{"id":"4e747006-eb5a-458a-9964-ff7d25bc30e1","slug":"stephen-winchell","name":"Stephen Winchell","bioBrief":"Director of DARPA (Defense Advanced Research Projects Agency), the 24th director, appointed May 2025. Physicist and AI/autonomy expert.","priorExits":null,"nationality":"American","verificationPosture":"reported","aliases":[],"sources":[{"url":"https://www.darpa.mil/about","title":"Stephen Winchell role","sourceName":"DARPA (official)"}],"reviewStatus":"reviewed","createdAt":"2026-08-22T04:43:20.663Z","updatedAt":"2026-08-23T15:14:15.378Z","educations":[],"companyRoles":[{"id":"f162a745-43e4-4941-9f08-b58e73a14556","personId":"4e747006-eb5a-458a-9964-ff7d25bc30e1","companyId":"c9c102ad-baf2-4c31-96f3-f691f0d2cc0e","role":"executive","roleTitle":"Director","startDate":null,"endDate":null,"currentRole":true,"roleBasis":"verified_secondary","createdAt":"2026-08-22T04:43:21.431Z","company":{"slug":"darpa","name":"DARPA"}}],"boardRoles":[],"investorRoles":[],"foundings":[]}