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MK
Dossier
Mt. Gox CEO during its collapseMaturation✓ Verified
Mark Karpelès
Ran the exchange whose failure shook early Bitcoin.
Known as MagicalTux, Mark KarpelèsActive Mar 2011 →
Why they matter
Mt. Gox's failure under his watch seared a lesson into Bitcoin's culture — "not your keys, not your coins" — that shapes how people hold Bitcoin to this day.
Profile
Developer who acquired Mt. Gox from Jed McCaleb in 2011 and ran it as it became the dominant Bitcoin exchange — until it collapsed in February 2014, losing roughly 850,000 BTC and shattering early trust in custodians.