Sibold William John

Sibold William John is listed in filings as President and CEO at MADRIGAL PHARMACEUTICALS INC. This profile follows SEC Form 4 activity through Mar 6, 2026, including sale activity. Recent filings connect the profile to MADRIGAL PHARMACEUTICALS INC (MDGL). The current snapshot covers public activity from Aug 21, 2025 to Mar 6, 2026. Reported amounts are shown as $718.3K to $776.5K. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.