You can probably leverage FERPA to get what you want if you spend enough time reading the fine print and are diligent. Universities don’t like it, though, and they have started destroying records to avoid having to give it up.
A better approach would be making friends with an admissions officer (preferably your regional one) at admitted students event and getting them to tell you. Admission officers will say a lot if you’re friendly enough, especially if they’re young, recently graduated, and not jaded yet so they’re still proud of all the insider information they know about the closely guarded secrets of top tier admissions.