---
title: "Fulcrum Therapeutics, Inc. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/df229cb1-062c-55a0-8db0-ee10d8298b76
json: https://whiteintel.dev/api/public/dossier/df229cb1-062c-55a0-8db0-ee10d8298b76
identifier: sec:0001680581
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# Fulcrum Therapeutics, Inc.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001680581`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/df229cb1-062c-55a0-8db0-ee10d8298b76  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/df229cb1-062c-55a0-8db0-ee10d8298b76  

## Ownership & control

### Owners / controllers

- **RA Capital Healthcare Fund LP** (tenpercentowner) — https://whiteintel.dev/entity/1ef87f50-8834-5b13-90e0-d0c89201e433
- **Shah Rajeev M.** (tenpercentowner) — https://whiteintel.dev/entity/fe8d7e01-c2f7-55ac-b8ce-308630592b3b
- **Kolchinsky Peter** (tenpercentowner) — https://whiteintel.dev/entity/33b3d577-9112-5c40-8586-a27dae0c41d4
- **RA CAPITAL MANAGEMENT, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/8d389c12-372a-5782-93b3-6f36e07414df
- **TRV GP III, LLC** (tenpercentowner) — https://whiteintel.dev/entity/8f7f96a0-1d9a-5e7c-a13c-6fcfd7b0b63f
- **THIRD ROCK VENTURES III, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/aa03f673-84b7-5185-9ceb-15ad7b6d715d
- **THIRD ROCK VENTURES GP III, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/b9effd43-5a98-5075-90d6-b09864f2bb9b
- **TEPPER ROBERT I** (tenpercentowner) — https://whiteintel.dev/entity/6735d721-9604-5a65-8546-0d89eed262a7
- **STARR KEVIN P** (tenpercentowner) — https://whiteintel.dev/entity/52504d9b-bfef-558c-bbe6-f0cc1c8a5391
- **LEVIN MARK J** (tenpercentowner) — https://whiteintel.dev/entity/149b7695-bfdb-5dfc-a061-ec8c3341e6b8
- **Casdin Eli** (tenpercentowner) — https://whiteintel.dev/entity/2cbca089-5a29-57d1-9dc4-6cb1f91719fd
- **MARIS WILLIAM J** (tenpercentowner) — https://whiteintel.dev/entity/bb7daef7-b4f0-512a-9a04-c16dbb788ad3
- **GLAXOSMITHKLINE PLC** (tenpercentowner) — https://whiteintel.dev/entity/c50c635a-a057-547c-90cd-d21ec818140c
- **GOULD ROBERT J** (tenpercentowner) — https://whiteintel.dev/entity/b11e4e99-82ad-56ef-b558-77e441111150
- **TRV GP IV, LLC** (tenpercentowner) — https://whiteintel.dev/entity/b18bd91a-0c29-5c20-a8b9-d4ff9a1d4659
- **Third Rock Ventures GP IV, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/ae1cd636-25fa-5142-afac-711be6ac7c3a
- **6 DIMENSIONS CAPITAL, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/31fa50db-9903-5f4f-a279-2c420125f9c2
- **Third Rock Ventures IV, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/77f5fefa-364a-598e-b4cd-7995a3f14e05
- **SECTION 32 FUND 2, LP** (tenpercentowner) — https://whiteintel.dev/entity/36726b81-5450-5467-b1b2-45bd3b2efde5
- **SECTION 32 GP 2, LLC** (tenpercentowner) — https://whiteintel.dev/entity/9c90a9ce-63a3-56f0-95d9-335ef28d5529
- **Casdin Capital, LLC** (tenpercentowner) — https://whiteintel.dev/entity/84fdcff0-d264-56a8-9db2-fc2b460a773a
- **Casdin Partners Master Fund, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/7a191bf6-61a2-5214-8c8c-bdf608cf80df
- **Casdin Partners GP, LLC** (tenpercentowner) — https://whiteintel.dev/entity/aad930ef-ceff-5ac7-b097-5ce5464d4342
- **SANOFI** (tenpercentowner) — https://whiteintel.dev/entity/5a1dda06-659f-5840-9a60-6cd4841e0c36

### UBO chain (walk to the ultimate owner)

A **57-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **Fulcrum Therapeutics, Inc.** — https://whiteintel.dev/entity/df229cb1-062c-55a0-8db0-ee10d8298b76 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Fulcrum Therapeutics, Inc.**. Human view: https://whiteintel.dev/entity/df229cb1-062c-55a0-8db0-ee10d8298b76 · Structured JSON: https://whiteintel.dev/api/public/dossier/df229cb1-062c-55a0-8db0-ee10d8298b76._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._