Form 4 Filing for APPIAN CORP

Matthew W. Calkins, CEO and President of APPIAN CORP, reported the sale of 32,600 shares of Class A Common Stock on October 7, 2026, at a weighted average price of $37.32 per share. These sales were executed automatically under a Rule 10b5-1 trading plan. Following this transaction, Mr. Calkins owns 1,596,544 shares. Additionally, on the same date, Mr. Calkins reported the sale of another 12,400 shares of Class A Common Stock, also under a Rule 10b5-1 plan, at a weighted average price of $37.97 per share. The shares were sold in multiple transactions at prices ranging from $36.72 to $37.71 for the first batch and $37.73 to $38.19 for the second batch. Post-transaction, Mr. Calkins owns 1,584,144 shares.