William John Sibold

Companies

• MADRIGAL PHARMACEUTICALS, INC.Board member Sep 13, 2023 to now¹
• MADRIGAL PHARMACEUTICALS, INC.Chief executive officer Sep 13, 2023 to now¹
• MADRIGAL PHARMACEUTICALS, INC.President Sep 13, 2023 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• MPMADRIGAL PHARMACEUTICALS, INC. MDGL197,746 shares²$90.9M at $459.81Sep 11, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 11, 2026Sold 120 shares at $546.38 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 11, 2026Sold 761 shares at $544.83 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 11, 2026Sold 1,539 shares at $544.02 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 11, 2026Sold 1,202 shares at $542.60 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 11, 2026Sold 368 shares at $541.64 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 11, 2026Sold 687 shares at $540.59 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 11, 2026Sold 160 shares at $537.62 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 11, 2026Sold 218 shares at $535.94 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 11, 2026Sold 106 shares at $534.06 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 11, 2026Sold 60 shares at $533.09 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 160 shares at $542.55 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 362 shares at $541.65 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 505 shares at $540.19 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 215 shares at $539.03 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 520 shares at $538.30 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 640 shares at $537.17 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 1,040 shares at $536.11 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 644 shares at $535.27 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 396 shares at $534.20 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 512 shares at $533.09 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 368 shares at $531.99 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 522 shares at $530.23 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 347 shares at $529.27 of MADRIGAL PHARMACEUTICALS, INC.²
• Sep 9, 2026Sold 131 shares at $527.88 of MADRIGAL PHARMACEUTICALS, INC.²
• Jul 20, 2026Sold 280 shares at $555.05 of MADRIGAL PHARMACEUTICALS, INC.³