Saudi Arabia used about 86% of its 2,800 PAC-3 interceptors in the first 38 days of combat, leaving just 400 by April.

Intelligence summary

Saudi Arabia used about 86% of its 2,800 PAC-3 interceptors in the first 38 days of combat, leaving just 400 by April. The US expended about 65% of its Patriot interceptors between February and July, leaving fewer than 850, down from 2,330 before the Iran War. Source: Reuters