Warren Buffett's net worth briefly crosses $100 billion mark Jeff Bezos, Elon Musk, Bill Gates, Bernard Arnault and Mark Zuckerberg currently have a net worth of over $100 billion. BusinessToday.In | March 12, 2021 | Updated 15:21 IST The 90-year-old Buffett has added $12.1 billion to his net worth in the current year so far. Berkshire Hathaway Inc chairman Warren Buffett joined $100 billion net worth club briefly, before his net worth declined to a tad below $100 billion mark on Friday. Buffett's net worth rose to $100.4 billion on Wednesday, as per the Bloomberg Billionaires Index. However, his wealth stood at $99.8 billion as on Friday. Jeff Bezos ($183 billion), Elon Musk ($180 billion), Bill Gates ($139 billion), Bernard Arnault ($125 billion) and Mark Zuckerberg ($104 billion) currently have a net worth of over $100 billion, as per the index.