---
title: "Arcellx, Inc. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e625d136-debd-5008-ae56-bd94b2ad17ab
json: https://whiteintel.dev/api/public/dossier/e625d136-debd-5008-ae56-bd94b2ad17ab
identifier: sec:0001786205
jurisdiction: US
risk: High
source: WhiteIntel corporate-ownership graph
---

# Arcellx, Inc.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001786205`  
**Risk level:** High  
**Canonical dossier:** https://whiteintel.dev/entity/e625d136-debd-5008-ae56-bd94b2ad17ab  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e625d136-debd-5008-ae56-bd94b2ad17ab  

## Ownership & control

### Owners / controllers

- **GILEAD SCIENCES, INC.** (tenpercentowner) — https://whiteintel.dev/entity/601e55e5-ff7d-5603-a86e-1f1ee799a384
- **SR ONE CAPITAL FUND I AGGREGATOR LP** (tenpercentowner) — https://whiteintel.dev/entity/06bac624-1506-5422-bb3b-b419cafb6a61
- **SR ONE CO-INVEST II MANAGER, LLC** (tenpercentowner) — https://whiteintel.dev/entity/fd35ce65-5d88-5eed-8c55-8294fb24fc1e
- **GEORGE SIMEON** (tenpercentowner) — https://whiteintel.dev/entity/b21306e8-0f04-56c8-a50c-0d916bb5edb3
- **SR ONE CAPITAL MANAGEMENT, LLC** (tenpercentowner) — https://whiteintel.dev/entity/47aea971-764b-5926-9897-3e209cdc179b
- **SR ONE CO-INVEST II, LLC** (tenpercentowner) — https://whiteintel.dev/entity/a32a15e3-4208-5256-bf9f-e2b0d3617cb2
- **SR ONE CAPITAL PARTNERS I, LP** (tenpercentowner) — https://whiteintel.dev/entity/26817472-1125-581e-8d98-7434718e8735
- **Florence Anthony A. Jr.** (tenpercentowner) — https://whiteintel.dev/entity/94e349e2-421c-5582-b88d-da2fd26c7769
- **NEA Partners 15, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/4a2ab59e-2f27-504e-877f-013df4fd3189
- **SANDELL SCOTT D** (tenpercentowner) — https://whiteintel.dev/entity/f5d27853-015c-5d89-b453-67c52f1385ee
- **NEA 15 GP, LLC** (tenpercentowner) — https://whiteintel.dev/entity/f7ff8bd6-e86f-5180-a514-c0935c7615ba
- **Makhzoumi Mohamad** (tenpercentowner) — https://whiteintel.dev/entity/3f19d276-e986-51da-a1b9-2b6a3a28ec35
- **SONSINI PETER W.** (tenpercentowner) — https://whiteintel.dev/entity/497a01a0-d587-5cb5-9ace-d357d91f6f59
- **BASKETT FOREST** (tenpercentowner) — https://whiteintel.dev/entity/82f90b88-c233-5f52-bc76-4342aaeed466
- **New Enterprise Associates 15, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/53c0770f-be8c-5b6a-967f-c7b6e3d16a32
- **NOVO A/S** (tenpercentowner) — https://whiteintel.dev/entity/e9d14cc2-a638-56cb-8a4e-6ff4ebd492b1

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

A **126-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.

## 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 **Arcellx, Inc.** — https://whiteintel.dev/entity/e625d136-debd-5008-ae56-bd94b2ad17ab · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Arcellx, Inc.**. Human view: https://whiteintel.dev/entity/e625d136-debd-5008-ae56-bd94b2ad17ab · Structured JSON: https://whiteintel.dev/api/public/dossier/e625d136-debd-5008-ae56-bd94b2ad17ab._

_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"._