Where did the man who bought the bitcoin exchange place Mt. Gox from  Jed McCaleb move to?
Mark Karpelès Mark Marie Robert Karpelès (born June 1, 1985), also sometimes known by his online alias MagicalTux, was the CEO of bitcoin exchange Mt. Gox. He moved to Japan in 2009.
Kraken (bitcoin exchange) Kraken is a US based prominent bitcoin exchange operating in Canada, the EU, Japan, and the US, and "the world's largest bitcoin exchange in euro volume and liquidity".