Gibney was an early investor in PayPal and became a multi-millionaire while still majoring at Stanford University in science and technology studies and industrial engineering.
After PayPal was acquired by eBay, Peter Thiel offered Gibney a job at his new hedge fund Clarium Capital. There Gibney advised Thiel in support of his early $500,000 investment in Facebook.
Later he became a Founders Fund partner, championing the philosophy that startups should change the world, not just build a business. He wrote the Founders Fund manifesto.
In December 2012, according to TechCrunch, he left Founders Fund.
Gibney is the son of a Chinese mother who was a chemical engineer, and a father who worked in the furniture industry. He grew up on America’s east coast.