---
title: "SIEKMAN THOMAS C — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a03b72be-4e75-5ea5-8474-7065242ca58e
json: https://whiteintel.dev/api/public/dossier/a03b72be-4e75-5ea5-8474-7065242ca58e
identifier: sec:0001064054
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SIEKMAN THOMAS C

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001064054`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a03b72be-4e75-5ea5-8474-7065242ca58e  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a03b72be-4e75-5ea5-8474-7065242ca58e  

## Ownership & control

### Holdings / subsidiaries

- **MARTHA STEWART LIVING OMNIMEDIA INC** (director) — https://whiteintel.dev/entity/1f680269-3f54-5787-a395-85a8b662cfe8

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SIEKMAN THOMAS C**. Human view: https://whiteintel.dev/entity/a03b72be-4e75-5ea5-8474-7065242ca58e · Structured JSON: https://whiteintel.dev/api/public/dossier/a03b72be-4e75-5ea5-8474-7065242ca58e._

_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"._