Giovanni Mongardi Title: Coisotropic subvarieties of some IHS manifolds Abstract: In this talk, we will overview recent and not so recent results about special coisotropic subvarieties in IHS manifolds, focusing on the case of ample uniruled divisors. I will present existence and non existence results, and survey "what can be saved" when there are no uniruled divisors ruled by a primitive curve. This is a joint work with F. Charles and G. Pacienza