Facebook CEO Mark Zuckerberg surpassed Warren Buffett to become the world's third-wealthiest person, Bloomberg reports.

The big picture: This marks the first time that the top three richest people in the world — Zuckerberg, Amazon's Jeff Bezos, and Microsoft's Bill Gates — made their fortunes from technology. Zuckerberg is worth $81.6 billion, per Bloomberg. Buffett is reportedly falling in the ranks "thanks to his charitable giving."