---
title: "Williamson Robert F III — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a36ef272-809e-598b-a31d-e057df4b5761
json: https://whiteintel.dev/api/public/dossier/a36ef272-809e-598b-a31d-e057df4b5761
identifier: sec:0001397331
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Williamson Robert F III

**Type:** Person  
**Jurisdiction:** US  
**Identifier:** `sec:0001397331`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a36ef272-809e-598b-a31d-e057df4b5761  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a36ef272-809e-598b-a31d-e057df4b5761  

## Ownership & control

### Holdings / subsidiaries

- **Perspective Therapeutics, Inc.** (director) — https://whiteintel.dev/entity/3808c498-4024-5be1-a4ea-2839f0f84de6
- **Perspective Therapeutics, Inc.** (director) — https://whiteintel.dev/entity/3808c498-4024-5be1-a4ea-2839f0f84de6
- **PHARMASSET INC** (director) — https://whiteintel.dev/entity/92cb38df-5935-50f1-96ff-92378029c8fd

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Williamson Robert F III**. Human view: https://whiteintel.dev/entity/a36ef272-809e-598b-a31d-e057df4b5761 · Structured JSON: https://whiteintel.dev/api/public/dossier/a36ef272-809e-598b-a31d-e057df4b5761._

_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"._