On 11 July 2015, Iwata died from a bile duct tumor at the age of 55. Following his death, representative directors Genyo Takeda and Shigeru Miyamoto jointly led the company on an interim basis until the appointment of Tatsumi Kimishima as Iwata's successor on 16 September 2015. In addition to Kimishima's appointment, the company's management organization was also restructured—Miyamoto was named "Creative Fellow" and Takeda was named "Technology Fellow".