 Contemporaneously with the raising of the firm's fourth large-cap fund in 2013, 'Silver Lakes new four amigos', a group of four investment professionals Mike Bingle, Egon Durban, Ken Hao and Greg Mondre, all of whom had been with the firm since its founding took leadership positions as managing partners in the firm alongside founder Jim Davidson.In October 2013, it was announced that Skype's chief operating officer and development chief, Mark Gillett would depart from Microsoft  and succeed Giancarlo as a managing director and head of value creation, while Giancarlo would transition to be a senior advisor to the firm.Since inception in 1999, Silver Lake has made investments through leveraged buyout transactions, minority growth investments and PIPE investments.