US Advisor & Board Member
Mark Jacobstein was the CBO of Immunai and CUEO of Guardant Health. Prior to this Mark was CEO of mobile VOIP pioneer iSkoot until its acquisition by Qualcomm, an EVP at loopt with Sam Altman, and the cofounding President of Sequoia-backed Digital Chocolate, a pioneer in mobile games. In 1994 Mark was cofounding CEO of Small World Sports, where he invented online fantasy sports before selling the business to Paul Allen, and cofounded Small World Software, which he sold to iXL prior to its 1998 IPO. Mark has a BA from Harvard, where he concentrated in computer science.