Mark Karpelès (@MagicalTux) — Twitter Score 127 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 127 out of 1000 (an Excellent rating) as of July 2026, ranking #5,583 (top 5%) among 531,432 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 4,591 posts and has 31,514 followers as of July 2026 on the platform. He has been mentioned by 207 accounts, with 380 total mentions.

Who follows Mark Karpels on X?

The accounts that follow Mark Karpels include 503 founders, 100 angel investors, 324 influencers and 9 VCs. Among his notable followers are Cobie, Toly, Erik Voorhees, CoinDesk, Threadguy and Andrew Kang.