Sandy Weill

Sanford I. “Sandy” Weill is a banker, financier and philanthropist. He is a former chairman and chief executive of Citigroup. He served in those positions until October 1, 2003, and April 18, 2006, respectively.

He and his wife, Joan, arrived in Sonoma County in 2010, buying a 362-acre estate in the hills west of Sonoma. Last year, he gave $12 million to Sonoma State University — the largest gift in university history — that enabled the completion of the concert hall at the $145 million Green Music Center. That allowed SSU to fully open the music center after work had stalled. Weill also arranged a Mastercard sponsorship toward an outdoor pavilion at the music center.