Having had a quick look it seems like you are conflating the first two examples and also the
perpetrator wasn't trans identifying. And one of the attacks happened in a classroom, not a bathroom. Horrible that it was allowed to happen twice and thankfully he has been punished but it doesn't sound like a transgender issue, just a terrible person doing terrible things.
A teenager and her parents have filed a $30 million lawsuit against a Virginia school system after she was sexually assaulted in a women’s restroom by a male student.
apnews.com
LEESBURG, Va. (AP) — A special grand jury convened at the request of Virginia Gov. Glenn Youngkin has issued a scathing report against a northern Virginia school system accusing it of mishandling a student who sexually assaulted classmates at two different high schools last year.
apnews.com
I tried to find examples of multiple rapes in prisons by transwomen but there isn't a huge amount of instances that I can see. But if you can share some examples/studies I'll will be happy to read them. Well not happy as it will be depressing but you know what I mean.