The Dean of Admission said the targeted class size was 780.
Here is what Wesleyan has published about its waitlist:
Most activity on the waitlist will start in early May, once we have heard from all the students we have admitted. However, there is an inevitable “ripple effect” when other colleges go to their waitlists and some of those who deposited at Wesleyan choose to accept an offer of admission from another institution. These waves can go on until the end of June. We notify all those still waiting as soon as we know that we will not admit any more people from our waitlist.