Bruce Booth

Companies

• Sionna Therapeutics, Inc.Board member Feb 6, 2025 to now¹
• Vigil Neuroscience, Inc.Board member Jan 6, 2022 to now²
• Kymera TherapeuticsBoard member Aug 20, 2020 to now³
• Tectonic Therapeutic, Inc.Board member Jun 20, 2018 to Jun 8, 2023⁴
• Magenta TherapeuticsBoard member Jun 20, 2018 to Jun 30, 2022⁵
• Cogent Biosciences, Inc.Board member Mar 28, 2018 to Jul 6, 2020⁶
• Viridian Therapeutics, Inc.\DEBoard member Feb 13, 2017 to Jun 28, 2018⁷
• Zafgen (United States)Board member Jun 18, 2014 to Jan 5, 2018⁸

Holdings

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

Shares held

• KTKymera Therapeutics KYMR462,856 shares⁹$50.1M at $108.14Jun 29, 2026
• STSionna Therapeutics, Inc. SION686,567 shares¹⁰$2.8M at $4.11Oct 21, 2025
• VNVigil Neuroscience, Inc.0 shares¹¹Aug 5, 2025

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

Recent filings

• Jun 29, 2026Sold 3,024 shares at $107.76 of Kymera Therapeutics¹²
• Jun 29, 2026Sold 2,318 shares at $106.63 of Kymera Therapeutics¹²
• Jun 29, 2026Sold 848 shares at $105.78 of Kymera Therapeutics¹²
• Jun 29, 2026Sold 19,093 shares at $107.76 of Kymera Therapeutics¹²
• Jun 29, 2026Sold 14,613 shares at $106.63 of Kymera Therapeutics¹²
• Jun 29, 2026Sold 5,471 shares at $105.78 of Kymera Therapeutics¹²
• Jun 29, 2026Sold 130 shares at $111.20 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 1,078 shares at $110.67 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 1,104 shares at $109.75 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 1,498 shares at $108.28 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 2,698 shares at $107.76 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 2,133 shares at $106.63 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 157 shares at $111.20 of Kymera Therapeutics¹³
• Jun 29, 2026Sold 770 shares at $105.78 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 1,199 shares at $110.67 of Kymera Therapeutics¹³
• Jun 29, 2026Sold 934 shares at $111.20 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 1,239 shares at $109.75 of Kymera Therapeutics¹³
• Jun 29, 2026Sold 7,723 shares at $110.67 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 1,688 shares at $108.28 of Kymera Therapeutics¹³
• Jun 29, 2026Sold 7,968 shares at $109.75 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 907 shares at $111.20 of Kymera Therapeutics¹³
• Jun 29, 2026Sold 10,848 shares at $108.28 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 7,602 shares at $110.67 of Kymera Therapeutics¹³
• Jun 29, 2026Sold 19,419 shares at $107.76 of Kymera Therapeutics⁹
• Jun 29, 2026Sold 7,833 shares at $109.75 of Kymera Therapeutics¹³