---
title: "QUAYSTONE PROPERTIES S.A. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/1fede1d2-2ca7-584c-9be5-eb4376c01b29
json: https://whiteintel.dev/api/public/dossier/1fede1d2-2ca7-584c-9be5-eb4376c01b29
identifier: icij:icijol-10054054
jurisdiction: CA
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# QUAYSTONE PROPERTIES S.A.

**Type:** Company  
**Jurisdiction:** CA  
**Identifier:** `icij:icijol-10054054`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/1fede1d2-2ca7-584c-9be5-eb4376c01b29  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/1fede1d2-2ca7-584c-9be5-eb4376c01b29  

## Ownership & control

### Owners / controllers

- **REGINALD GREENSLADE** (shareholder of) — https://whiteintel.dev/entity/966a0ea9-3f30-5997-aa9d-dc4177a95f6f
- **MICHAEL J. STARK** (shareholder of) — https://whiteintel.dev/entity/c107a539-b2e6-517b-9176-894049556cdb
- **REGINALD J. GREENSLADE** (shareholder of) — https://whiteintel.dev/entity/c40c6e85-6e1e-51fa-8daf-e732e8526275
- **MICHAEL STARK** (shareholder of) — https://whiteintel.dev/entity/e612fc09-db10-5cce-b164-6f65a8929c3a
- **GRANT GREENSLADE** (shareholder of) — https://whiteintel.dev/entity/b0fe8d8c-12bb-5a25-a165-90c2ae613811
- **RICHARD MCHARDY** (shareholder of) — https://whiteintel.dev/entity/46e83f2d-2c7f-5d69-a477-9d8070077a74
- **TREVOR SPAGRUD** (shareholder of) — https://whiteintel.dev/entity/ad97cd80-f320-5434-a62f-fc2fb437a10a

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

A **7-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.

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/10054054

## 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 **QUAYSTONE PROPERTIES S.A.** — https://whiteintel.dev/entity/1fede1d2-2ca7-584c-9be5-eb4376c01b29 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **QUAYSTONE PROPERTIES S.A.**. Human view: https://whiteintel.dev/entity/1fede1d2-2ca7-584c-9be5-eb4376c01b29 · Structured JSON: https://whiteintel.dev/api/public/dossier/1fede1d2-2ca7-584c-9be5-eb4376c01b29._

_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"._