Daniel Thomas O
SEC-identified person · CIK 1538894 Identifier-verified
Public-company roles (from insider filings)
| Company | Capacity as filed | Filings |
|---|---|---|
| Gossamer Bio, Inc. GOSS | Director | filed 2019 - 2026 |
| Magenta Therapeutics, Inc. MGTA | Director | filed 2018 - 2022 |
| Zafgen, INC. ZFGN | Director | filed 2016 - 2021 |
| Juno Therapeutics, Inc. JUNO | Director | filed 2015 - 2018 |
| Celgene Corp /DE/ CELG | see remarks | filed 2012 - 2016 |
| Epizyme, Inc. EPZM | Director | filed 2013 - 2013 |
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.