4. Bill Gates
Bill Gates cofounded Microsoft and is known for the philanthropic efforts of his charitable foundation, the Bill & Melinda Gates Foundation. The charity has targeted a variety of issues and diseases around the world, and in May 2020 it pledged $300 million to fight the coronavirus pandemic. Gates owns just over 1% of Microsoft stock to date and is invested in a variety of other stocks and assets, giving him a net worth of $132.0 billion. He stepped down as a board member of Microsoft in 2020 after serving in leadership since founding with Paul Allen in 1975. He has donated over $35 billion during his lifetime, and has pledged to give away 99% of his wealth alongside Warren Buffet.
