UCLA Math hosted a 2007 symposium featuring four UC Fields Medalists: Vaughan Jones (1990, UC Berkeley), Efim Zelmanov (1994, UC San Diego), Richard Borcherds (1998, UC Berkeley) and Terence Tao (2006, UCLA).
Vaughan Jones, UC Berkeley Efim Zelmanov, UC San Diego Richard Borcherds, UC Berkeley Terence Tao, UCLA