Matthew Calkins plan to sell securities of Appian Corporation under Form 144

Matthew Calkins filed Form 144 to notify SEC of plan to sell 50000 units of Appian Corporation securities around 2026-07-07, with aggregate market value of $1,219,000.00. The total outstanding units is 42324735.0. The amount planned to be sold represents 0.12% of total outstanding units; Recent transactions in past 3 months include: On 06/08/2026, sold 50000 units for $1206275.00;