Notification when signal provider makes a withdrawal / deposit

Is it possible to receive a notification of some sort when a signal provider deposits money into or withdraws money from their account?

I don't think that is possible, the only way to know that is to keep track of signal's history, through its MQL5 page.
I agree with Eleni, so that is not possible for sure. Keep on eye of your signal provider's signal page on MQL5.