---
title: "ONCOGENE SCIENCE INC — Ownership Dossier"
canonical: https://whiteintel.dev/entity/87a6cb55-6fc0-52bf-93b2-1ab6728f6eac
json: https://whiteintel.dev/api/public/dossier/87a6cb55-6fc0-52bf-93b2-1ab6728f6eac
identifier: sec:0000729922
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ONCOGENE SCIENCE INC

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0000729922`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/87a6cb55-6fc0-52bf-93b2-1ab6728f6eac  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/87a6cb55-6fc0-52bf-93b2-1ab6728f6eac  

## Ownership & control

### Owners / controllers

- **ASTELLAS US HOLDING, INC.** (tenpercentowner) — https://whiteintel.dev/entity/0f3b8227-e8de-5220-be6d-9ee30f477e75
- **RUBY ACQUSITION, INC.** (tenpercentowner) — https://whiteintel.dev/entity/519f1e8d-b806-5937-8094-c5c5b74805e7
- **ASTELLAS PHARMA INC.** (tenpercentowner) — https://whiteintel.dev/entity/8c1e6426-faf7-5587-b39f-8ad6931cbd8a

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

A **35-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 **ONCOGENE SCIENCE INC** — https://whiteintel.dev/entity/87a6cb55-6fc0-52bf-93b2-1ab6728f6eac · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ONCOGENE SCIENCE INC**. Human view: https://whiteintel.dev/entity/87a6cb55-6fc0-52bf-93b2-1ab6728f6eac · Structured JSON: https://whiteintel.dev/api/public/dossier/87a6cb55-6fc0-52bf-93b2-1ab6728f6eac._

_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"._