William John Sibold, President and CEO at MADRIGAL PHARMACEUTICALS, INC. (MDGL), sold 1,577 shares at $492.42 ($777K) on 2026-01-26, disclosed to the SEC on 2026-01-26.
Open-market sale of $777k MDGL by President and CEO. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| MDGL | SELL | 2026-03-06 | $718K | — | Filing → |
| MDGL | SELL | 2025-12-04 | $1.4M | — | Filing → |
| MDGL | SELL | 2025-09-09 | $6.5M | — | Filing → |