---
title: "BLACKMAN SAMUEL C. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f9ac818e-355c-50af-88cf-45fae9307528
json: https://whiteintel.dev/api/public/dossier/f9ac818e-355c-50af-88cf-45fae9307528
identifier: sec:0001863676
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# BLACKMAN SAMUEL C.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001863676`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/f9ac818e-355c-50af-88cf-45fae9307528  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f9ac818e-355c-50af-88cf-45fae9307528  

## Ownership & control

### Holdings / subsidiaries

- **Day One Biopharmaceuticals, Inc.** (officer) — https://whiteintel.dev/entity/f84c84e2-4e61-565b-94e2-fe9a1c41646f

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **BLACKMAN SAMUEL C.**. Human view: https://whiteintel.dev/entity/f9ac818e-355c-50af-88cf-45fae9307528 · Structured JSON: https://whiteintel.dev/api/public/dossier/f9ac818e-355c-50af-88cf-45fae9307528._

_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"._