People · Operator
Named in public records as an officer, director or promoter · active 2021–2025 · Biotechnology
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| AmbAgon Therapeutics Inc. | — | Biotechnology | Series C | $55.4M | $35.9M | 2021 |
Josh Seidenfeld at the center, the companies they're named on, and every other operator named alongside them — an interlock map of shared founding teams, boards and funds. Name-matched, so treat as a research lead.
People named alongside Josh Seidenfeld on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Adam Rosenberg | 1 | 6 |
| Margarita Chavez | 1 | 4 |
| Janwillem Naesens | 1 | 3 |
| Peter Dudek | 1 | 2 |
| Roel Bulthuis | 1 | 1 |
| Christian Ottmann | 1 | 1 |
| Melissa McCracken | 1 | 1 |
| Nancy Pryer | 1 | 1 |
| Bryan Miller | 1 | 1 |
| Scott Clarke | 1 | 1 |
| Michelle Arkin | 1 | 1 |
| Lucas Brunsveld | 1 | 1 |
People are matched by normalized name across records; a common name may merge distinct individuals. Treat as a research lead, the same way modeled valuations are directional, not quoted.