---
title: "KLOCK JOHN C JR — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f327319d-e6eb-5bfb-a563-1a0303d00614
json: https://whiteintel.dev/api/public/dossier/f327319d-e6eb-5bfb-a563-1a0303d00614
identifier: sec:0000939568
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# KLOCK JOHN C JR

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0000939568`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/f327319d-e6eb-5bfb-a563-1a0303d00614  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f327319d-e6eb-5bfb-a563-1a0303d00614  

## Ownership & control

### Holdings / subsidiaries

- **QT IMAGING HOLDINGS, INC.** (director) — https://whiteintel.dev/entity/3582453e-3dad-5204-aacc-3883d317676c
- **QT IMAGING HOLDINGS, INC.** (tenpercentowner) — https://whiteintel.dev/entity/3582453e-3dad-5204-aacc-3883d317676c
- **QT IMAGING HOLDINGS, INC.** (officer) — https://whiteintel.dev/entity/3582453e-3dad-5204-aacc-3883d317676c

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **KLOCK JOHN C JR**. Human view: https://whiteintel.dev/entity/f327319d-e6eb-5bfb-a563-1a0303d00614 · Structured JSON: https://whiteintel.dev/api/public/dossier/f327319d-e6eb-5bfb-a563-1a0303d00614._

_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"._