22 insiders reported 702 Form 4 transactions for MADRIGAL PHARMACEUTICALS, INC. (MDGL) over the past 18 months (most recent 2026-08-20). Recent activity: Kelley Shannon T (General Counsel) Sell 664 shares, REED JOHN C (Director) Buy 647 shares, Sibold William John (President and CEO) Sell 280 shares, Sibold William John (President and CEO) Sell 140 shares, Sibold William John (President and CEO) Sell 110 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Kelley Shannon T | General Counsel | Sell | 664 | $341,940 |
| 2026-08-18 | REED JOHN C | Director | Buy | 647 | $0 |
| 2026-07-20 | Sibold William John | President and CEO | Sell | 280 | $155,414 |
| 2026-07-20 | Sibold William John | President and CEO | Sell | 140 | $75,984 |
| 2026-07-20 | Sibold William John | President and CEO | Sell | 110 | $59,817 |
| 2026-07-20 | Sibold William John | President and CEO | Sell | 545 | $296,869 |
| 2026-07-20 | Sibold William John | President and CEO | Sell | 275 | $150,070 |
| 2026-07-20 | Sibold William John | President and CEO | Sell | 269 | $147,164 |
| 2026-07-20 | Sibold William John | President and CEO | Sell | 680 | $372,435 |
| 2026-07-20 | Sibold William John | President and CEO | Sell | 47 | $25,797 |
| 2026-07-20 | Sibold William John | President and CEO | Sell | 153 | $84,152 |
| 2026-07-20 | Sibold William John | President and CEO | Sell | 1 | $551 |
| 2026-07-20 | Sibold William John | President and CEO | Buy | 50,000 | $0 |
| 2026-06-18 | BAKER JULIAN | Director | Buy | 908 | $0 |
| 2026-06-18 | BAKER FELIX | Director | Buy | 908 | $0 |
| 2026-06-18 | BAKER BROS. ADVISORS LP | Director | Buy | 908 | $0 |
| 2026-06-18 | Baker Brothers Life Sciences LP | Director | Buy | 908 | $0 |
| 2026-06-18 | FOUSE JACQUALYN A | Director | Buy | 454 | $0 |
| 2026-06-18 | Taub Rebecca | Director | Buy | 454 | $0 |
| 2026-06-18 | Levy Richard S | Director | Buy | 454 | $0 |
| 2026-06-18 | 667, L.P. | Director | Buy | 908 | $0 |
| 2026-06-18 | Daly James M | Director | Buy | 454 | $0 |
| 2026-06-18 | Baker Bros. Advisors (GP) LLC | Director | Buy | 908 | $0 |
| 2026-06-18 | Brennan Daniel J. | Director | Buy | 404 | $0 |
| 2026-06-18 | BAKER JULIAN | Director | Buy | 908 | $0 |
Source: SEC Form 4 filings · as of 2026-08-20