# John R Sinnenberg

John R Sinnenberg appears across SEC filings — Form ADV advisers, Form D, Reg A, and crowdfunding offerings. 4 filing roles across Form D (3), Form ADV (1).

## Filings (4)

| Filed | Source | Entity | Role | Location |
| --- | --- | --- | --- | --- |
| 2025-07-08 | Form ADV | [CYPRIUM INVESTMENT PARTNERS LLC](https://search.stillhousedata.com/firm/160746) | PARTNER AND MEMBER | CLEVELAND, OH |
| 2014-12-24 | Form D | [Cyprium Investors IV LP](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1560759&type=&dateb=&owner=include&count=40) | Executive Officer | CLEVELAND, OH |
| 2024-12-27 | Form D | [Cyprium VI Feeder LP](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2049756&type=&dateb=&owner=include&count=40) | Executive Officer | CLEVELAND, OH |
| 2024-12-27 | Form D | [Cyprium Investors VI LP](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2049696&type=&dateb=&owner=include&count=40) | Executive Officer | CLEVELAND, OH |


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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.