---
title: "BUCHER JAMES B — Ownership Dossier"
canonical: https://whiteintel.dev/entity/73bf3794-9bcd-5251-8b31-db4671e68db6
json: https://whiteintel.dev/api/public/dossier/73bf3794-9bcd-5251-8b31-db4671e68db6
identifier: sec:0001664928
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# BUCHER JAMES B

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001664928`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/73bf3794-9bcd-5251-8b31-db4671e68db6  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/73bf3794-9bcd-5251-8b31-db4671e68db6  

## Ownership & control

### Holdings / subsidiaries

- **Zentalis Pharmaceuticals, Inc.** (officer) — https://whiteintel.dev/entity/9afb0ed4-db40-5db3-b5b3-1b855d838e07
- **HARPOON THERAPEUTICS, INC.** (officer) — https://whiteintel.dev/entity/f5cf95e6-e3de-5cf1-b76f-e6289d5d9b2e
- **Climb Bio, Inc.** (officer) — https://whiteintel.dev/entity/8ebdaa25-1d2c-5874-b059-7bbcc43083c6
- **ALDER BIOPHARMACEUTICALS INC** (officer) — https://whiteintel.dev/entity/bd34c763-0392-5321-8ae5-31cd3e3f2b3f

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **BUCHER JAMES B** — https://whiteintel.dev/entity/73bf3794-9bcd-5251-8b31-db4671e68db6 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **BUCHER JAMES B**. Human view: https://whiteintel.dev/entity/73bf3794-9bcd-5251-8b31-db4671e68db6 · Structured JSON: https://whiteintel.dev/api/public/dossier/73bf3794-9bcd-5251-8b31-db4671e68db6._

_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"._