---
title: "Mr Thomas Peterffy — Ownership Dossier"
canonical: https://whiteintel.dev/entity/d88a8d13-c1e8-40b3-beda-d6658b8a44fb
json: https://whiteintel.dev/api/public/dossier/d88a8d13-c1e8-40b3-beda-d6658b8a44fb
identifier: psc:k9Pvb3mvBHtgb7fXfHWMVCdkFdA
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Thomas Peterffy

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:k9Pvb3mvBHtgb7fXfHWMVCdkFdA`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/d88a8d13-c1e8-40b3-beda-d6658b8a44fb  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/d88a8d13-c1e8-40b3-beda-d6658b8a44fb  

## Ownership & control

### Holdings / subsidiaries

- **INTERACTIVE BROKERS (U.K.) LIMITED** (beneficial owner) — https://whiteintel.dev/entity/46d09d7b-079a-5230-9fd4-2ba50b1ce73d

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Thomas Peterffy**. Human view: https://whiteintel.dev/entity/d88a8d13-c1e8-40b3-beda-d6658b8a44fb · Structured JSON: https://whiteintel.dev/api/public/dossier/d88a8d13-c1e8-40b3-beda-d6658b8a44fb._

_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"._