---
title: "Cianciulli Michael R. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9fe7a6ef-1678-5e98-89ee-e79a87ab13e0
json: https://whiteintel.dev/api/public/dossier/9fe7a6ef-1678-5e98-89ee-e79a87ab13e0
identifier: sec:0002007722
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Cianciulli Michael R.

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0002007722`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/9fe7a6ef-1678-5e98-89ee-e79a87ab13e0  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9fe7a6ef-1678-5e98-89ee-e79a87ab13e0  

## Ownership & control

### Holdings / subsidiaries

- **MARKETAXESS HOLDINGS INC** (officer) — https://whiteintel.dev/entity/cf5476e6-7e0f-51de-9545-b9a37df80887
- **MARKETAXESS HOLDINGS INC** (officer) — https://whiteintel.dev/entity/cf5476e6-7e0f-51de-9545-b9a37df80887
- **MARKETAXESS HOLDINGS INC** (officer) — https://whiteintel.dev/entity/cf5476e6-7e0f-51de-9545-b9a37df80887

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Cianciulli Michael R.**. Human view: https://whiteintel.dev/entity/9fe7a6ef-1678-5e98-89ee-e79a87ab13e0 · Structured JSON: https://whiteintel.dev/api/public/dossier/9fe7a6ef-1678-5e98-89ee-e79a87ab13e0._

_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"._