X0306 4 2018-08-16 0 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 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 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 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 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 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 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 Class A Common Stock 2018-08-16 4 S 0 10702 54.03 D 624677 I See footnotes Class A Common Stock 2018-08-16 4 S 0 2768 54.03 D 161587 I See footnotes Class A Common Stock 2018-08-16 4 S 0 3394 54.03 D 198129 I See footnotes Class A Common Stock 2018-08-16 4 S 0 382 54.03 D 22294 I See footnotes Class A Common Stock 2018-08-16 4 S 0 12107 54.60 D 612570 I See footnotes Class A Common Stock 2018-08-16 4 S 0 3132 54.60 D 158455 I See footnotes Class A Common Stock 2018-08-16 4 S 0 3840 54.60 D 194289 I See footnotes Class A Common Stock 2018-08-16 4 S 0 432 54.60 D 21682 I See footnotes Class A Common Stock 2018-08-17 4 S 0 2276 54.01 D 610294 I See footnotes Class A Common Stock 2018-08-17 4 S 0 589 54.01 D 157866 I See footnotes Class A Common Stock 2018-08-17 4 S 0 722 54.01 D 193567 I See footnotes Class A Common Stock 2018-08-17 4 S 0 81 54.01 D 21781 I See footnotes Class A Common Stock 2018-08-17 4 S 0 10073 54.51 D 600221 I See footnotes Class A Common Stock 2018-08-17 4 S 0 2605 54.51 D 155261 I See footnotes Class A Common Stock 2018-08-17 4 S 0 3195 54.51 D 190372 I See footnotes Class A Common Stock 2018-08-17 4 S 0 360 54.51 D 21421 I See footnotes 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 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 person. Each Form 4 is filed by Designated Filer, Insight Holdings Group, LLC. Exhibit List: Exhibit 99.1 - Explanation of Responses Exhibit 99.2 - Joint Filers' Names and Addresses Exhibit 99.3 - Joint Filers' Signatures INSIGHT HOLDINGS GROUP, LLC 2018-08-20