144 0001707384 XXXXXXXX LIVE 0001441683 APPIAN CORPORATION 001-38098 7950 Jones Branch Drive McLean VA 22102 7034428844 Mark Lynch Director Common Merrill Lynch

1800 K St NW Suite 800 Washington DC 20006

9530 256751 42872259 03/03/2026 NASDAQ Common 03/03/2026 Stock plan activity Issuer N 9530 03/03/2026 n/a Y 03/03/2026 Mark Lynch