APPIAN CORP — Director's Dealing 2026

Feb 19, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: APPIAN CORP (APPN)
CIK: 0001441683
Period of Report: 2026-02-18

Reporting Person: Kilberg Bobbie G (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-18	Class A Common Stock	C	21600	—	Acquired	21600	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-18	Stock Option (Right to Buy)	$11.17	M	21600	Disposed	2027-01-31	Class B Common Stock (21600)	Direct
2026-02-18	Class B Common Stock	$	M	21600	Acquired		Class A Common Stock (21600)	Direct
2026-02-18	Class B Common Stock	$	C	21600	Disposed		Class A Common Stock (21600)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	38431	Indirect

Footnotes

F1: Pursuant 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.

F3: Each 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))

F4: 1,246 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 25,939 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 882 shares previously owned directly that were contributed to the WB Trust on 1/27/2026.

F5: Fully vested.