Can our Director get notified when 'Pending Director Review' status is flipped?

Desired result :
When an artist flips a status to ‘Pending Director Review’ the director gets a notification that there is something ready for him to check.

Is this possible?

Our studio is working in multiple timezones so we don’t have production working around the clock, but we have directors and artists that do. We do have a view set up for the director showing only ‘Pending Director Review’ assets, however this relies on him checking multiple times a day. I’m wondering if we can some how push notifications to him when an asset is ready for review?