---
title: "ARCH VENTURE FUND IX OVERAGE, L.P. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/d02f94dd-c17d-535f-babe-a6a7aad75fc3
json: https://whiteintel.dev/api/public/dossier/d02f94dd-c17d-535f-babe-a6a7aad75fc3
identifier: sec:0001666307
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ARCH VENTURE FUND IX OVERAGE, L.P.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001666307`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/d02f94dd-c17d-535f-babe-a6a7aad75fc3  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/d02f94dd-c17d-535f-babe-a6a7aad75fc3  

## Ownership & control

### Holdings / subsidiaries

- **Lyell Immunopharma, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/eeb1283f-805a-5e39-98c5-0756afaf7715
- **Boundless Bio, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/adcd4b25-680c-5d72-8d95-904e59ace4a0
- **Sana Biotechnology, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/557a9b60-c734-5950-9810-1f56a04a1abc
- **Vir Biotechnology, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/ca406276-b865-57f4-af53-1e507124bc69
- **Beam Therapeutics Inc.** (tenpercentowner) — https://whiteintel.dev/entity/e845a03d-98a7-5a80-ae68-0b21e57416c6
- **KARUNA THERAPEUTICS, INC.** (tenpercentowner) — https://whiteintel.dev/entity/a3e824b0-d1f9-5b2d-ba1c-027263eab809
- **Gossamer Bio, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/45165ff1-e9ef-54db-9310-fc551faeb3b0

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ARCH VENTURE FUND IX OVERAGE, L.P.**. Human view: https://whiteintel.dev/entity/d02f94dd-c17d-535f-babe-a6a7aad75fc3 · Structured JSON: https://whiteintel.dev/api/public/dossier/d02f94dd-c17d-535f-babe-a6a7aad75fc3._

_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"._