AP information worth adding in additional info section?

At my school (800 kids enrolled in my entire high school), students generally aren’t allowed to take any APs before junior year (mainly due to prerequisites), but for the class about 5 years before mine, and every class since, they have been allowing some of the top sophomores to take AP Art History. Thus, my sophomore year I took AP Art History. As a rising senior now, I am the first and only sophomore to have gotten a 5 on an AP exam. Would that information be worth including in the additional information section?

No, that’s something your guidance counselor can share in a recommendation though.