---
title: "Knowlden - Ethan K — Ownership Dossier"
canonical: https://whiteintel.dev/entity/58ea66eb-e4c2-5092-a7ff-58f1c3eaf564
json: https://whiteintel.dev/api/public/dossier/58ea66eb-e4c2-5092-a7ff-58f1c3eaf564
identifier: icij:icijol-80087542
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# Knowlden - Ethan K

**Type:** Organization  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `icij:icijol-80087542`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/58ea66eb-e4c2-5092-a7ff-58f1c3eaf564  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/58ea66eb-e4c2-5092-a7ff-58f1c3eaf564  

## Ownership & control

### Holdings / subsidiaries

- **Novartis B3 Ltd.** (director of) — https://whiteintel.dev/entity/463441e3-466e-5ab0-9d78-230527705169
- **Novartis B3 Ltd.** (president of) — https://whiteintel.dev/entity/463441e3-466e-5ab0-9d78-230527705169
- **CBT Bermuda Holdings Ltd.** (director of) — https://whiteintel.dev/entity/febfb69e-f9cb-55f5-a122-a8071f790052
- **CBT Bermuda Holdings Ltd.** (president of) — https://whiteintel.dev/entity/febfb69e-f9cb-55f5-a122-a8071f790052

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/80087542

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Knowlden - Ethan K**. Human view: https://whiteintel.dev/entity/58ea66eb-e4c2-5092-a7ff-58f1c3eaf564 · Structured JSON: https://whiteintel.dev/api/public/dossier/58ea66eb-e4c2-5092-a7ff-58f1c3eaf564._

_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"._