The two largest gifts announced over the last twelve months, both valued at substantially more than a billion dollars, involved the shift of assets (privately held stock) to a charitable foundation or foundations. Topping the list was Premji, who donated Wipro shares worth $7.5 billion — approximately 34 percent of the shares he controlled at the time the gift was announced — to the Bangalore-based Azim Premji Foundation, which is focused on education. Warren Buffett, who co-founded the Giving Pledge with Bill and Melinda Gates, claimed the second spot on the list with a gift of Berkshire Hathaway stock worth $3.6 billion to the Bill & Melinda Gates, Susan Thompson Buffett, Sherwood, Howard G. Buffett, and NoVo foundations.
Ranked third after Premji's and Buffett's donations was a $750 million gift from Stewart and Lynda Resnick to the California Institute of Technology in support of environmental sustainability research, followed by a $350 million pledge from T. Denny Sanford to the private National University System in support of efforts to address critical challenges in the education sector, and a $200 million gift from Phillip Terrence Ragon and Susan Ragon to endow a vaccine research center at Massachusetts General Hospital. Rounding out the top ten were gifts from private equity mogul Stephen A. Schwarzman (£150 million [$188 million], University of Oxford); the family of chemicals billionaire Jon M. Huntsman, Sr. ($150 million, University of Utah), medical-device billionaire Hansjörg Wyss ($131 million, Wyss Institute for Biologically Inspired Engineering at Harvard University), Chicago-based hedge fund mogul Kenneth C. Griffin ($125 million, Museum of Science and Industry, Chicago), and billionaire philanthropists Sanford and Joan Weill ($106 million, University of California, Berkeley, University of California, San Francisco, and University of Washington).