Mike Novogratz, a former Wall Street executive, founded Galaxy Digital in his fifties, leveraging his extensive financial experience to become a leading figure in the cryptocurrency industry. Novogratz, who appeared on the Forbes billionaire list in 2008, began investing in Bitcoin in 2013 when it was priced at just $100, investing $7 million. His early investments in Bitcoin and Ethereum yielded over $250 million in profits by 2017. Novogratz's career includes 11 years at Goldman Sachs, where he rose to partner, and a partnership at Fortress Investment Group, where he first encountered cryptocurrencies. Despite a significant financial setback in 2015 due to a misjudgment on Brazilian interest rates, he left Wall Street and founded Galaxy Digital in 2017. The firm quickly became a top-tier blockchain service provider and asset management company, attracting traditional investors to the crypto space.