Mark Zuckerberg started Facebook in his Harvard dorm room, and in 2013, was the most generous U.S. philanthropist with a donation of 18 million shares.
Back in December, the CEO gave 18 million shares to the Silicon Valley Community Foundation, which he’s also donated shares to in the past.
Based on Facebook’s current stock price of around $64, that gives the shares an estimated worth of over $1.15 billion.
According to The Boston Globe, it was the largest charitable gift on public record for 2013, and Zuckerberg and his wife Priscilla Chan joined The Chronicle of Philanthropy’s top 50 list of most generous Americans.
Combined, the top 50 donated $7.7 billion, and pledged $2.9 billion.
Last week, Facebook celebrated its 10th anniversary, and here’s the social network’s evolution over the years.