---
title: "COMBIMATRIX CORP — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9842f994-bdeb-5372-8e1b-b130dda0fb57
json: https://whiteintel.dev/api/public/dossier/9842f994-bdeb-5372-8e1b-b130dda0fb57
identifier: sec:0001383183
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# COMBIMATRIX CORP

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001383183`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/9842f994-bdeb-5372-8e1b-b130dda0fb57  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9842f994-bdeb-5372-8e1b-b130dda0fb57  

## Ownership & control

### Owners / controllers

- **HAMILTON EDWARD ARTHUR** (tenpercentowner) — https://whiteintel.dev/entity/34d51278-9c2b-5d60-947a-6bebd8e70640
- **FELSENTHAL MARTIN R** (tenpercentowner) — https://whiteintel.dev/entity/6795d8d1-1c8e-5e23-b0b2-0e5f79fbb8e4
- **RAY RUSSELL T** (tenpercentowner) — https://whiteintel.dev/entity/ab110ef2-a92b-51ae-919b-470b3e508bbb
- **GRUA PETER J** (tenpercentowner) — https://whiteintel.dev/entity/f925e45a-a8ac-552f-bbca-a9e66537795d
- **HLM VENTURE PARTNERS III, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/75673efe-070b-5512-994f-4bd7f433c928
- **CAHILL EDWARD L** (tenpercentowner) — https://whiteintel.dev/entity/f5a5c961-f06a-57ef-8fc6-b193ac9f6991
- **HLM VENTURE ASSOCIATES III, LLC** (tenpercentowner) — https://whiteintel.dev/entity/60720a2f-6ba7-5cc3-a86b-ec8fccd559d1
- **MARXE AUSTIN W & GREENHOUSE DAVID M** (tenpercentowner) — https://whiteintel.dev/entity/9ac6eb0c-0d33-5e17-9d9e-aa6c1990fcfd

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

A **38-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 **COMBIMATRIX CORP** — https://whiteintel.dev/entity/9842f994-bdeb-5372-8e1b-b130dda0fb57 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **COMBIMATRIX CORP**. Human view: https://whiteintel.dev/entity/9842f994-bdeb-5372-8e1b-b130dda0fb57 · Structured JSON: https://whiteintel.dev/api/public/dossier/9842f994-bdeb-5372-8e1b-b130dda0fb57._

_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"._