---
title: "Siminoff Ellen F — Ownership Dossier"
canonical: https://whiteintel.dev/entity/12c68304-20d5-5565-aaa3-c0728f998cf5
json: https://whiteintel.dev/api/public/dossier/12c68304-20d5-5565-aaa3-c0728f998cf5
identifier: sec:0001386430
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# Siminoff Ellen F

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001386430`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/12c68304-20d5-5565-aaa3-c0728f998cf5  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/12c68304-20d5-5565-aaa3-c0728f998cf5  

## Ownership & control

### Holdings / subsidiaries

- **BigCommerce Holdings, Inc.** (director) — https://whiteintel.dev/entity/15ceda27-be7d-5fca-80fa-0b328887f14c
- **BigCommerce Holdings, Inc.** (director) — https://whiteintel.dev/entity/15ceda27-be7d-5fca-80fa-0b328887f14c
- **TAKE TWO INTERACTIVE SOFTWARE INC** (director) — https://whiteintel.dev/entity/ee0e6289-98eb-544e-84ee-c1ca3868c29d
- **TAKE TWO INTERACTIVE SOFTWARE INC** (director) — https://whiteintel.dev/entity/ee0e6289-98eb-544e-84ee-c1ca3868c29d
- **BigCommerce Holdings, Inc.** (officer) — https://whiteintel.dev/entity/15ceda27-be7d-5fca-80fa-0b328887f14c
- **BigCommerce Holdings, Inc.** (director) — https://whiteintel.dev/entity/15ceda27-be7d-5fca-80fa-0b328887f14c
- **ZYNGA GAME NETWORK INC** (director) — https://whiteintel.dev/entity/aec06db7-97a1-58a5-8f02-4081659ffc5a
- **SOLARWINDS, INC.** (director) — https://whiteintel.dev/entity/66e62681-8150-570c-859e-979023613086
- **CarParts.com, Inc.** (director) — https://whiteintel.dev/entity/b60d2b2a-9ae5-5b56-9939-4b28604a56d0
- **JOURNAL CO** (director) — https://whiteintel.dev/entity/32cbdb12-1a8e-545f-8378-6043564a30fe
- **GLU MOBILE INC** (director) — https://whiteintel.dev/entity/00280f14-39bf-551b-9e1e-551be1b53fe6

## 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 **Siminoff Ellen F** — https://whiteintel.dev/entity/12c68304-20d5-5565-aaa3-c0728f998cf5 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Siminoff Ellen F**. Human view: https://whiteintel.dev/entity/12c68304-20d5-5565-aaa3-c0728f998cf5 · Structured JSON: https://whiteintel.dev/api/public/dossier/12c68304-20d5-5565-aaa3-c0728f998cf5._

_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"._