---
title: "ALLEGHENY NEW MOUNTAIN PARTNERS L P — Ownership Dossier"
canonical: https://whiteintel.dev/entity/fc0bb43d-bcc3-53bd-ab89-b1697ea56e94
json: https://whiteintel.dev/api/public/dossier/fc0bb43d-bcc3-53bd-ab89-b1697ea56e94
identifier: sec:0001308409
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ALLEGHENY NEW MOUNTAIN PARTNERS L P

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001308409`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/fc0bb43d-bcc3-53bd-ab89-b1697ea56e94  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/fc0bb43d-bcc3-53bd-ab89-b1697ea56e94  

## Ownership & control

### Holdings / subsidiaries

- **BELLEROPHON THERAPEUTICS LLC** (tenpercentowner) — https://whiteintel.dev/entity/312fbbb3-d819-59dd-89ca-335115384f70
- **DELTEK SYSTEMS CORP** (tenpercentowner) — https://whiteintel.dev/entity/97ecc433-9093-5568-8664-efc9131f4f50

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ALLEGHENY NEW MOUNTAIN PARTNERS L P**. Human view: https://whiteintel.dev/entity/fc0bb43d-bcc3-53bd-ab89-b1697ea56e94 · Structured JSON: https://whiteintel.dev/api/public/dossier/fc0bb43d-bcc3-53bd-ab89-b1697ea56e94._

_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"._