---
title: "SEMMELMAYER STEVEN J — Ownership Dossier"
canonical: https://whiteintel.dev/entity/776a4dbe-28fd-53a1-9ac4-e26d09416f42
json: https://whiteintel.dev/api/public/dossier/776a4dbe-28fd-53a1-9ac4-e26d09416f42
identifier: sec:0001204148
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SEMMELMAYER STEVEN J

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001204148`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/776a4dbe-28fd-53a1-9ac4-e26d09416f42  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/776a4dbe-28fd-53a1-9ac4-e26d09416f42  

## Ownership & control

### Holdings / subsidiaries

- **AMERICAN DENTAL PARTNERS INC** (director) — https://whiteintel.dev/entity/c2e0eba9-a87a-538a-bf5b-c0682ce82644
- **SDS HOLDING CO** (officer) — https://whiteintel.dev/entity/518eb022-bb8b-5ec8-92f9-973789491b68

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SEMMELMAYER STEVEN J**. Human view: https://whiteintel.dev/entity/776a4dbe-28fd-53a1-9ac4-e26d09416f42 · Structured JSON: https://whiteintel.dev/api/public/dossier/776a4dbe-28fd-53a1-9ac4-e26d09416f42._

_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"._