Appian CEO Matthew Calkins Sells 50,000 Shares Under Rule 10b5-1 Plan

Matthew W. Calkins, CEO and President of Appian Corp, sold 50,000 shares of Class A Common Stock on June 8, 2026, at a weighted average price of $24.13 per share. The sales occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by Calkins on March 5, 2026. The shares were sold in multiple transactions at prices ranging from $23.81 to $24.24. Following the transaction, Calkins retains ownership of 1,769,144 shares. The filing was signed by attorney-in-fact Angela Patterson on June 10, 2026. This transaction represents a significant insider sale by the company's CEO, though it was executed under a pre-established trading plan that provides legal protection against insider trading allegations.