---
title: "MCWILLIAMS REX A — Ownership Dossier"
canonical: https://whiteintel.dev/entity/2f44fd5f-39d9-57af-b180-e93262bbe3ad
json: https://whiteintel.dev/api/public/dossier/2f44fd5f-39d9-57af-b180-e93262bbe3ad
identifier: sec:0001251732
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MCWILLIAMS REX A

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001251732`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/2f44fd5f-39d9-57af-b180-e93262bbe3ad  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/2f44fd5f-39d9-57af-b180-e93262bbe3ad  

## Ownership & control

### Holdings / subsidiaries

- **ULTICOM INC** (director) — https://whiteintel.dev/entity/14326858-e548-5d53-bd88-86d1a21c91ed

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MCWILLIAMS REX A**. Human view: https://whiteintel.dev/entity/2f44fd5f-39d9-57af-b180-e93262bbe3ad · Structured JSON: https://whiteintel.dev/api/public/dossier/2f44fd5f-39d9-57af-b180-e93262bbe3ad._

_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"._