Zuckerberg named 2nd most charitable American

Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif., Tuesday, Jan. 15, 2013. (AP Photo/Jeff Chiu)

February 12, 2013 5:50:46 PM PST
One of Silicon Valley's wealthiest couples is also the most charitable. Facebook CEO and founder Mark Zuckerberg and his wife Priscilla Chan were named the second most generous Americans last year.

The couple donated about $500 million in Facebook stock in 2012. All of it went to the Silicon Valley Community Foundation.

Only Warren Buffett was more generous, donating $3.6 billion of his wealth to charity.