---
title: "Gritstone Bio, Inc. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/600a71e9-d6f0-516c-b2f1-bfe3bbbd7a95
json: https://whiteintel.dev/api/public/dossier/600a71e9-d6f0-516c-b2f1-bfe3bbbd7a95
identifier: oo:GB-COH-12631333
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Gritstone Bio, Inc.

**Type:** Company  
**Identifier:** `oo:GB-COH-12631333`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/600a71e9-d6f0-516c-b2f1-bfe3bbbd7a95  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/600a71e9-d6f0-516c-b2f1-bfe3bbbd7a95  

## Ownership & control

### Owners / controllers

- **Gritstone Bio, Inc.** (beneficial owner) — 100% — https://whiteintel.dev/entity/600a71e9-d6f0-516c-b2f1-bfe3bbbd7a95
- **Gritstone Bio, Inc.** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/f535d388-54ee-41d2-9bd6-1e549a4fff3f

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

A **2-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.

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12631333

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Gritstone Bio, Inc.**. Human view: https://whiteintel.dev/entity/600a71e9-d6f0-516c-b2f1-bfe3bbbd7a95 · Structured JSON: https://whiteintel.dev/api/public/dossier/600a71e9-d6f0-516c-b2f1-bfe3bbbd7a95._

_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"._