SEC Form 4 · accession 0001362638-26-000012

APPIAN CORP · APPN

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Bobbie G Kilberg

Director

Period of report

Sep 9, 2026

Accepted (ET)

Sep 11, 2026 · 4:17 pm EDT

Rule 10b5-1 plan

box not checked

Issuer CIK

0001441683

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Class A Common Stock^F2,F3	Sep 9, 2026	C	10,800	—	A	10,800	D
Class A Common Stock^F4	holding	—	—		—	73,491	I	By trust

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Stock Option (Right to Buy)^F5	$11.17	Sep 9, 2026	M	10,800	D	—	Jan 31, 2027	Class B Common Stock	10,800	0	D
Class B Common Stock^F2,F3	—	Sep 9, 2026	M	10,800	A	—	—	Class A Common Stock	10,800	10,800	D
Class B Common Stock^F2,F3	—	Sep 9, 2026	C	10,800	D	—	—	Class A Common Stock	10,800	0	D

Explanation of responses

F1Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock.
F2(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued.
F3Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))
F41,246 shares are held by the Barbara Greene Kilberg Living Trust U/A dated July 1, 1998, of which William and Barbara Kilberg are the co-trustees; 1,246 shares held by the Kilberg Family Trust U/A dated October 13, 2021, of which Barbara Kilberg is the trustee; and 70,999 shares held by William & Barbara Kilberg Trustees of the William Kilberg Trust dated July 1, 1998 and Barbara & William Kilberg Trustees of the Barbara Kilberg Trust dated July 1, 1998, Tenants in Common ("WB Trust"). Includes 1,364 shares previously owned directly that were contributed to the WB Trust on August 19, 2026.
F5Fully vested.