---
title: "COHEN MARC A — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a962ceeb-c88e-50a1-ad02-ca8b2bb1e437
json: https://whiteintel.dev/api/public/dossier/a962ceeb-c88e-50a1-ad02-ca8b2bb1e437
identifier: sec:0001132945
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# COHEN MARC A

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001132945`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a962ceeb-c88e-50a1-ad02-ca8b2bb1e437  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a962ceeb-c88e-50a1-ad02-ca8b2bb1e437  

## Ownership & control

### Holdings / subsidiaries

- **OPNET TECHNOLOGIES INC** (director) — https://whiteintel.dev/entity/e2f8dd6c-e1c7-5eb2-956c-72eebfe47c04
- **OPNET TECHNOLOGIES INC** (officer) — https://whiteintel.dev/entity/e2f8dd6c-e1c7-5eb2-956c-72eebfe47c04
- **OPNET TECHNOLOGIES INC** (tenpercentowner) — https://whiteintel.dev/entity/e2f8dd6c-e1c7-5eb2-956c-72eebfe47c04
- **C4 Therapeutics, Inc.** (director) — https://whiteintel.dev/entity/e7ae52ea-8765-54cb-a228-2de27cbc8bbd
- **Korro Bio, Inc.** (director) — https://whiteintel.dev/entity/71e9bcfd-4176-551b-b776-01b734a2fd82
- **C4 Therapeutics, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/e7ae52ea-8765-54cb-a228-2de27cbc8bbd
- **C4 Therapeutics, Inc.** (officer) — https://whiteintel.dev/entity/e7ae52ea-8765-54cb-a228-2de27cbc8bbd

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **COHEN MARC A**. Human view: https://whiteintel.dev/entity/a962ceeb-c88e-50a1-ad02-ca8b2bb1e437 · Structured JSON: https://whiteintel.dev/api/public/dossier/a962ceeb-c88e-50a1-ad02-ca8b2bb1e437._

_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"._