---
title: "FERKO WILLIAM G — Ownership Dossier"
canonical: https://whiteintel.dev/entity/65eecaec-44b2-5fa4-aab7-d413607db6cc
json: https://whiteintel.dev/api/public/dossier/65eecaec-44b2-5fa4-aab7-d413607db6cc
identifier: sec:0001192422
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# FERKO WILLIAM G

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001192422`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/65eecaec-44b2-5fa4-aab7-d413607db6cc  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/65eecaec-44b2-5fa4-aab7-d413607db6cc  

## Ownership & control

### Holdings / subsidiaries

- **GROUP TECHNOLOGIES CORP** (director) — https://whiteintel.dev/entity/b786672f-63e6-545a-b497-1f2ae8e2658d
- **GENLYTE GROUP INC** (officer) — https://whiteintel.dev/entity/b3a48c47-f2bb-5fa3-9a68-88f65115d14d

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **FERKO WILLIAM G**. Human view: https://whiteintel.dev/entity/65eecaec-44b2-5fa4-aab7-d413607db6cc · Structured JSON: https://whiteintel.dev/api/public/dossier/65eecaec-44b2-5fa4-aab7-d413607db6cc._

_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"._