Michael Gronager, co-founder and CEO of blockchain analysis firm Chainalysis, has stepped down from his leadership role after a decade in the role. A Chainalysis spokesperson confirmed that Gronager has been on "leave" since September 25 due to "personal issues." It is unclear if Gronager plans to return or when he will return. Chainalysis President and COO Sari Granat will serve as interim CEO, the spokesperson said. Last October, Chainalysis laid off about 150 employees, or a little over 15% of its 900-person workforce, as the company planned to exit the commercial market and focus on government contracting, which accounted for about 70% of its revenue at the time. (The Block)