| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Zamudio-Ramirez Pavel | Chief Customer Officer | 7950 JONES BRANCH DRIVE, MCLEAN | /s/ Angela Patterson, Attorney-in-Fact | 06 Nov 2025 | 0001913014 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | APPN | Class A Common Stock | Options Exercise | $0 | +1,034 | +4.5% | $0.000000 | 23,891 | 05 Nov 2025 | Direct | F1, F2 |
| transaction | APPN | Class A Common Stock | Tax liability | $9,708 | -331 | -1.4% | $29.33 | 23,560 | 05 Nov 2025 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | APPN | Restricted Stock Unit | Options Exercise | $0 | -1,034 | -100% | $0.000000 | 0 | 05 Nov 2025 | Class A Common Stock | 1,034 | Direct | F3, F4 |
| Id | Content |
|---|---|
| F1 | Each Restricted Stock Unit ("RSU") converts into Class A Common Stock on a one-for-one basis. |
| F2 | Includes 164, 162, 171, 168, and 165 shares acquired on 6/3/2025, 7/7/2025, 8/7/2025, 9/4/2025 and 10/3/2025, respectively, under the Appian Corporation Employee Stock Purchase Plan. |
| F3 | Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock (or its cash equivalent, at the discretion of the Issuer). |
| F4 | The RSUs were granted on November 2, 2021 and vested on November 5, 2025. |