Daniel J. Brennan

Companies

• MADRIGAL PHARMACEUTICALS, INC.Board member Aug 5, 2025 to now¹
• Waters CorporationBoard member Nov 23, 2022 to now²
• Boston ScientificChief financial officer Jan 9, 2014 to Feb 19, 2025³
• Nuance CommunicationsBoard member Sep 12, 2018 to Mar 4, 2022⁴

Holdings

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

Shares held

• Boston Scientific BSX225,808 shares⁵$10.0M at $44.30Feb 19, 2025
• MPMADRIGAL PHARMACEUTICALS, INC. MDGL1,371 shares⁶$630.4K at $459.81Jun 17, 2026
• WWaters Corporation WAT1,355 shares⁷$601.8K at $444.15Feb 25, 2026
• Nuance Communications NUAN0 shares⁸Mar 4, 2022

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

Recent filings

• Jun 17, 2026Granted 404 shares of MADRIGAL PHARMACEUTICALS, INC.⁶
• Feb 25, 2026Granted 23 shares of Waters Corporation⁷
• Jan 2, 2026Granted 307 shares of Waters Corporation⁹
• Aug 1, 2025Granted 967 shares of MADRIGAL PHARMACEUTICALS, INC.¹⁰
• Feb 19, 2025Sold 67,333 shares at $105.24 of Boston Scientific⁵
• Feb 19, 2025Exercised options 9,483 shares at $40.12 of Boston Scientific⁵
• Feb 19, 2025Exercised options 15,642 shares at $27.09 of Boston Scientific⁵
• Feb 19, 2025Exercised options 16,865 shares at $17.26 of Boston Scientific⁵
• Feb 19, 2025Exercised options 18,533 shares at $24.55 of Boston Scientific⁵
• Feb 18, 2025Sold 14,630 shares at $104.67 of Boston Scientific⁵
• Feb 18, 2025Sold 2,900 shares at $104.08 of Boston Scientific⁵
• Feb 17, 2025Shares withheld for tax 2,217 shares at $106.11 of Boston Scientific¹¹
• Feb 17, 2025Exercised options 4,584 shares of Boston Scientific¹¹
• Feb 16, 2025Shares withheld for tax 2,052 shares at $106.11 of Boston Scientific¹¹
• Feb 16, 2025Exercised options 4,243 shares of Boston Scientific¹¹
• Feb 14, 2025Shares withheld for tax 2,110 shares at $106.11 of Boston Scientific¹¹
• Feb 14, 2025Exercised options 4,362 shares of Boston Scientific¹¹
• Feb 12, 2025Sold 15,087 shares at $105.07 of Boston Scientific¹²
• Feb 12, 2025Exercised options 15,087 shares at $16.31 of Boston Scientific¹²
• Feb 12, 2025Shares withheld for tax 1,767 shares at $105.77 of Boston Scientific¹³
• Feb 12, 2025Exercised options 3,654 shares of Boston Scientific¹³
• Feb 11, 2025Shares withheld for tax 16,414 shares at $105.98 of Boston Scientific¹²
• Feb 11, 2025Granted 33,944 shares of Boston Scientific¹²
• Jan 3, 2025Sold 9,689 shares at $89.86 of Boston Scientific¹⁴
• Jan 2, 2025Granted 319 shares of Waters Corporation¹⁵