Mr. Marron pledged $40-million to New York University to create the Marron Institute on Cities and the Urban Environment.
Mr. Schwarzman committed $100-million to Tsinghua University, in Beijing, to create a program that will bring 200 graduate students a year to live and study on a new campus.
No. 19: Jack MacDonald (bequest)
Mr. MacDonald led a thrifty life to set aside as much money as he could for charity. At his death in September, he left nearly his entire estate to three groups in Seattle.
No. 33: Bruce and Suzie Kovner
The Kovners made two commitments totaling $65-million to the Juilliard School.
Mr. Robertson gave $50-million to his Robertson Foundation, which supports education, the environment, medical research, and religion and spirituality.
Stephen Ross pledged $200-million to the University of Michigan, where he is leading a $4-billion fundraising campaign.
No. 40: Arthur and Rebecca Samberg
The Sambergs pledged $25-million to Columbia Business School for its new Manhattanville campus.
No. 1: Mark Zuckerberg and Priscilla Chan
The couple gave 18 million shares of Facebook, valued at about $992.2-million, to the Silicon Valley Community Foundation.