Jack Lipstone is a business development professional and co-founder who heads DeFi business development at Sei Development Foundation and co-founded Rari Capital, a DeFi protocol that operated Earn pools and Fuse pools on Ethereum. Jack Lipstone's Twitter Score is 224 out of 1000 (an Excellent rating) as of August 2026, ranking #1,897 (top 0.5%) among 483,944 tracked accounts.
Jack Lipstone co-founded Rari Capital in 2020. According to an SEC press release dated September 18, 2024, the SEC alleged that Rari Capital and co-founder Jack Lipstone misled investors and engaged in unregistered broker activity in the operation of Earn and Fuse pools. The case was settled without admission or denial of the allegations, and final judgments included permanent injunctions, conduct-based injunctions, civil penalties, disgorgement with prejudgment interest, and five-year officer and director bars for the co-founders.
Jack Lipstone previously worked at Chapter One as an Investment Partner before joining Sei Development Foundation as Head of DeFi Business Development, contributing to the Sei Network ecosystem since March 2024. Jack Lipstone's account has published 10,045 posts and has been followed by 9,613 accounts. Jack Lipstone has been mentioned by 64 accounts, with 126 total mentions.
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The accounts that follow Jack Lipstone include 707 founders, 248 angel investors, 236 influencers and 12 VCs, among them Erik Voorhees, Ansem, Laura Shin, Stani, Kyle Samani and Mert.