---
title: "SEPHTON BRIAN T — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9f6ae6fe-cc2d-5920-8df3-fee68c8aa5ec
json: https://whiteintel.dev/api/public/dossier/9f6ae6fe-cc2d-5920-8df3-fee68c8aa5ec
identifier: sec:0001318351
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SEPHTON BRIAN T

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001318351`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/9f6ae6fe-cc2d-5920-8df3-fee68c8aa5ec  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9f6ae6fe-cc2d-5920-8df3-fee68c8aa5ec  

## Ownership & control

### Holdings / subsidiaries

- **StoneX Group Inc.** (officer) — https://whiteintel.dev/entity/3036cdd8-7ce5-5ba1-a3bd-be9a3333a71f

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SEPHTON BRIAN T**. Human view: https://whiteintel.dev/entity/9f6ae6fe-cc2d-5920-8df3-fee68c8aa5ec · Structured JSON: https://whiteintel.dev/api/public/dossier/9f6ae6fe-cc2d-5920-8df3-fee68c8aa5ec._

_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"._