A collection of bitcoin, litecoin and ethereum tokens.
Chris Ratcliffe | Bloomberg | Getty Images
LONDON — A Goldman Sachs executive has resigned after earning a fortune from a cryptocurrency investment, according to industry sources.
Aziz McMahon, Goldman’s managing director and head of emerging market sales in London, quit after making millions of pounds from a bet on the digital currency ether, three former employees at the investment bank told CNBC.
The former employees, who all know McMahon personally, preferred to remain anonymous due to the sensitive nature of the discussions. McMahon is believed to have cashed in at least £10 million ($14 million) worth of cryptocurrency, the…