---
title: "COSTELLO WILLIAM — Ownership Dossier"
canonical: https://whiteintel.dev/entity/5c3d9c12-b23c-5f1e-baa5-e4e4a853cb48
json: https://whiteintel.dev/api/public/dossier/5c3d9c12-b23c-5f1e-baa5-e4e4a853cb48
identifier: sec:0001442086
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# COSTELLO WILLIAM

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001442086`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/5c3d9c12-b23c-5f1e-baa5-e4e4a853cb48  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/5c3d9c12-b23c-5f1e-baa5-e4e4a853cb48  

## Ownership & control

### Holdings / subsidiaries

- **HSN, INC.** (director) — https://whiteintel.dev/entity/ce386cc6-22f7-57b9-8393-6c8c7dddcc4f

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **COSTELLO WILLIAM**. Human view: https://whiteintel.dev/entity/5c3d9c12-b23c-5f1e-baa5-e4e4a853cb48 · Structured JSON: https://whiteintel.dev/api/public/dossier/5c3d9c12-b23c-5f1e-baa5-e4e4a853cb48._

_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"._