---
title: "MCKIERNAN WILLIAM S — Ownership Dossier"
canonical: https://whiteintel.dev/entity/bec306f4-c038-51c2-a45e-70c6f4f693fb
json: https://whiteintel.dev/api/public/dossier/bec306f4-c038-51c2-a45e-70c6f4f693fb
identifier: sec:0001064151
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MCKIERNAN WILLIAM S

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001064151`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/bec306f4-c038-51c2-a45e-70c6f4f693fb  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bec306f4-c038-51c2-a45e-70c6f4f693fb  

## Ownership & control

### Holdings / subsidiaries

- **CYBERSOURCE CORP** (tenpercentowner) — https://whiteintel.dev/entity/7779b90f-323b-5d7f-86fc-e45ea555fc94
- **CYBERSOURCE CORP** (director) — https://whiteintel.dev/entity/7779b90f-323b-5d7f-86fc-e45ea555fc94
- **CYBERSOURCE CORP** (officer) — https://whiteintel.dev/entity/7779b90f-323b-5d7f-86fc-e45ea555fc94

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MCKIERNAN WILLIAM S**. Human view: https://whiteintel.dev/entity/bec306f4-c038-51c2-a45e-70c6f4f693fb · Structured JSON: https://whiteintel.dev/api/public/dossier/bec306f4-c038-51c2-a45e-70c6f4f693fb._

_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"._