---
title: "GRAYZEL DAVID S. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9baca0f6-c517-5c13-9024-4d780db0f2d5
json: https://whiteintel.dev/api/public/dossier/9baca0f6-c517-5c13-9024-4d780db0f2d5
identifier: sec:0001732786
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# GRAYZEL DAVID S.

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001732786`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/9baca0f6-c517-5c13-9024-4d780db0f2d5  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9baca0f6-c517-5c13-9024-4d780db0f2d5  

## Ownership & control

### Holdings / subsidiaries

- **Q32 Bio Inc.** (director) — https://whiteintel.dev/entity/08894b83-faf4-53f2-980d-374ae48ff38a
- **Q32 Bio Inc.** (director) — https://whiteintel.dev/entity/08894b83-faf4-53f2-980d-374ae48ff38a
- **AEROVATE THERAPEUTICS, INC.** (director) — https://whiteintel.dev/entity/0498d804-2189-5885-b4d8-f0171a454d64
- **SURFACE ONCOLOGY, INC.** (director) — https://whiteintel.dev/entity/5dbea9e7-99ee-564a-8db1-1e330fa1db13

## 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 **GRAYZEL DAVID S.** — https://whiteintel.dev/entity/9baca0f6-c517-5c13-9024-4d780db0f2d5 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **GRAYZEL DAVID S.**. Human view: https://whiteintel.dev/entity/9baca0f6-c517-5c13-9024-4d780db0f2d5 · Structured JSON: https://whiteintel.dev/api/public/dossier/9baca0f6-c517-5c13-9024-4d780db0f2d5._

_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"._