Sibold William John, President and CEO of Madrigal Pharmaceuticals ($MDGL), sold about $9.2 million in company shares across six open market transactions over the past year. His most recent sale occurred on March 6, 2026. These sales rank him 1,203rd among over 11,000 insiders by total value sold, near the average of $8.6 million per insider and 6.4 transactions. He made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 4, 2026 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | A | Common Stock | 14995 | $0.00 | 163,492.0000 | 22,939,969 | 10.10% | 0.07% |
| March 4, 2026 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | A | Stock Option (Right to Buy) | 18743 | $0.00 | 18,743.0000 | 22,939,969 | 9999.99% | 0.08% |
| March 6, 2026 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | S | Common Stock | 1663 | $431.94 | 161,829.0000 | 22,939,969 | 1.02% | 0.01% |
| Jan. 26, 2026 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | S | Common Stock | 1577 | $492.42 | 148,497.0000 | 22,711,420 | 1.05% | 0.01% |
| Dec. 4, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | S | Common Stock | 2400 | $575.34 | 150,074.0000 | 22,711,420 | 1.57% | 0.01% |
| Dec. 3, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | M | Common Stock | 50000 | $0.00 | 152,474.0000 | 22,711,420 | 48.79% | 0.22% |
| Dec. 3, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | M | Performance Restricted Stock Units | 50000 | $0.00 | 0.0000 | 22,711,420 | 100.00% | 0.22% |
| Sept. 9, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | S | Common Stock | 7279 | $445.63 | 102,474.0000 | 22,080,246 | 6.63% | 0.03% |
| Aug. 21, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | S | Common Stock | 6485 | $400.03 | 110,884.0000 | 22,080,246 | 5.53% | 0.03% |
| Aug. 21, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | S | Common Stock | 1131 | $401.00 | 109,753.0000 | 22,080,246 | 1.02% | 0.01% |
| March 5, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | A | Common Stock | 13066 | $0.00 | 117,369.0000 | 22,080,246 | 12.53% | 0.06% |
| March 5, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | A | Stock Option (Right to Buy) | 22009 | $0.00 | 22,009.0000 | 22,080,246 | 9999.99% | 0.10% |
| Feb. 27, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | M | Performance Restricted Stock Units | 50000 | $0.00 | 0.0000 | 22,080,246 | 100.00% | 0.23% |
| Feb. 27, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | M | Common Stock | 50000 | $0.00 | 104,303.0000 | 22,080,246 | 92.08% | 0.23% |
| Jan. 24, 2025 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | S | Common Stock | 1584 | $335.24 | 54,303.0000 | 0 | 2.83% | 0.00% |
| Sept. 9, 2024 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | S | Common Stock | 6363 | $243.83 | 55,887.0000 | 0 | 10.22% | 0.00% |
| Jan. 23, 2024 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | A | Market Stock Unit | 12250 | $0.00 | 12,250.0000 | 0 | 9999.99% | 0.00% |
| Jan. 23, 2024 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | A | Common Stock | 12250 | $0.00 | 62,250.0000 | 0 | 24.50% | 0.00% |
| Jan. 23, 2024 | MADRIGAL PHARMACEUTICALS, INC. | $MDGL | Sibold William John | President and CEO | A | Stock Option (Right to Buy) | 18459 | $0.00 | 18,459.0000 | 0 | 9999.99% | 0.00% |