Form 4 Filing for APPIAN CORP by Mark Steven Lynch

This filing details a Form 4 submission for APPIAN CORP (APPN) by Mark Steven Lynch, a director. On October 1, 2026, Mr. Lynch acquired 886 shares of Class A Common Stock through a grant under the Issuer's 2017 Equity Incentive Plan, as per the Non-Employee Director Compensation Policy. The shares were granted at a price of $0.0 per share. Following this transaction, Mr. Lynch now holds 47,514 shares of Class A Common Stock directly. The filing was signed on October 2, 2026, by Angela Patterson, as Attorney-in-Fact.