---
title: "COOK RALPH K — Ownership Dossier"
canonical: https://whiteintel.dev/entity/954289e7-e7a2-5507-8cd4-4c84904aec14
json: https://whiteintel.dev/api/public/dossier/954289e7-e7a2-5507-8cd4-4c84904aec14
identifier: sec:0001226097
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# COOK RALPH K

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001226097`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/954289e7-e7a2-5507-8cd4-4c84904aec14  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/954289e7-e7a2-5507-8cd4-4c84904aec14  

## Ownership & control

### Holdings / subsidiaries

- **FIRST INTERSTATE BANCSYSTEM INC** (officer) — https://whiteintel.dev/entity/f22dd105-32db-5ae5-bf1c-88253069889f

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **COOK RALPH K**. Human view: https://whiteintel.dev/entity/954289e7-e7a2-5507-8cd4-4c84904aec14 · Structured JSON: https://whiteintel.dev/api/public/dossier/954289e7-e7a2-5507-8cd4-4c84904aec14._

_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"._