Money Buffett, world’s sixth-richest man, just donated billions more in Berkshire Hathaway stock June 23, 2023Jessica Guynn, USA TODAYComments Off on Buffett, world’s sixth-richest man, just donated billions more in Berkshire Hathaway stock The world's sixth-richest person is also its biggest philanthropist. Legendary investor Warren Buffett's charitable giving has topped $51 billion.