Tech Insider
Tim Cook, Mark Zuckerberg, Vlad Tenev,  have extreme sleep schedules.
From Apple's Tim Cook (top left) to Meta's Mark Zuckerberg (top right) to Vlad Tenev of Robinhood (bottom left), CEOs have some pretty wild sleep routines.
Tech Insider
Andrew Landry, center, holds the trophy with Phil Mickelson, left, and CEO of American Express Steve Squeri
Stephen Squeri took over as CEO of American Express in 2018 after Kenneth Chenault stepped down from the position in 2017.