Insider Transactions of APPIAN CORP

Matthew W. Calkins, CEO and President of APPIAN CORP, reported the sale of 23,888 shares of Class A Common Stock on September 8, 2026, at a weighted average price of $34.73 per share. These sales were executed automatically under a Rule 10b5-1 trading plan. On the same date, he also sold 19,116 shares at a weighted average price of $35.58 and 1,996 shares at a weighted average price of $37.07, also pursuant to the same trading plan. Following these transactions, Mr. Calkins directly owns 1,629,144 shares of Class A Common Stock.