---
title: "SPOCK THOMAS EDGAR — Ownership Dossier"
canonical: https://whiteintel.dev/entity/21bce2ac-5475-5ffd-815f-efcaac2e0981
json: https://whiteintel.dev/api/public/dossier/21bce2ac-5475-5ffd-815f-efcaac2e0981
identifier: sec:0001573556
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SPOCK THOMAS EDGAR

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001573556`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/21bce2ac-5475-5ffd-815f-efcaac2e0981  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/21bce2ac-5475-5ffd-815f-efcaac2e0981  

## Ownership & control

### Holdings / subsidiaries

- **MANAGED DURATION INVESTMENT GRADE MUNICIPAL FUND** (director) — https://whiteintel.dev/entity/9868035f-a785-5c22-bc9f-6a6cd54caff9
- **1838 BOND DEBENTURE TRADING FUND** (director) — https://whiteintel.dev/entity/5adccbae-35cc-54b8-895c-f7f139bd29da

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SPOCK THOMAS EDGAR**. Human view: https://whiteintel.dev/entity/21bce2ac-5475-5ffd-815f-efcaac2e0981 · Structured JSON: https://whiteintel.dev/api/public/dossier/21bce2ac-5475-5ffd-815f-efcaac2e0981._

_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"._