Southwell David P
SEC-identified person · CIK 1251553 Identifier-verified
Public-company roles (from insider filings)
| Company | Capacity as filed | Filings |
|---|---|---|
| PTC Therapeutics, INC. PTCT | Director | filed 2013 - 2026 |
| Rocket Pharmaceuticals, INC. RCKT | Director · See Remarks | filed 2015 - 2025 |
| Tscan Therapeutics, Inc. TCRX | Director · Chief Executive Officer | filed 2021 - 2023 |
| Spero Therapeutics, Inc. SPRO | Director | filed 2018 - 2018 |
| Human Genome Sciences INC HGSI | Director · David Southwell | filed 2008 - 2012 |
| THL Credit, Inc. TCRD | Director | filed 2010 - 2010 |
| Biosphere Medical INC BSMD | Director | filed 2006 - 2010 |
| Sepracor INC /DE/ SEPR | Chief Financial Officer | filed 2006 - 2007 |
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.