0 775661 D 209429 I See Footnotes Class A Common Stock 2019-03-13 4 J 0 200640 D 54173 I See Footnotes Class A Common Stock 2019-03-13 4 J 0 246016 D 66424 I See Footnotes Class A Common Stock 2019-03-13 4 J 0 27683 D 7474 I See Footnotes Class A Common Stock 2019-03-13 4 J 0 31083 A 99107 I See Footnotes Class B Common Stock 2019-03-13 4 C 0 775661 D Class A Common Stock 775661 735495 D Class B Common Stock 2019-03-13 4 C 0 200640 D Class A Common Stock 200640 190251 D Class B Common Stock 2019-03-13 4 C 0 246016 D Class A Common Stock 246016 233276 D Class B Common Stock 2019-03-13 4 C 0 27683 D Class A Common Stock 27683 26249 D See Exhibit 99.1 See Exhibit 99.1 See Exhibit 99.1 See Exhibit 99.1 See Exhibit 99.1 See Exhibit 99.1 See Exhibit 99.1 This Form 4 is one of two Forms 4 filed relating to the same event. The Form 4 has been split into two filings because there are more than 10 reporting persons in total, and the SEC's EDGAR filing system limits a single Form 4 to a maximum of 10 reporting persons. Each Form 4 is filed by Designated Filer, Insight Holdings Group, LLC. Exhibit 99.1 - Explanation of Responses Exhibit 99.2 - Joint Filers' Names and Addresses Exhibit 99.3 - Joint Filers' Signatures. INSIGHT HOLDINGS GROUP, LLC 2019-03-15