---
title: "KEEFER JASON — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ad376e25-eb2c-5d96-b8d8-33e6e7affc47
json: https://whiteintel.dev/api/public/dossier/ad376e25-eb2c-5d96-b8d8-33e6e7affc47
identifier: sec:0001717590
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# KEEFER JASON

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001717590`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ad376e25-eb2c-5d96-b8d8-33e6e7affc47  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ad376e25-eb2c-5d96-b8d8-33e6e7affc47  

## Ownership & control

### Holdings / subsidiaries

- **OSIRIS THERAPEUTICS, INC.** (officer) — https://whiteintel.dev/entity/39bacc57-6a50-5c6f-8ae1-eeae8f591f30

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **KEEFER JASON**. Human view: https://whiteintel.dev/entity/ad376e25-eb2c-5d96-b8d8-33e6e7affc47 · Structured JSON: https://whiteintel.dev/api/public/dossier/ad376e25-eb2c-5d96-b8d8-33e6e7affc47._

_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"._