Cameron Howard Winklevoss (born August 21, 1981) is an American entrepreneur, investor, Olympic rower, and cryptocurrency pioneer. Together with his identical twin brother Tyler Winklevoss, he co-founded the Gemini cryptocurrency exchange and became one of the first publicly known Bitcoin billionaires. The Winklevoss twins are widely recognized for their early, large-scale bet on Bitcoin and for their protracted legal battle with Mark Zuckerberg over the founding of Facebook.
Background
Cameron Winklevoss was born in Southampton, New York, and grew up in Greenwich, Connecticut. His father, Howard Winklevoss, is an actuarial scientist and professor at the University of Pennsylvania's Wharton School. Cameron attended Greenwich Country Day School and Brunswick School before enrolling at Harvard University in 2000, where he majored in economics and graduated in 2004. He later earned an MBA from the Said Business School at the University of Oxford.
At Harvard, Cameron and Tyler were members of the varsity rowing team and the Porcellian Club, one of the university's most exclusive final clubs. Their athletic talent carried them to elite international competition: the brothers represented the United States at the 2008 Beijing Olympics in the men's pair rowing event, finishing sixth.
Facebook Lawsuit
In 2002, Cameron and Tyler co-founded HarvardConnection (later renamed ConnectU) with classmate Divya Narendra, a social networking platform for Harvard students. In late 2003, they recruited fellow student Mark Zuckerberg to write code for the site. However, Zuckerberg allegedly delayed work on ConnectU while secretly developing his own competing platform, TheFacebook.com, which launched in February 2004.
The Winklevoss twins filed a lawsuit against Zuckerberg in 2004, alleging theft of intellectual property. The case was settled in February 2008 for approximately $65 million -- $20 million in cash and $45 million in Facebook shares. The twins later attempted to challenge the settlement, arguing that Facebook had undervalued its stock, but the U.S. Ninth Circuit Court of Appeals upheld the agreement in 2011.
The dispute became part of popular culture through the 2010 film The Social Network, directed by David Fincher, in which actor Armie Hammer portrayed both twins.
Bitcoin Involvement
Cameron and Tyler Winklevoss first learned about Bitcoin in 2012 while vacationing in Ibiza, reportedly introduced to the concept by fellow early adopter Charlie Shrem. They used a portion of their Facebook settlement proceeds to acquire approximately 120,000 BTC -- roughly $11 million worth at the time -- making them among the largest individual holders of Bitcoin in the world.
In July 2013, the twins filed the first-ever application for a Bitcoin exchange-traded fund (ETF) with the U.S. Securities and Exchange Commission -- the Winklevoss Bitcoin Trust. The SEC rejected the application in March 2017, citing concerns about market manipulation in unregulated cryptocurrency markets. A second application was rejected in July 2018. Although the twins did not succeed in securing approval, their effort paved the way for the eventual approval of spot Bitcoin ETFs in January 2024.
Their story as early Bitcoin investors and evangelists features prominently in Nathaniel Popper's Digital Gold, which documents the eccentric early community that believed in Bitcoin's potential.
Gemini
In 2014, Cameron and Tyler co-founded Gemini, a regulated cryptocurrency exchange headquartered in New York City. The exchange went live on October 25, 2015, and distinguished itself by prioritizing regulatory compliance, obtaining a BitLicense from the New York Department of Financial Services (NYDFS). Cameron serves as President of Gemini.
Gemini later launched the Gemini Earn program, which allowed customers to lend cryptocurrency for yields of up to 13%, with Genesis Global Capital as its sole counterparty. When Genesis filed for bankruptcy in January 2023, approximately $1.1 billion in Earn customer assets were frozen. In February 2024, Gemini reached a settlement with NYDFS, committing to return the full $1.1 billion to affected customers and paying a $37 million fine.
In September 2025, Gemini began trading on the Nasdaq Global Select Market under the ticker symbol GEMI following its initial public offering, marking a significant milestone for the exchange and the broader cryptocurrency industry.
Charlie Shrem Dispute
In November 2018, the Winklevoss twins sued Charlie Shrem, founder of the early Bitcoin company BitInstant, alleging that Shrem had misappropriated approximately 5,000 BTC that he had been entrusted to purchase on their behalf in 2012. The case was settled in April 2019, with both parties bearing their own legal costs and the specific terms kept confidential.
Legacy
Cameron Winklevoss, alongside his brother Tyler, occupies a unique position in Bitcoin history. Their willingness to invest a significant portion of their wealth into Bitcoin at a time when it was still widely dismissed as a curiosity gave legitimacy to the asset among mainstream investors. Their push for a regulated exchange and a Bitcoin ETF -- years before either was fashionable -- demonstrated a conviction that institutional infrastructure was essential for Bitcoin's long-term adoption.
External Links
- Gemini Exchange
- Cameron Winklevoss on X (Twitter)
- Cameron Winklevoss on Wikipedia
- Winklevoss Capital
References
- Tyler Winklevoss -- twin brother and co-founder of Gemini
- Charlie Shrem -- early Bitcoin entrepreneur involved in legal dispute with the twins
- Digital Gold -- Nathaniel Popper's narrative history featuring the Winklevoss twins' early Bitcoin involvement
- Satoshi Nakamoto -- creator of the Bitcoin protocol that the Winklevoss twins championed