Sec Form 4 Filing - Abdiel Capital Management, LLC @ APPIAN CORP - 2022-03-15

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Abdiel Capital Management, LLC 2. Issuer Name and Ticker or Trading Symbol APPIAN CORP [ APPN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O ABDIEL CAPITAL, 90 PARK AVENUE, 29TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 03/15/2022 (Street) NEW YORK, NY10016 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 03/15/2022 P 12,267 A $ 47.82( 2 ) 5,823,801 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/15/2022 P 414 A $ 47.82( 2 ) 5,824,215 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/15/2022 P 24,934 A $ 48.43( 3 ) 5,849,149 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/15/2022 P 842 A $ 48.43( 3 ) 5,849,991 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/15/2022 P 1,493 A $ 49.11( 4 ) 5,851,484 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/15/2022 P 50 A $ 49.11( 4 ) 5,851,534 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/16/2022 P 4,934 A $ 49.64( 5 ) 5,856,468 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/16/2022 P 166 A $ 49.64( 5 ) 5,856,634 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/16/2022 P 18,625 A $ 50.72( 6 ) 5,875,259 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/16/2022 P 625 A $ 50.72( 6 ) 5,875,884 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/16/2022 P 22,307 A $ 51.45( 7 ) 5,898,191 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/16/2022 P 749 A $ 51.45( 7 ) 5,898,940 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/16/2022 P 2,510 A $ 52.09( 8 ) 5,901,450 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/16/2022 P 84 A $ 52.09( 8 ) 5,901,534 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/17/2022 P 1,112 A $ 53.89( 9 ) 5,902,646 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/17/2022 P 37 A $ 53.89( 9 ) 5,902,683 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/17/2022 P 3,533 A $ 54.59( 10 ) 5,906,216 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/17/2022 P 118 A $ 54.59( 10 ) 5,906,334 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/17/2022 P 1,064 A $ 55.55( 11 ) 5,907,398 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/17/2022 P 36 A $ 55.55( 11 ) 5,907,434 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/17/2022 P 1,935 A $ 56.59( 12 ) 5,909,369 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/17/2022 P 65 A $ 56.59( 12 ) 5,909,434 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/17/2022 P 4,732 A $ 57.69( 13 ) 5,914,166 I By Abdiel Qualified Master Fund, LP ( 1 ) Class A Common Stock 03/17/2022 P 158 A $ 57.69( 13 ) 5,914,324 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/17/2022 P 10,750 A $ 58.56( 14 ) 5,925,074 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/17/2022 P 360 A $ 58.56( 14 ) 5,925,434 I By Abdiel Capital, LP( 1 ) Class A Common Stock 03/17/2022 P 25,254 A $ 59.28( 15 ) 5,950,688 I By Abdiel Qualified Master Fund, LP( 1 ) Class A Common Stock 03/17/2022 P 846 A $ 59.28( 15 ) 5,951,534 I By Abdiel Capital, LP( 1 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Abdiel Capital Management, LLC C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK, NY10016 X Abdiel Qualified Master Fund LP C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK, NY10016 X Abdiel Capital LP C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK, NY10016 X Abdiel Capital Advisors, LP C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK, NY10016 X Moran Colin T. C/O ABDIEL CAPITAL 90 PARK AVENUE, 29TH FLOOR NEW YORK, NY10016 X Signatures By: /s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC 03/17/2022 Signature of Reporting Person Date By: /s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC, general partner of Abdiel Qualified Master Fund, LP 03/17/2022 Signature of Reporting Person Date By: /s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC, general partner of Abdiel Capital, LP 03/17/2022 Signature of Reporting Person Date By: /s/ Colin T. Moran as managing member of Abdiel Capital Partners, LLC, general partner of Abdiel Capital Advisors, LP 03/17/2022 Signature of Reporting Person Date By: /s/ Colin T. Moran, individually 03/17/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The share numbers in Column 5 represent 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 Manag ement, 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. ( 2 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $47.58 to $48.00. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 3 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $48.00 to $48.97. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 4 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $49.00 to $49.30. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 5 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $49.32 to $49.83. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 6 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $50.00 to $50.99. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 7 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $51.00 to $51.99. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 8 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $52.02 to $52.09. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 9 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $53.76 to $53.99. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 10 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $54.09 to $54.98. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 11 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $55.00 to $55.85. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 12 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.12 to $56.89. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 13 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $57.21 to $57.99. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 14 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $58.00 to $58.99. The Reporting Persons undertake to provide to the Issuer, any security holder 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. ( 15 )The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $59.00 to $59.47. The Reporting Persons undertake to provide to the Issuer, any security holder 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.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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