It also appointed former FIA man Peter Bayer to become the team's first bespoke CEO, overseeing a wide range of organisational changes.
After the switch was announced Mekies continued in his sporting director role, while Ferrari and Red Bull worked out the terms and timing of his departure at Maranello and start date at Faenza.
Ferrari has now officially announced that Mekies is leaving his role at the end of this week.
"Laurent Mekies’ time at Scuderia Ferrari comes to an end this week," Ferrari announced on Thursday.
"The Racing Director will not be in Belgium and he leaves the Prancing Horse after four and a half seasons, during which time the team took seven wins.
"The entire team thanks him for his great contribution during those years."
Source: Autosport