The exact reason that the two men left the company hasn't been made entirely clear. According to Automotive News, a statement said that Giorgetto Giugiaro went "to dedicate more time to his personal interests." Italdesign Giugiaro remains open and intends to keep growing, though, the same announcement asserts.
After stints at Bertone and Ghia, Giugiaro founded Italdesign in 1968. He created some masterpieces there, including '70s wedges like Maserati Merak, Lotus Esprit, and much more. The 2000s weren't so kind and 90.1 percent of the company was sold to Volkswagen Group in 2010. Former Audi design boss Wolfgang Egger took over styling duties there in late 2013, but he only lasted for about a year, leaving in late 2014. Since the sale, Italdesign has continued to work, including with the Gea concept at the 2015 Geneva Motor Show and the very mean-looking Parcour in 2013.
Giugiaro's designs are still highly prized, as well. On September 5, Bonhams is auctioning the Maserati Boomerang concept by him and expects to get around $4 million for it. The gallery above offers a few more examples of his and Italdesign's concepts for VW Group over the years.