---
title: "HEITMANN WILLIAM F — Ownership Dossier"
canonical: https://whiteintel.dev/entity/0970dcac-404f-5b30-a013-bbbbf624d924
json: https://whiteintel.dev/api/public/dossier/0970dcac-404f-5b30-a013-bbbbf624d924
identifier: sec:0001196116
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# HEITMANN WILLIAM F

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001196116`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/0970dcac-404f-5b30-a013-bbbbf624d924  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/0970dcac-404f-5b30-a013-bbbbf624d924  

## Ownership & control

### Holdings / subsidiaries

- **GABELLI EQUITY TRUST INC** (director) — https://whiteintel.dev/entity/226384b0-1b1e-59ea-8b88-442243ad6e71
- **GAMCO Natural Resources, Gold & Income Trust** (director) — https://whiteintel.dev/entity/2a06b9e3-43a8-5573-959e-7313ef94e33d
- **DIAGNOSTIC RETRIEVAL SYSTEMS INC** (director) — https://whiteintel.dev/entity/dc95bab4-a80d-538a-9fae-6e96b64a49ae

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **HEITMANN WILLIAM F**. Human view: https://whiteintel.dev/entity/0970dcac-404f-5b30-a013-bbbbf624d924 · Structured JSON: https://whiteintel.dev/api/public/dossier/0970dcac-404f-5b30-a013-bbbbf624d924._

_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"._