---
title: "Generation Bio Co. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/874fc8b2-e483-5bec-9fe2-0b7ed80f10ce
json: https://whiteintel.dev/api/public/dossier/874fc8b2-e483-5bec-9fe2-0b7ed80f10ce
identifier: sec:0001733294
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# Generation Bio Co.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001733294`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/874fc8b2-e483-5bec-9fe2-0b7ed80f10ce  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/874fc8b2-e483-5bec-9fe2-0b7ed80f10ce  

## Ownership & control

### Owners / controllers

- **ATLAS VENTURE ASSOCIATES X, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/76e91b3a-e1e9-5b7e-b4b1-40c82339bb6c
- **ATLAS VENTURE ASSOCIATES OPPORTUNITY I, LLC** (tenpercentowner) — https://whiteintel.dev/entity/b71c0123-cd14-5fd9-83ed-cb8e36d6e755
- **ATLAS VENTURE ASSOCIATES OPPORTUNITY I, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/cfc745a7-8e02-5180-b8b7-b050f1fb6e4a
- **ATLAS VENTURE FUND X, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/927a9cb3-167c-5117-a1e0-421861f5847f
- **ATLAS VENTURE ASSOCIATES X, LLC** (tenpercentowner) — https://whiteintel.dev/entity/8c52dd12-23cf-5c4f-9373-bbf9f263fafb
- **ATLAS VENTURE OPPORTUNITY FUND I, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/d337efa4-1263-57b9-96f9-8493d75489c9
- **MCDONOUGH GEOFF** (tenpercentowner) — https://whiteintel.dev/entity/07b5de8a-e089-5525-a211-ba0d296d4a30
- **ARTAL GROUP S A** (tenpercentowner) — https://whiteintel.dev/entity/429551d0-bfcf-5028-8acf-486c5edf781d
- **FISCH MICHAEL B.** (tenpercentownerother) — https://whiteintel.dev/entity/8ae53e1c-22e4-5c34-8156-1b9a7e4e3fc3
- **STICHTING ADMINISTRATIEKANTOOR WESTEND** (tenpercentowner) — https://whiteintel.dev/entity/e9a13328-8a9b-506a-a6f6-4fa56741402b
- **DEERFIELD CAPITAL LP** (tenpercentownerother) — https://whiteintel.dev/entity/5f3c11a7-c53a-58c1-ba4f-1ad86e04c791
- **Flynn James E** (tenpercentownerother) — https://whiteintel.dev/entity/e41579a6-248b-5454-a089-66f9a7c69ae7
- **FARALLON PARTNERS L L C/CA** (tenpercentownerother) — https://whiteintel.dev/entity/f721d0dd-f965-5cfe-a1a8-0e267747222f
- **ROBERTS THOMAS G. JR.** (tenpercentownerother) — https://whiteintel.dev/entity/9500072a-44f9-5132-ba81-487eaf9c853c
- **DREYFUSS PHILIP D** (tenpercentownerother) — https://whiteintel.dev/entity/762fd7dd-481b-53fb-ae95-225cd480c95a
- **ZONE HEALTHCARE HOLDINGS, LLC** (tenpercentownerother) — https://whiteintel.dev/entity/fefcbfdd-028e-5a6c-8840-afe6f831566a
- **SPOKES ANDREW J M** (tenpercentownerother) — https://whiteintel.dev/entity/264d05ff-9427-5fa6-9dfa-e208904c9e1f
- **FARALLON CAPITAL MANAGEMENT LLC** (tenpercentownerother) — https://whiteintel.dev/entity/a494105a-e341-52e0-b3fe-932e2aca0cf2
- **DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)** (tenpercentownerother) — https://whiteintel.dev/entity/31a5caa4-05d6-5739-b04b-16a6222da289
- **WESTEND S.A.** (tenpercentowner) — https://whiteintel.dev/entity/5d6fff18-d0f6-5c08-b890-6f700a43c5fb
- **PATEL RAJIV A** (tenpercentownerother) — https://whiteintel.dev/entity/83090fcd-a202-52b7-a14b-92fb44b12b51
- **MINNE PASCAL** (tenpercentowner) — https://whiteintel.dev/entity/c7240c98-471f-5426-88c6-b7eff6c18fa0
- **LINN MICHAEL G** (tenpercentownerother) — https://whiteintel.dev/entity/eff8f7b0-b16a-5b99-9a15-7746a83e3d5e
- **ARTAL TREASURY LTD** (tenpercentowner) — https://whiteintel.dev/entity/68a5de9c-0069-5235-b6c5-6a0ce3023d62
- **WEHRLY MARK C** (tenpercentownerother) — https://whiteintel.dev/entity/7766b61f-0a7f-5a6d-aac8-b94397ff7708
- **DEERFIELD PARTNERS, L.P.** (tenpercentownerother) — https://whiteintel.dev/entity/65f05e41-ef95-517f-9b59-b6fc681aa121
- **WELLINGTON BIOMEDICAL INNOVATION MASTER INVESTORS (CAYMAN) I L.P.** (tenpercentowner) — https://whiteintel.dev/entity/48c8939e-22df-5a97-bb4f-a607fc5daf8b
- **Casdin Capital, LLC** (tenpercentowner) — https://whiteintel.dev/entity/84fdcff0-d264-56a8-9db2-fc2b460a773a
- **WARREN JOHN R.** (tenpercentownerother) — https://whiteintel.dev/entity/5ce2abfa-0ea8-50f8-b8b6-7da11489e8ba
- **KIM DAVID T** (tenpercentownerother) — https://whiteintel.dev/entity/1fc64bf7-98a1-5dd8-9712-e6cfd2fc1400
- **INVUS PUBLIC EQUITIES ADVISORS, LLC** (tenpercentowner) — https://whiteintel.dev/entity/bcf3511e-89d6-510e-9852-3494ba3b93ca
- **ARTAL INTERNATIONAL S.C.A.** (tenpercentowner) — https://whiteintel.dev/entity/cb48f859-4422-5cf6-bb6a-caf70fc9acce
- **SEYBOLD WILLIAM** (tenpercentownerother) — https://whiteintel.dev/entity/53db617e-626f-5ae6-a7a0-27736037b7a5
- **ARTAL INTERNATIONAL MANAGEMENT S.A.** (tenpercentowner) — https://whiteintel.dev/entity/9795249b-5db6-5917-b628-02de9e197a5d
- **Casdin Eli** (tenpercentowner) — https://whiteintel.dev/entity/2cbca089-5a29-57d1-9dc4-6cb1f91719fd
- **FRIED RICHARD B** (tenpercentownerother) — https://whiteintel.dev/entity/0efbc8b8-bf27-5783-a701-deed1f1ff265
- **INVUS PUBLIC EQUITIES, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/85fbd0cb-c552-57e9-8c20-432be1aaf6f3

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

A **72-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 **Generation Bio Co.** — https://whiteintel.dev/entity/874fc8b2-e483-5bec-9fe2-0b7ed80f10ce · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Generation Bio Co.**. Human view: https://whiteintel.dev/entity/874fc8b2-e483-5bec-9fe2-0b7ed80f10ce · Structured JSON: https://whiteintel.dev/api/public/dossier/874fc8b2-e483-5bec-9fe2-0b7ed80f10ce._

_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"._