I believe that when founders stock is fully vested, additional grants are an option to retain the founders beyond 4 years (or whatever the founders stock beatin

I believe that when founders stock is fully vested, additional grants are an option to retain the founders beyond 4 years (or whatever the founders stock beating period is). 11 years as CEO likely led to additional grants. For a much bigger example, look at the additional grant Musk got this last week for Tesla.