---
title: "MAGNITE LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/56d6b939-3d9a-563b-bbb4-68129da2de7f
json: https://whiteintel.dev/api/public/dossier/56d6b939-3d9a-563b-bbb4-68129da2de7f
identifier: oo:GB-COH-06922381
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MAGNITE LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-06922381`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/56d6b939-3d9a-563b-bbb4-68129da2de7f  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/56d6b939-3d9a-563b-bbb4-68129da2de7f  

## Ownership & control

### Owners / controllers

- **GLENEX LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/35a6b11b-ffb8-5118-983e-16549f387cff
- **Magnite Inc.** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/cac8328a-508f-47d2-abdf-d7d08ab463a1

### UBO chain (walk to the ultimate owner)

A **4-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Company profile (live · UK Companies House)

- **Company number:** `06922381`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2009-06-02
- **Registered office:** 5 New Street Square, London, EC4A 3TW
- **SIC:** 73110

### Officers

- TAYLOR WESSING SECRETARIES LIMITED — corporate secretary · appointed 2009-06-02
- GEPHART, Brian Lee — director · American · appointed 2024-09-20
- NIX, Meaghan — director · British,American · appointed 2015-10-12
- PECHACEK, Natalie Hera — director · American · appointed 2013-05-14
- TAWIL, Elie Joseph — director · American · appointed 2024-09-20
- BURKE, Paul Simon — director · British · appointed 2009-06-02 · resigned 2009-06-03
- COPPLE, Brian — director · American · appointed 2015-04-07 · resigned 2018-06-28
- DAY, David Lavelle — director · American · appointed 2013-05-08 · resigned 2024-09-20
- FELDMAN, Jonathan — director · American · appointed 2018-09-01 · resigned 2020-06-12
- ROAH, Craig — director · American · appointed 2009-06-03 · resigned 2012-10-19
- SALTZ, Aaron Joseph — director · American · appointed 2020-06-12 · resigned 2024-09-20
- SZELISKI, Victoria Von — director · United States · appointed 2012-09-21 · resigned 2013-05-08
- WELCH, Seizo — director · Canadian · appointed 2012-11-01 · resigned 2013-05-08
- HUNTSMOOR LIMITED — corporate director · appointed 2009-06-02 · resigned 2009-06-03
- HUNTSMOOR NOMINEES LIMITED — corporate director · appointed 2009-06-02 · resigned 2009-06-03

### Beneficial owners (Persons with Significant Control)

- [Magnite Inc.](https://whiteintel.dev/entity/cac8328a-508f-47d2-abdf-d7d08ab463a1) — 75–100% shares · corporate PSC · United States — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/06922381
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/06922381

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **MAGNITE LIMITED** — https://whiteintel.dev/entity/56d6b939-3d9a-563b-bbb4-68129da2de7f · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MAGNITE LIMITED**. Human view: https://whiteintel.dev/entity/56d6b939-3d9a-563b-bbb4-68129da2de7f · Structured JSON: https://whiteintel.dev/api/public/dossier/56d6b939-3d9a-563b-bbb4-68129da2de7f._

_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"._