Albert G.w. Biddle III - 01 Jan 2026 Form 4 Insider Report for APPIAN CORP (APPN)

Reporting relationship: Director
Issuer ticker: APPN
Reported as of: 01 Jan 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 Jan 2026, 16:11:48 UTC
Prior SEC filing: 03 Oct 2025
Source filing: View source filing
Reporting owner signature: /s/ Angela Patterson, Attorney-in-Fact

Key filing fact

Albert G.w. Biddle III filed Form 4 for APPIAN CORP (APPN) on 05 Jan 2026.

Key facts

This page summarizes Albert G.w. Biddle III's Form 4 filing for APPIAN CORP (APPN).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 05 Jan 2026, 16:11.

Change

Previous filing in this sequence was filed on 03 Oct 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001707248 Primary reporting owner

Biddle Albert G.W. III

Relationship: Director
Address: C/O APPIAN CORPORATION, 7950 JONES BRANCH DRIVE, MCLEAN
Signature: /s/ Angela Patterson, Attorney-in-Fact
Signature date: 05 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

APPN transaction

Class A Common Stock

Award

Transaction value: $0
Shares: +235
Change %: +0.72%
Price: $0.000000
Shares after: 32,735
Date: 01 Jan 2026
Ownership: Direct
Footnotes: F1

APPN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 15,479
Date: 01 Jan 2026
Ownership: See Footnote
Footnotes: F2

APPN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 15,479
Date: 01 Jan 2026
Ownership: See Footnote
Footnotes: F3

APPN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 15,479
Date: 01 Jan 2026
Ownership: See Footnote
Footnotes: F4

APPN holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 82,500
Date: 01 Jan 2026
Ownership: See Footnote
Footnotes: F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

These shares were granted under the Issuer's 2017 Equity Incentive Plan pursuant to the Issuer's Non-Employee Director Compensation Policy, as amended and approved by the Board of Directors on December 18, 2020.

Footnote F2

The reported securities are owned directly by a family trust established for the benefit of the Reporting Person's child ("Trust I"). The Reporting Person is the trustee of Trust I.

Footnote F3

The reported securities are owned directly by a family trust established for the benefit of the Reporting Person's child ("Trust II"). The Reporting Person is the trustee of Trust II.

Footnote F4

The reported securities are owned directly by a family trust established for the benefit of the Reporting Person's child ("Trust III"). The Reporting Person is the trustee of Trust III.

Footnote F5

The reported securities are owned directly by Jack Biddle, Inc. ("JBI"). The Reporting Person is the president of JBI.