---
title: "COSTA WILLIAM T JR — Ownership Dossier"
canonical: https://whiteintel.dev/entity/3d7e072d-a209-5f32-bde8-0aefe05c5c8a
json: https://whiteintel.dev/api/public/dossier/3d7e072d-a209-5f32-bde8-0aefe05c5c8a
identifier: sec:0001222953
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# COSTA WILLIAM T JR

**Type:** Company  
**Jurisdiction:** US  
**Identifier:** `sec:0001222953`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/3d7e072d-a209-5f32-bde8-0aefe05c5c8a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/3d7e072d-a209-5f32-bde8-0aefe05c5c8a  

## Ownership & control

### Holdings / subsidiaries

- **UNION BANKSHARES INC** (director) — https://whiteintel.dev/entity/9a84cc2c-b3ea-5721-8821-76dfa07ad496

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **COSTA WILLIAM T JR**. Human view: https://whiteintel.dev/entity/3d7e072d-a209-5f32-bde8-0aefe05c5c8a · Structured JSON: https://whiteintel.dev/api/public/dossier/3d7e072d-a209-5f32-bde8-0aefe05c5c8a._

_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"._