---
title: "HAMMER FIBER OPTICS HOLDINGS CORP — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f87f06f2-618e-513c-9005-c44345763550
json: https://whiteintel.dev/api/public/dossier/f87f06f2-618e-513c-9005-c44345763550
identifier: sec:0001539680
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# HAMMER FIBER OPTICS HOLDINGS CORP

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001539680`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/f87f06f2-618e-513c-9005-c44345763550  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f87f06f2-618e-513c-9005-c44345763550  

## Ownership & control

### Owners / controllers

- **SEVELL MICHAEL** (tenpercentowner) — https://whiteintel.dev/entity/bc53d2d0-efe5-582f-acd9-e59182fa7cda
- **COTHILL MICHAEL** (tenpercentowner) — https://whiteintel.dev/entity/093bdaad-8fb5-5585-91fd-ecf2c899472d
- **STOGDILL MARK** (tenpercentowner) — https://whiteintel.dev/entity/db6923e8-ddf2-5b37-855d-bb358a03f65f
- **STOGDILL HELEN E.** (tenpercentowner) — https://whiteintel.dev/entity/012a73dd-d209-5497-81d3-4d3060705b24

### UBO chain (walk to the ultimate owner)

A **16-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **HAMMER FIBER OPTICS HOLDINGS CORP**. Human view: https://whiteintel.dev/entity/f87f06f2-618e-513c-9005-c44345763550 · Structured JSON: https://whiteintel.dev/api/public/dossier/f87f06f2-618e-513c-9005-c44345763550._

_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"._