X0306 4 2023-02-16 0 0001441683 APPIAN CORP APPN 0001578684 Abdiel Capital Advisors, LP 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 0001963356 Abdiel Partners, LLC C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK NY Abdiel Par 0 0 1 0 0001659179 Abdiel Capital Management, LLC 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 2023-02-16 4 P 0 1841 43.67 A 10017351 I By Abdiel Qualified Master Fund, LP Class A Common Stock 2023-02-16 4 P 0 59 43.67 A 10017410 I By Abdiel Capital, LP Class A Common Stock 2023-02-16 4 P 0 12113 44.88 A 10029523 I By Abdiel Qualified Master Fund, LP Class A Common Stock 2023-02-16 4 P 0 391 44.88 A 10029914 I By Abdiel Capital, LP Class A Common Stock 2023-02-16 4 P 0 82920 45.29 A 10112834 I By Abdiel Qualified Master Fund, LP Class A Common Stock 2023-02-16 4 P 0 2676 45.29 A 10115510 I By Abdiel Capital, LP The share numbers in Column 5 represent the aggregated holdings of Abdiel Qualified Master Fund, LP ("AQMF"), Abdiel Capital, LP ("ACLP") and Abdiel Partners, LLC ("APLLC"). Abdiel Capital Advisors, LP serves as the investment manager of AQMF, ACLP and APLLC. Abdiel Capital Management, LLC is the general partner 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 and the managing member of APLLC. By virtue of the foregoing relationships, Mr. Moran and Abdiel Capital Advisers LP may be deemed to beneficially own the securities held by AQMF, ACLP and APLLC, and Abdiel Capital Management LLC 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. The price reported for the Common Stock is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $43.37 to $43.91. The Reporting Persons undertake to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. The price reported for the Common Stock is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $44.40 to $45.00. The Reporting Persons undertake to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. The price reported for the Common Stock is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $45.00 to $45.50. The Reporting Persons undertake to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. By: /s/ Colin T. Moran as managing member of Abdiel Capital Partners, LLC, general partner of Abdiel Capital Advisors, LP 2023-02-21 By: /s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC, general partner of Abdiel Qualified Master Fund, LP 2023-02-21 By: /s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC, general partner of Abdiel Capital, LP 2023-02-21 By: /s/ Colin T. Moran as managing member of Abdiel Capital Partners, LLC, managing member of Abdiel Partners, LLC 2023-02-21 By: /s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC 2023-02-21 By: /s/ Colin T. Moran, individually 2023-02-21