Cheng Peng wrote:
imho, it just suggests this is not the first time he was included on the list.
I think you are right about Max Levchin being included in Fortune's "list" as one of the most influential people more than one time. That's why he's referred to as a returnee. In other words, he's a returnee to Fortune Magazine's annual list.
The 海归 interpretation is wrong for sure; because the guy still lives in the U.S..
[Edited at 2013-11-11 01:56 GMT]