---
title: "Mr Thomas Peterffy — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a258ad18-9bef-516a-b389-5d53f4e415fb
json: https://whiteintel.dev/api/public/dossier/a258ad18-9bef-516a-b389-5d53f4e415fb
identifier: oo-person:GB-COH-PER-03958476-YHg45za3OlkjJyIlhx0BHfYx-DI
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Thomas Peterffy

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `oo-person:GB-COH-PER-03958476-YHg45za3OlkjJyIlhx0BHfYx-DI`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a258ad18-9bef-516a-b389-5d53f4e415fb  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a258ad18-9bef-516a-b389-5d53f4e415fb  

## Ownership & control

### Holdings / subsidiaries

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

## Provenance

- OpenOwnership — https://www.openownership.org

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Thomas Peterffy**. Human view: https://whiteintel.dev/entity/a258ad18-9bef-516a-b389-5d53f4e415fb · Structured JSON: https://whiteintel.dev/api/public/dossier/a258ad18-9bef-516a-b389-5d53f4e415fb._

_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"._