Booth Bruce
SEC-identified person · CIK 1451612 Identifier-verified
Public-company roles (from insider filings)
| Company | Capacity as filed | Filings |
|---|---|---|
| Kymera Therapeutics, Inc. KYMR | Director | filed 2020–2026 |
| Sionna Therapeutics, Inc. SION | Director | filed 2025–2026 |
| Vigil Neuroscience, Inc. VIGL | Director | filed 2022–2025 |
| Tectonic Therapeutic, Inc. TECX | Director | filed 2018–2023 |
| Magenta Therapeutics, Inc. MGTA | Director | filed 2018–2022 |
| Unum Therapeutics, Inc. UNUM | Director | filed 2018–2020 |
| Viridian Therapeutics, Inc.\DE VRDN | Director | filed 2017–2018 |
| Zafgen, INC. ZFGN | Director | filed 2014–2018 |
All roles under one Commission-assigned identifier - the same person by the SEC's own record, not by name matching. From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.