---
title: "GUPP WILLIAM R. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/bc92f513-71b1-5976-8bb5-4e9af8f524ea
json: https://whiteintel.dev/api/public/dossier/bc92f513-71b1-5976-8bb5-4e9af8f524ea
identifier: sec:0001428106
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# GUPP WILLIAM R.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001428106`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/bc92f513-71b1-5976-8bb5-4e9af8f524ea  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bc92f513-71b1-5976-8bb5-4e9af8f524ea  

## Ownership & control

### Holdings / subsidiaries

- **TREX CO INC** (officer) — https://whiteintel.dev/entity/75850e43-d6a0-59ab-ad6f-7853cb993733

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **GUPP WILLIAM R.**. Human view: https://whiteintel.dev/entity/bc92f513-71b1-5976-8bb5-4e9af8f524ea · Structured JSON: https://whiteintel.dev/api/public/dossier/bc92f513-71b1-5976-8bb5-4e9af8f524ea._

_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"._