This article by RUSI has some munition depletion estimates.
https://www.rusi.org/explore-our-research/publications/commentary/over-11000-munitions-16-days-iran-war-command-reload-governs-endurance

Article is dated to March 24th. By today according to RUSI Israel should be out of Arrow AA missiles and and "Partner operated/Allied" (I assume Gulf states) THAAD munitions are gone.