Bobbie G. Kilberg - 18 Feb 2026 Form 4 Insider Report for APPIAN CORP (APPN)

Role: Director
Signature: /s/ Angela Patterson, Attorney-in-Fact
Issuer symbol: APPN
Transactions as of: 18 Feb 2026
Net transactions value: +$241,272
Form type: 4
Filing time: 19 Feb 2026, 16:03:39 UTC
Previous filing: 05 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Kilberg Bobbie G	Director	C/O APPIAN CORPORATION, 7950 JONES BRANCH DRIVE, MCLEAN	/s/ Angela Patterson, Attorney-in-Fact	19 Feb 2026	0001362638

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	APPN	Class A Common Stock	Conversion of derivative security		+21,600			21,600	18 Feb 2026	Direct	F1, F2, F3
holding	APPN	Class A Common Stock						38,431	18 Feb 2026	By trust	F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	APPN	Stock Option (Right to Buy)	Options Exercise	$0	-21,600	-50%	$0.000000	21,600	18 Feb 2026	Class B Common Stock	21,600	$11.17	Direct	F5
transaction	APPN	Class B Common Stock	Options Exercise	$241,272	+21,600		$11.17	21,600	18 Feb 2026	Class A Common Stock	21,600		Direct	F2, F3
transaction	APPN	Class B Common Stock	Conversion of derivative security	$0	-21,600	-100%	$0.000000	0	18 Feb 2026	Class A Common Stock	21,600		Direct	F1, F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
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.