---
title: "CAMPBELL JOHN F — Ownership Dossier"
canonical: https://whiteintel.dev/entity/25fcd609-e3f4-546c-b700-965706ff0a75
json: https://whiteintel.dev/api/public/dossier/25fcd609-e3f4-546c-b700-965706ff0a75
identifier: sec:0001450073
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# CAMPBELL JOHN F

**Type:** Company  
**Jurisdiction:** US  
**Identifier:** `sec:0001450073`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/25fcd609-e3f4-546c-b700-965706ff0a75  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/25fcd609-e3f4-546c-b700-965706ff0a75  

## Ownership & control

### Holdings / subsidiaries

- **CAMBIUM LEARNING GROUP, INC.** (officer) — https://whiteintel.dev/entity/ef800425-6d8f-50a4-a26f-98a764b9ba76
- **CAMBIUM LEARNING GROUP, INC.** (director) — https://whiteintel.dev/entity/ef800425-6d8f-50a4-a26f-98a764b9ba76
- **BELL & HOWELL CO/** (officer) — https://whiteintel.dev/entity/a17e4878-eecf-5ba0-8a72-32a178d8f8e2

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **CAMPBELL JOHN F**. Human view: https://whiteintel.dev/entity/25fcd609-e3f4-546c-b700-965706ff0a75 · Structured JSON: https://whiteintel.dev/api/public/dossier/25fcd609-e3f4-546c-b700-965706ff0a75._

_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"._