Zynga Vice Presidents Bill Mooney and Brian Birtwistle have departed, following other top managers amid slowing sales and a stock decline at the biggest maker of social games on Facebook, including FarmVille, a person with knowledge of the matter said.
Mooney, a vice president of studios, and Birtwistle, a vice president of marketing, resigned this week, said the person, who asked not to be identified because the departures aren’t public.
CEO Mark Pincus has been unable to keep managers from leaving as the company’s share price decline erodes the value of equity used to compensate staff. The CEO recently told staff they would receive option grants.
The departures of Mooney and Birtwistle came the same week that Mike Verdu, Zynga’s former chief creative officer, left to start his own company.