---
title: "Third Harmonic Bio, Inc. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e1b6fe48-1324-5dbb-bd90-38bb4c119af2
json: https://whiteintel.dev/api/public/dossier/e1b6fe48-1324-5dbb-bd90-38bb4c119af2
identifier: sec:0001923840
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# Third Harmonic Bio, Inc.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001923840`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/e1b6fe48-1324-5dbb-bd90-38bb4c119af2  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e1b6fe48-1324-5dbb-bd90-38bb4c119af2  

## Ownership & control

### Owners / controllers

- **GLADSTONE MICHAEL** (tenpercentowner) — https://whiteintel.dev/entity/e06d722a-b994-5e19-afb5-496c47f1386f
- **Atlas Venture Fund XI, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/0d160e3e-733f-5ed2-9cf6-d2f6fa110037
- **BONITA DAVID P** (tenpercentowner) — https://whiteintel.dev/entity/ae5918ab-8110-5975-b366-fbaf0de4dbad
- **BVF PARTNERS L P/IL** (tenpercentowner) — https://whiteintel.dev/entity/2d1fe4be-fda1-5949-a4dc-2db0872357b2
- **BVF INC/IL** (tenpercentowner) — https://whiteintel.dev/entity/c3788db9-7dee-589d-a6de-f535d1b919df
- **LAMPERT MARK N** (tenpercentowner) — https://whiteintel.dev/entity/88b59549-d5c2-569d-a163-bc9f5aadeb62
- **Atlas Venture Associates XI, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/4565f9d1-8e59-5ad4-886b-4dfc4f63433e
- **ORBIMED ADVISORS LLC** (tenpercentowner) — https://whiteintel.dev/entity/4fe8d3ec-3487-5b04-877d-c8ddaf0718be
- **Atlas Venture Associates XI, LLC** (tenpercentowner) — https://whiteintel.dev/entity/8a09056a-29bd-5202-b79f-30dd1c1582c8
- **ATLAS VENTURE ASSOCIATES OPPORTUNITY I, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/cfc745a7-8e02-5180-b8b7-b050f1fb6e4a
- **OrbiMed Capital GP VII LLC** (tenpercentowner) — https://whiteintel.dev/entity/9eda48eb-e9bf-52a5-8464-61da1d263b5d
- **ATLAS VENTURE ASSOCIATES OPPORTUNITY I, LLC** (tenpercentowner) — https://whiteintel.dev/entity/b71c0123-cd14-5fd9-83ed-cb8e36d6e755
- **ATLAS VENTURE OPPORTUNITY FUND I, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/d337efa4-1263-57b9-96f9-8493d75489c9

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

A **51-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 **Third Harmonic Bio, Inc.** — https://whiteintel.dev/entity/e1b6fe48-1324-5dbb-bd90-38bb4c119af2 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Third Harmonic Bio, Inc.**. Human view: https://whiteintel.dev/entity/e1b6fe48-1324-5dbb-bd90-38bb4c119af2 · Structured JSON: https://whiteintel.dev/api/public/dossier/e1b6fe48-1324-5dbb-bd90-38bb4c119af2._

_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"._