Each Ai is listed separately but you can see a list here. They all have a filing date of Friday.
https://www.inforuptcy.com/filings/browse-filings?count=50&page=2
It seems as if they are filing for most if not all to be Chapter 7. It's my understanding that as soon as they filed, Federal funds for students are cut off. Teach outs are going to be sparse if students can't get funding for those classes.