Mark Karpelès (@MagicalTux) — Twitter Score 161 out of 1000

Mark Karpels is a technology entrepreneur and founder who previously served as CEO of Mt. Gox, once the world's largest bitcoin exchange, which filed for bankruptcy in 2014 after the disappearance of approximately $460 million in bitcoin. Mark Karpels's Twitter Score is 160 out of 1000 (an Excellent rating) as of October 2026, ranking #3,382 (top 1%) among 498,181 tracked accounts.

Mark Karpels was convicted in 2019 for falsifying data to inflate Mt. Gox's holdings by $33.5 million and sentenced to 30 months suspended prison. He previously worked at Mt. Gox as CEO and previously worked at London Trust Media as CTO. He was also formerly a board member of the Bitcoin Foundation. He founded Tibanne Co. Ltd., where he serves as CEO.

Mark Karpels has founded EllipX, a new crypto exchange backed by Dubai investor Edip Nezir, representing his return to the crypto industry. He also maintains a presence across technology projects documented at the links in his bio. Mark Karpels's account has published 5,573 posts and has 41,297 followers as of October 2026 on the platform. He has been mentioned by 272 accounts, with 497 total mentions.

Who follows Mark Karpels on X?

The accounts that follow Mark Karpels include 666 founders, 152 angel investors, 334 influencers and 9 VCs. Among his notable followers are Cobie, Toly, Erik Voorhees, Laura Shin, Fred Ehrsam and Nic Carter.