The present application provides salt forms of N-(4-(4-Amino-7-(1- isobutyrylpiperidin-4-yl)pyrrolo[1,2-f][1,2,4]triazin-5-yl)phenyl)-1- isopropyl-2,4-dioxo-3-(pyridin-2-yl)-1,2,3,4-tetrahydropyrimidine-5- carboxamide (I) and N-(4-(4-Amino-7-(1-isobutyrylpiperidin-4-yl) pyrrolo[1,2-f][1,2,4]triazin-5-yl)phenyl)-1-isopropyl-2,4-dioxo-3- phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxamide (II), which are useful as inhibitors of TAM kinases, as well as processes and intermediates related thereto.