# Matthew John Downs

Matthew John Downs of Maryland Heights, MO appears across SEC filings — Form ADV advisers, Form D, Reg A, and crowdfunding offerings. 8 filing roles across Form ADV (5), Form D (3).

## Filings (8)

| Filed | Source | Entity | Role | Location |
| --- | --- | --- | --- | --- |
| 2025-03-28 | Form ADV | [SANDBOX INVESTMENT MANAGEMENT, LLC](https://search.stillhousedata.com/firm/163451) | MANAGER | CHICAGO, IL |
| 2025-03-28 | Form ADV | [CULTIVIAN SANDBOX VENTURE MANAGEMENT II LLC](https://search.stillhousedata.com/firm/292259) | MANAGING MEMBER | CHICAGO, IL |
| 2025-03-28 | Form ADV | [SANDBOX HOLDINGS, LLC](https://search.stillhousedata.com/firm/167419) | MANAGING MEMBER | CHICAGO, IL |
| 2025-03-28 | Form ADV | [CULTIVIAN SANDBOX VENTURE MANAGEMENT, LLC](https://search.stillhousedata.com/firm/168817) | MANAGING MEMBER | CHICAGO, IL |
| 2025-03-31 | Form ADV | [213 MANAGEMENT, LLC](https://search.stillhousedata.com/firm/300952) | MANAGING MEMBER | CHICAGO, IL |
| 2024-04-10 | Form D | [Lumeris Group Holdings Corp](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1421621&type=&dateb=&owner=include&count=40) | Director | MARYLAND HEIGHTS, MO |
| 2013-08-09 | Form D | [Healthbox Florida I LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1584012&type=&dateb=&owner=include&count=40) | Director | Chicago, IL |
| 2013-10-07 | Form D | [Healthbox Nashville I LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1587949&type=&dateb=&owner=include&count=40) | Promoter | CHICAGO, IL |


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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.