---
title: "APPELBAUM BRUCE S — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e4e04fa1-da50-51ea-be2d-045fadc4e1c2
json: https://whiteintel.dev/api/public/dossier/e4e04fa1-da50-51ea-be2d-045fadc4e1c2
identifier: sec:0001258571
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# APPELBAUM BRUCE S

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001258571`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e4e04fa1-da50-51ea-be2d-045fadc4e1c2  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e4e04fa1-da50-51ea-be2d-045fadc4e1c2  

## Ownership & control

### Holdings / subsidiaries

- **INPUT OUTPUT INC** (director) — https://whiteintel.dev/entity/034aa2f8-fb68-5200-a5ae-3489bd83558f

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **APPELBAUM BRUCE S**. Human view: https://whiteintel.dev/entity/e4e04fa1-da50-51ea-be2d-045fadc4e1c2 · Structured JSON: https://whiteintel.dev/api/public/dossier/e4e04fa1-da50-51ea-be2d-045fadc4e1c2._

_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"._