Arsenal Have Sold £194 Million Worth Of Players For Free
It meant that they didn't receive a transfer fee for the former Saint-Etienne forward.
But it's a familiar situation for Arsenal, who have let a number of their players leave for absolutely nothing in recent times.
Calum Chambers also left in January on a free, signing a three-and-a-half year contract with Aston Villa.
Fellow defenders Shkodran Mustafi, Sokratis Papastathopoulos and Sead Kolasinac have also gone for free, while so too did Henrikh Mkhitaryan and Mesut Ozil.
Overall, we're talking a whopping £194 million worth of signings that Arsenal have not received any money for.
And concerningly for Arsenal, they have a number of current players whose contracts are expiring in the summer window and risk losing them for free.
Striker Alexandre Lacazette and Eddie Nketiah look set to follow Aubameyang in departing without a transfer fee, as does midfielder Mohamed Elneny.
He is believed to have taken a salary cut at Barcelona, though there's talk the club have the option to terminate his deal in the event of an act of ill-discipline.