The Winklevoss twins, Cameron and Tyler, have become the first Bitcoin billionaires, after the digital currency crossed $11,800 a coin over the weekend.
The brothers, who are best known for suing Facebook founder Mark Zuckerberg in 2008 over claims he stole the idea for the social network from them, invested heavily in Bitcoin early on, after being awarded $65 million in their lawsuit from Facebook.
According to Fortune, the Winklevosses first invested in the cryptocurrency when it was trading at $120 per coin.
As of press time, Bitcoin was trading at nearly $16,000 USD a coin.
Back in 2013, the twins told the New York Times that they owned more than $11 million worth of bitcoin, which made them the first well-known figures to divulge such a hefty stake in the speculative asset.
It’s unclear exactly how much Bitcoin they own today, but their Bitcoin stash is reportedly valued at over $1 billion USD.
Despite forecasters calling Bitcoin’s dramatic rise a “bubble”, the Winklevosses have said they are committed to the digital currency. “We’ve never sold a bitcoin, we’re in it for the long haul,” Cameron told CNN Money in 2015.