During its first three years of existence, Paris Saint-Germain was fan-owned and had 20,000 "socios". The club was run by board members Guy Crescent, Pierre-Étienne Guyot and Henri Patrelle. A group of wealthy French businessmen, led by Daniel Hechter and Francis Borelli, would then buy the club in 1973. PSG changed hands in 1991, when Canal+ took over, and then again in 2006 with the arrival of Colony Capital. Tamim bin Hamad Al Thani, ruler of Qatar, has been PSG's owner since 2011 through state-owned shareholding organization Qatar Sports Investments (QSI).