X0306 4 2020-12-21 0001441683 APPIAN CORP APPN 0001659179 Abdiel Capital Management, LLC C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK NY 10016 0 0 1 0 0001508239 Abdiel Qualified Master Fund LP C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK NY 10016 0 0 1 0 0001362771 Abdiel Capital LP C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK NY 10016 0 0 1 0 0001578684 Abdiel Capital Advisors, LP C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK NY 10016 0 0 1 0 0001659198 Moran Colin T. C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK NY 10016 0 0 1 0 Class A Common Stock 2020-12-21 4 J 0 203674 0 D 6131078 I By Abdiel Qualified Master Fund, LP Class A Common Stock 2020-12-21 4 J 0 122204 0.0 A 122204 I By Colin T. Moran Class A Common Stock 2020-12-21 5 G 0 122204 0.0 D 0 I By Colin T. Moran Distribution in kind of shares of Common Stock by Abdiel Qualified Master Fund, L.P. to two of its limited partners, to satisfy such limited partners' partial redemption of their respective interests in the partnership. This share number represents the aggregated holdings of Abdiel Qualified Master Fund, LP ("AQMF") and Abdiel Capital, LP ("ACLP"). Abdiel Capital Management, LLC is the general partner of AQMF and ACLP, and Abdiel Capital Advisors, LP serves as the investment manager of AQMF and ACLP. Colin T. Moran is the managing member of Abdiel Capital Management, LLC and Abdiel Capital Partners, LLC, which is the general partner of Abdiel Capital Advisors, LP. By virtue of the foregoing relationships, each of the reporting persons may be deemed to beneficially own the securities held by AQMF and ACLP. Each reporting person disclaims beneficial ownership of such securities, except to the extent of its or his pecuniary interest therein. Shares directly held by Colin T. Moran. On December 21, 2021, Colin T. Morin made a charitable gift of 122,204 shares. /s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC, general partner of Abdiel Qualified Master Fund, LP 2020-12-23 /s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC, general partner of Abdiel Capital, LP 2020-12-23 /s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC 2020-12-23 /s/ Colin T. Moran as managing member of Abdiel Capital Partners, LLC, general partner of Abdiel Capital Advisors, LP 2020-12-23 /s/ Colin T. Moran, individually 2020-12-23