---
title: "SMITH MARK CLAY — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f61a3271-5dfd-5a19-a117-9cbfbeb31883
json: https://whiteintel.dev/api/public/dossier/f61a3271-5dfd-5a19-a117-9cbfbeb31883
identifier: sec:0001431200
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SMITH MARK CLAY

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001431200`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/f61a3271-5dfd-5a19-a117-9cbfbeb31883  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f61a3271-5dfd-5a19-a117-9cbfbeb31883  

## Ownership & control

### Holdings / subsidiaries

- **ADTRAN Holdings, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/3710bd4a-1de6-58d3-b4e8-6bcb1828a8c3

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SMITH MARK CLAY**. Human view: https://whiteintel.dev/entity/f61a3271-5dfd-5a19-a117-9cbfbeb31883 · Structured JSON: https://whiteintel.dev/api/public/dossier/f61a3271-5dfd-5a19-a117-9cbfbeb31883._

_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"._