---
title: "Hayden Michael R — Ownership Dossier"
canonical: https://whiteintel.dev/entity/962e81b5-494d-5db8-a012-4488c6c19c8a
json: https://whiteintel.dev/api/public/dossier/962e81b5-494d-5db8-a012-4488c6c19c8a
identifier: sec:0001352908
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Hayden Michael R

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001352908`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/962e81b5-494d-5db8-a012-4488c6c19c8a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/962e81b5-494d-5db8-a012-4488c6c19c8a  

## Ownership & control

### Holdings / subsidiaries

- **89bio, Inc.** (director) — https://whiteintel.dev/entity/fa1b6064-3e01-5af9-bd0a-e0ea21121ec3
- **AbCellera Biologics Inc.** (director) — https://whiteintel.dev/entity/cb89bf88-1616-5e58-b323-8fc5438e6e33
- **89bio, Inc.** (director) — https://whiteintel.dev/entity/fa1b6064-3e01-5af9-bd0a-e0ea21121ec3
- **IONIS PHARMACEUTICALS INC** (director) — https://whiteintel.dev/entity/ca01921d-7710-547a-8e44-4967bf23f7aa
- **Xenon Pharmaceuticals Inc.** (director) — https://whiteintel.dev/entity/3e20a2da-c4ad-5d3e-8c87-9dd6b2938172
- **Aurinia Pharmaceuticals Inc.** (director) — https://whiteintel.dev/entity/364af349-9e6d-5c2b-89df-b04cea30ff72

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Hayden Michael R**. Human view: https://whiteintel.dev/entity/962e81b5-494d-5db8-a012-4488c6c19c8a · Structured JSON: https://whiteintel.dev/api/public/dossier/962e81b5-494d-5db8-a012-4488c6c19c8a._

_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"._