---
title: "DOLAN HELEN A — Ownership Dossier"
canonical: https://whiteintel.dev/entity/d3d447d7-8a55-54f4-9c5d-bbce2b22f851
json: https://whiteintel.dev/api/public/dossier/d3d447d7-8a55-54f4-9c5d-bbce2b22f851
identifier: sec:0000902298
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# DOLAN HELEN A

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0000902298`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/d3d447d7-8a55-54f4-9c5d-bbce2b22f851  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/d3d447d7-8a55-54f4-9c5d-bbce2b22f851  

## Ownership & control

### Holdings / subsidiaries

- **AMC Networks Inc.** (tenpercentowner) — https://whiteintel.dev/entity/7a9d3d80-0dee-584b-9903-68e439124f35
- **Madison Square Garden Entertainment Corp.** (other) — https://whiteintel.dev/entity/ab240066-4114-5406-b317-945df52cbb13
- **AMC Networks Inc.** (other) — https://whiteintel.dev/entity/7a9d3d80-0dee-584b-9903-68e439124f35
- **Madison Square Garden Sports Corp.** (tenpercentownerother) — https://whiteintel.dev/entity/78b804ac-f25e-576a-bb39-a814e50b3f04
- **Sphere Entertainment Co.** (tenpercentownerother) — https://whiteintel.dev/entity/df7c4675-66ad-5ccd-9eed-e26e4c7bda3c
- **AMC Networks Inc.** (tenpercentownerother) — https://whiteintel.dev/entity/7a9d3d80-0dee-584b-9903-68e439124f35
- **MADISON SQUARE GARDEN CO** (tenpercentownerother) — https://whiteintel.dev/entity/0ec0aab9-0593-5e49-9132-5643c70dc51c
- **Sphere Entertainment Co.** (other) — https://whiteintel.dev/entity/df7c4675-66ad-5ccd-9eed-e26e4c7bda3c
- **CABLEVISION SYSTEMS CORP /NY** (tenpercentownerother) — https://whiteintel.dev/entity/4ca5ed89-bf12-507b-b9e7-e6053cac2d03
- **CABLEVISION SYSTEMS CORP /NY** (other) — https://whiteintel.dev/entity/4ca5ed89-bf12-507b-b9e7-e6053cac2d03
- **MADISON SQUARE GARDEN CO** (other) — https://whiteintel.dev/entity/0ec0aab9-0593-5e49-9132-5643c70dc51c

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **DOLAN HELEN A**. Human view: https://whiteintel.dev/entity/d3d447d7-8a55-54f4-9c5d-bbce2b22f851 · Structured JSON: https://whiteintel.dev/api/public/dossier/d3d447d7-8a55-54f4-9c5d-bbce2b22f851._

_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"._