In July 2007 Pincus founded his fourth company, Zynga Inc. In 2011, Pincus took the company public with a $1 billion IPO. Pincus served as CEO of the company from 2007 to 2013. On July 1, 2013, it was confirmed that Don Mattrick, the former President of Interactive Entertainment Business at Microsoft, was to succeed Pincus as CEO. Pincus also stepped down from his role as chief product officer to focus on his role as chairman of the board, the company announced in April 2014.