---
title: "Topper James N — Ownership Dossier"
canonical: https://whiteintel.dev/entity/849d011c-8ad7-5b5a-a99e-cfbdbf1b1e09
json: https://whiteintel.dev/api/public/dossier/849d011c-8ad7-5b5a-a99e-cfbdbf1b1e09
identifier: sec:0001341382
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Topper James N

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001341382`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/849d011c-8ad7-5b5a-a99e-cfbdbf1b1e09  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/849d011c-8ad7-5b5a-a99e-cfbdbf1b1e09  

## Ownership & control

### Holdings / subsidiaries

- **NewAmsterdam Pharma Co N.V.** (director) — https://whiteintel.dev/entity/b84f20c3-94a6-5ee9-b4d5-4b4c1cf8221d
- **NewAmsterdam Pharma Co N.V.** (director) — https://whiteintel.dev/entity/b84f20c3-94a6-5ee9-b4d5-4b4c1cf8221d
- **LA JOLLA PHARMACEUTICAL CO** (director) — https://whiteintel.dev/entity/b339856c-1f38-5060-94ab-0935b5a0714d
- **Phathom Pharmaceuticals, Inc.** (director) — https://whiteintel.dev/entity/cbb82017-9c1f-5994-8e39-29b55f1cf052
- **Phathom Pharmaceuticals, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/cbb82017-9c1f-5994-8e39-29b55f1cf052
- **NewAmsterdam Pharma Co N.V.** (director) — https://whiteintel.dev/entity/b84f20c3-94a6-5ee9-b4d5-4b4c1cf8221d
- **MBX Biosciences, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/6af50270-7dd4-5262-8756-e6fc9afb96e3
- **HilleVax, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/440f48e0-0591-5c4e-ad01-b130a9de9705
- **ALPINE IMMUNE SCIENCES, INC.** (director) — https://whiteintel.dev/entity/ad945a36-f186-59fa-b801-2b39506284f6
- **Arcutis Biotherapeutics, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/cf95a72d-8eff-55cc-9b2b-39fe428b36de
- **ANAPTYSBIO, INC** (director) — https://whiteintel.dev/entity/d5e7f599-7eb4-5864-8e4a-7194dc20c2de
- **ANAPTYSBIO, INC** (tenpercentowner) — https://whiteintel.dev/entity/d5e7f599-7eb4-5864-8e4a-7194dc20c2de

…and **19** more subsidiaries/holdings. Resolve the full list with `get_dossier` on the WhiteIntel MCP (`npx -y @whiteintel/mcp-server`) 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 **Topper James N** — https://whiteintel.dev/entity/849d011c-8ad7-5b5a-a99e-cfbdbf1b1e09 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Topper James N**. Human view: https://whiteintel.dev/entity/849d011c-8ad7-5b5a-a99e-cfbdbf1b1e09 · Structured JSON: https://whiteintel.dev/api/public/dossier/849d011c-8ad7-5b5a-a99e-cfbdbf1b1e09._

_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"._