Cameron Howard Winklevoss (born August 22, 1981) is an American cryptocurrency and Bitcoin investor, Olympic rower, entrepreneur, and founder of Winklevoss Capital Management and Gemini cryptocurrency exchange. He competed in the men's pair rowing event at the 2008 Summer Olympics with his identical twin brother and rowing partner, Tyler Winklevoss. Winklevoss and his brother are known for co-founding HarvardConnection (later renamed ConnectU) along with Harvard classmate Divya Narendra. In 2004, the Winklevoss brothers sued Facebook founder Mark Zuckerberg, claiming he stole their ConnectU idea to create the popular social networking site Facebook. In addition to ConnectU, Winklevoss also co-founded the social media website Guest of a Guest with Rachelle Hruska. Forbes estimates that each twin has a cryptocurrency holding of $1.4 billion.