50M pay package

https://www.bloomberg.com/news/articles/2025-01-31/point72-lures-marshall-wace-s-liu-with-50-million-pay-package?

I am quite intrigued by how the economics of such hires work. Based on his LinkedIn he looks like a discretionary equities L/S hire with 7 YOE. Pardon my ignorance: In my limited knowledge of Discretionary space SR of such PMs is not super high. Is it branding/client/capacity that he brings to the table? Keen to hear thoughts of experts.