NEW YORK (TheStreet) -- Facebook (FB) CEO Mark Zuckerberg and his wife Priscilla Chan donated almost $1 billion to charitable causes in 2013, topping The Chronicle of Philanthropy's ranking of the 50 donors who gave the most to charity.
Zuckerberg, 29 year old, and Chan, 28, gave $992.2 million to charitable causes, propelling them to the top of the philanthropic list, up from second place in 2012. The San Mateo, Calif.-based Silicon Valley Community Foundation was the primary beneficiary of the couple's giving, according to The Chronicle of Philanthropy.
Shares of Facebook, which recently crushed Wall Street's fourth-quarter estimates, have risen more than 125% over the last 12 months.
Energy magnate George Mitchell, who died last year, was second on the list, with a bequest of around $750 million via his Cynthia and George Mitchell foundation, while Nike (NKE) co-founder Phil Knight and his wife Penelope came in third with a $500 million donation to the Oregon Health and Science University Foundation.
Former New York mayor and Bloomberg founder Michael Bloomberg took fourth place on the list with a $452 million donation to a range of non-profits and programs to help city governments around the world. John Arnold, founder of hedge fund Centaurus Energy, and his wife Laura, donated $296.2 million via their John and Laura Arnold Foundation and a "notable gift" to the Fidelity Charitable Gift Fund.
In addition to Zuckerberg and his wife, the tech sector was well-represented in the top ranks of American philanthropists. eBay (EBAY) founder Pierre Omidyar and his wife Pam took seventh place on the list with donations totaling $225 million, while Qualcomm (QCOM) co-founder Irwin Jacobs and his wife Joan were in eighth place with donations of $221.1 million. In ninth place, Google (GOOG) co-founder Sergey Brin and his wife Anne Wojcicki, co-founder of genetic testing company 23andME, gave $219 million to charitable causes.