Cari Tuna is an American philanthropist, known for co-founding and chairing Good Ventures and Open Philanthropy. She began her career as a reporter for The Wall Street Journal, covering enterprise technology, the California economy, and corporate management from 2008 to 2011. In 2011, she transitioned to full-time philanthropy. Married to Facebook and Asana co-founder Dustin Moskovitz, Tuna and Moskovitz became the youngest couple to sign Bill Gates and Warren Buffett's Giving Pledge in 2010.