---
title: "ARCH Venture Partners X, LLC — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ab40fd36-95c2-5452-94c9-e0d287852bf9
json: https://whiteintel.dev/api/public/dossier/ab40fd36-95c2-5452-94c9-e0d287852bf9
identifier: sec:0001769012
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ARCH Venture Partners X, LLC

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001769012`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ab40fd36-95c2-5452-94c9-e0d287852bf9  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ab40fd36-95c2-5452-94c9-e0d287852bf9  

## Ownership & control

### Holdings / subsidiaries

- **Maze Therapeutics, Inc.** (10% owner) — https://whiteintel.dev/entity/dd91eb35-a8ad-5def-97d9-315d460750d5
- **Neumora Therapeutics, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/1215113d-0999-5daf-9908-343ef157702c
- **Prime Medicine, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/88ba017d-558f-5834-9839-6564794aca6f
- **Maze Therapeutics, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/dd91eb35-a8ad-5def-97d9-315d460750d5
- **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
- **Erasca, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/d281b757-aea6-58d9-9809-bfb54258843f
- **Verve Therapeutics, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/fbb9c528-b331-50f5-bf1d-aea89540ca82
- **SIENNA BIOPHARMACEUTICALS, INC.** (tenpercentowner) — https://whiteintel.dev/entity/2cc09a09-3a86-57e9-9b4f-48050eddee2d

## 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 **ARCH Venture Partners X, LLC** — https://whiteintel.dev/entity/ab40fd36-95c2-5452-94c9-e0d287852bf9 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ARCH Venture Partners X, LLC**. Human view: https://whiteintel.dev/entity/ab40fd36-95c2-5452-94c9-e0d287852bf9 · Structured JSON: https://whiteintel.dev/api/public/dossier/ab40fd36-95c2-5452-94c9-e0d287852bf9._

_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"._